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IFLA Universal Bibliographic Control and International MARC Core Programme (UBCIM)

UNIMARC Manual : Bibliographic Format 1994

APPENDIX F : Cartographic Materials Codes

Introduction

This list was developed for use in UKMARC records. It is reviewed and updated from time to time.

This list is up to date as at July 1986. Note that the authorititative list is the latest version in the UKMARC Manual.

Code List

131$a: Spheroid Codes

aa = Airy (1830)
ab = Australian National (1966)
ac = Bessel 1841
ad = Clarke 1858
ae = Clarke 1866
af = Clarke 1880
ag = Clarke 1880 (Modified)
ah = Clarke 1880 (Palestine)
ai = Danish (Andreae)
aj = Delambre (Carte de France)
ak = Everest (1830)
al = Everest (Malaya)
am = Everest (Borneo)
an = Helmert 1906
ao = Hayford 1909 (and 1910)
International 1924 see Hayford (ao)
ap = Kragenhoff
aq = Krasovskiy 1848
ar = Müffling 1821
as = S.E. Asia ("Fischer 155")
at = Struve
ba = Svanberg
bb = Zhylinskiy ("Adjustment Spheroid")
bc = Walbeck
bd = War Office (McCaw) 1924
be = World Geodetic System (1972-)
uu = unknown spheroid
zz = other known spheroid of construction of the map

131$b: Horizontal Datum Codes

Note: See also sequence of non specific horizontal datums starting at taa
aaa = Abidjan, Ivory Coast
aab = Abra Pampa, Argentina
aac = Abrolhos Lighthouse, Brazil
aad = Abut Head (Okarito Meridional Circuit) South Island, New Zealand
aae = Accra, Leigon Pillar (GCS No. 121), Ghana
aaf = Aden Observatory
aag = Aden Datum
aah = Adelaide Observatory, South Australia
aai = Adjusted between Hong Kong and Nanking Astronomic Points
aaj = Adindan (30th Meridian) Datum, Sudan
aak = Adjusted between Red Bridge Datum and Nanking Datum
aal = Aee Pier, Phoenix Islands
aam = Aerodist Datum
Afgooye use cmo
aan = African Datum
aao = Agourai Base North End, Morocco
aap = Agri (Danish GI 1934), Denmark
aaq = Agrihan Astronomic Station (1920), Agrihan Island, Marianas Islands
aar = Ahaura (Grey Meridional Circuit), South Island, New Zealand
aas = Ain el Abd, Kuwait
aat = Akmolinsk Mosque, USSR
aba = Akra Milon (Cum-Burnu), Leros
abb = Akureuri, Iceland
abc = Alamagan Astromic Station (1920), Alamagan Island, Mariana Islands
abd = Albasin, USSR
abe = Al Bushairyah, Qatar
abf = Al Da Asa, Arabia
abg = Aleksandrovsk, USSR
abh = Alma Ata, USSR
abi = American Samoa Datum 1962, Samoa Islands
abj = Amersfoort 1885, Netherlands
abk = Anatahan Astronomic Station (1920), Anatahan Island, Marcus Islands
abl = Anatahan E, 29th Engr 1964, Anatahan Island, Mariana Islands
abm = Angola Datum, Angola
abn = Ankara, Turkey
abo = An-lu Astro, China
abp = A Patutahi, New Zealand
abq = Aon Island Triangulation Station, Utirik Atoll, Marshall Islands
abr = Apia Observatory Tranist House, Opolu Island, Samoa Island
abs = Apollo 15 Datum, Moon
abt = Approximate European Datum, Afghanistan
aca = Approximate European Datum, Cyprus
acb = Approximate European Datum, Egypt
acc = Approximate European Datum, Iran
acd = Approximate European Datum, Iraq
ace = Approximate European Datum, Israel
acf = Approximate European Datum, Jordan
acg = Approximate European Datum, Libya
aci = Approximate European Datum, Syria
acj = Approximate European Datum, Turkey
ack = Approximate Hong Kong Datum
acl = Approximate Indian 1960 Datum
acm = Approximate Indian Datum, Afghanistan
acn = Approximate Indian Datum, Burma
aco = Approximate Indian Datum, Cambodia, Laos, North Vietnam, South Vietnam
acp = Approximate Indian Datum, India
acq = Approximate Indian Datum, Thailand
acr = Approximate Kweiyang, China
acs = Approximate Luzon Datum, Philippines
act = Approximate Nanking Datum
ada = Approximate Nanking 1960 Datum
adb = Aproximate North American Datum 1927, Greater Antilles
adc = Approximate Old Hawaiian Datum, Hawaiian Islands
add = Approximate Red Bridge Datum
ade = Approximate Tokyo Datum
adf = Arahodoka-Byo Astro
adg = Arc (of the 30th Meridian) 1935 Datum, Africa
adh = Arc (of the 30th Meridian) 1950 Datum, Africa
adi = Arc (of the 30th Meridian) 1960 Datum, Africa
adj = Arc (of the 30th Meridian) (unspecified) Datum, Africa
adk = Archway Rock, Gough Island
adl = Arequipa Astro, Bolivia
adm = Arkhangel'sk, USSR
adn = Arumenii Island Triangulation Station, Bikor Atoll, Marshall Islands
ado = Arutunga (Anchorage) Observation Spot, Aitutaki Island, Cook Islands
adp = A.S. 120 Tokong Hill, Balik Papan, Kalimantan, Indonesia
adq = Ascension Astro 1955
adr = Ascension Island 1958
ads = Ashkhabad, USSR
adt = Asor Astro 1966, Caroline Islands
aea = Astro Observation Point East Island Maug, Mariana Islands
aeb = Astro Observation Point Pagan, Mariana Islands
aec = Astro Observation Point Rota, Mariana Islands
aed = Astro Observation Point Uracus, Mariana Islands
aee = Astro Pier, Swains Island, Samoa Islands
aef = Astro - 1958, Montserrat, Lesser Antilles
aeg = Astro 502, USSR
aeh = Astro 809, USSR
aei = Astronomic Point (1951) Yap, Caroline Islands
aej = Astronomic Station (1951), Elato Atoll, Caroline Islands
aek = Astronomic Station (1952) Marcus Island
ael = Astronomic Station ''A' (1951), Jemo Island, Marshall Islands
aem = Astronomic Station Bab South (1947), Babelthaup Is., Caroline Islands
aen = Astronomic Station Beacon E (1945). Iwo-Jima, Bonin Islands
aeo = Astronomic Station B1 (1920), Gaferut Island, Caroline Islands
aep = Astronomic Station B4 (1920), Sorol Atoll, Caroline Islands
aeq = Astronomic Station Hong (1947), Admiralty Islands
aer = Astronomic Station Mirami-Oaguri-Shima, Daito Islands, Ryukyu Islands
aes = Astronomic Station Nishino-Shima, Bonin Islands
aet = Astronomic Station No. B (1921), Ifalik Atoll, Caroline Islands
afa = Astronomic Station No. B1 (1921), Pulap Atoll, Caroline Islands
afb = Astronomic Station No. 1 (1951), Nomoi Islands, Caroline Islands
afc = Astronomic Station No. 1 (1951), Pingelap Island, Caroline Islands
afd = Astronomic Station No. 1 (1951), Puluwat Atoll, Caroline Islands
afe = Astronomic Station No. 1 (1951), Woleai Atoll, Caroline Islands
aff = Astronomic Station No. 1-A (1951), Namorik Atoll, Marshall Islands
afg = Astronomic Station No. 2 (1951), Majuro Atoll, Marshall Islands
afh = Astronomic Station No. 2 (1951), Truk Island, Caroline Islands
afi = Astronomic Station No. 2 (1952), Wake Island
afj = Astronomic Station No. 4 (1951), Mukuoro Atoll, Caroline Islands
afk = Astronomic Station No. 8 (1951), Ngatik Atoll, Caroline Islands
afl = Astronomic Station No. 19 (1951), Nomwin Atoll, Caroline Islands
afm = Astronomic Station No. 32 (1951), Ulithi Atoll, Marshall Islands
afn = Astronomic Station No. 42 (1952), Kwajalein Atoll, Marshall Islands
afo = Astronomic Station No. 61-A (1951), Jauluit Atoll, Marshall Islands
afp = Astronomic Station No. 5, Chichi-Jima, Bonin Islands
afq = Astronomic Station Ponape (1951), Ponape Island, Senyavin Islands, Caroline Islands
afr = Astronomical Fixation W.A. 21, Western Australia
afs = Astronomical Station, Dunpu, New Guinea
aft = Astronomical Station, Salankana, New Guinea
aga = Astronomical Station, Wau, New Guinea
agb = Astro-Secor 1966, Tarawa and Gilbert Islands
agc = Asunción Astronomic Station (1920), Mariana Islands
agd = Atafu Astro, Atafu Island, Tokelau Islands
age = Athens Datum, Greece
agf = Athens National Observatory, Greece
agg = Athi, Kenya
agh = Austral Pillar W.A., Western Australia
agi = Australian Army Observation Point L.A. 22, Lacrosse Island, Western Australia
agj = Australian Army Observation Point W.A. 3, Cockatoo Island, Western Australia
agk = Australian Datum, Australia
agl = Australian Geodetic, Australia
Australian National Datum, Australia see Australian Datum (agk)
agm = Australian Provisional Datum, Australia
agn = Ayabacas Base, Peru
ago = Azabu Observatory, Tokyo (Bonin Islands and Ryukyu Islands)
agp = B of base-Luiz Correia, Brazil
agq = Baa-Ratti, Lesser Sunda Islands, Indonesia
agr = Bahia Honda, Venezuela
ags = Baie du Morbihan Base North End, Kerguelen
agt = Baker Island Astro Pier, Baker Island, Oceania
aha = Baku-Aleksandra-Nevskiy Cathedral, USSR
ahb = Baku 1927 System, USSR
ahc = Balanachan, Philippines
ahd = Balikesir, Turkey
ahe = Baliza Chiriguano, Graham Land, Antarctica
ahf = Baltra Island Astro, Galapagos Island, Ecuador
ahg = Banjer Masin Astro, Borneo
ahh = Banika Island Observation Spot, Russel Island, Solomon Islands
ahi = Bara Bay, Buru, Moluccas, Indonesia
ahj = Barcelona, Venezuela
ahk = Barreira do Monta, Brazil
ahl = Base Este (Fort de Coimbra), Brazil
ahm = Batavia, Java, Indonesia
ahn = Bathurst Base East End, Gambia
aho = Beacon A, Espiritu Santo Island, New Hebrides
ahp = Beacon, Christmas Island, Line Islands
ahq = Bekaa Badse South End, Lebanon
ahr = Belgian 1950 System (Lommel Signal), Belgium
ahs = Belgrano (old), Argentina
aht = Belgrano 1928, Argentina
aia = Bengasi Lighthouse, Libya
aib = Beni Meyimel, Morocco
aic = Barracks, Libya
aid = Bermuda Datum 1943, Bermuda Islands
aie = Bermuda Datum 1957, Bermuda Islands
aif = Bermuda Datum 1959, Bermuda Islands
aig = Bermuda Datum 1964, Bermuda Islands
aih = Bern (1898), Switzerland
aii = Biak Base West End, Biak Island, Schouten Islands
aij = Biao, Fernando Po Island, Spanish Guinea
aik = Bikati (Pikhat) Island Astro, Gilbert Island
ail = Bikini, Marshall Islands
aim = Binaro Astro, 1949
ain = Birnie Island, Phoenix Island
aio = Bissau Base Northwest End Pillar, Guinea-Bissau
aip = Bjornova
aiq = Blumut, Johore, Malaysia
air = Boa Entrada, 1955
ais = Boca Grande Astro, Venezuela
ait = Boghra, Afghanistan
aja = Bogotá Observatorio, Colombia
ajb = Bogoslovskiy, USSR
ajc = Bogovskaya, USSR
ajd = Bokku Island Triangulation Station, Wotje Atoll, Marshall Islands
aje = Bolkhov, USSR
ajf = Bon Said Lighthouse, Tunisia
ajg = Bonto Island Triangulation Station, Marshall Islands
ajh = Borowa Gora, Poland
aji = Borugu-Byo Astro, China
ajj = Bosun Astro 1941, Midway Islands
ajk = Botanical Hill, South Island, New Zealand
ajl = Bowen Observation Spot, Queensland, Australia
ajm = Brazzaville, Congo (Brazzaville)
ajn = BS 67, Malaysia
ajo = Bucharest, Rumania
ajp = Buffelsfontein, South Africa
ajq = Bukit Asa Datum, Selangor, Malaysia
ajr = Bukit Panau, Kelantan, Malaysia
ajs = Bukit Rimpan, Banka Island, Indonesia
ajt = Bulgarian, Bulgaria
aka = Buller, South Island, New Zealand
akb = Busoga, Uganda
akc = Busowa, Uganda
akd = Bushehr, Iran
ake = Byrd Station, Antarctica
akf = Cabo Bojador Lighthouse, Spanish Sahara
akg = Cagayan Sulu, Cagayan Sulu Island, Philippines
akh = Cairns, Queensland, Australia
aki = Camacupa Base SW End (Campo de Aviacao), Angola
akj = Camorta, Nicobar Islands
akk = Camp Area Astro
akl = Campo de Mayo Base, Argentina
akm = Campo Inchauspe, Argentina
akn = Campos Rodrigues, Mozambique
ako = Cam Lang, Vietnam
akp = Candlemas Island Astro, Antarctica
akq = Canton Island Astro 1966
akr = Cap Esteiras Astro
aks = Cape Canaveral Datum, USA
akt = Cape Hotham Lighthouse, Northern Territory, Australia
ala = Cape St Jacques, Vietnam
alb = Cape Town Observatory, South Africa
alc = Cape, South Africa
ald = Caracas (Observatorio Cajigal) 1911, Venezuela
ale = Caracas (Observatorio Cajigal) 1937, Venezuela
alf = Cardenas, Cuba
alg = Carthage, Tunisia
alh = Castanea delle Furie, Sicily
ali = Castelli Base SE End, Argentina
alj = Castelo di São Jorge, Lisbon, Portugal
alk = Castiletes, Venezuela
all = Cay, Panaeati Island, Deboyne Islands, Louisiade Archipelago
alm = Central Origin, Australia
aln = Centro de Base (Mato Grosso), Brazil
alo = Cerro de Montevideo, Uruguay
alp = Cerro Puntiagudo, Argentina
alq = Ceylon
alr = Chagos (Sao 69)
als = Ch'ang'chun, Manchuria
alt = Che'eng-te, Manchuria
ama = Chi-kou-yang, China
amb = Ch'in Hsien Astro, China
amc = Ch'ung-Yang Astro, China
amd = Chang-chia-kou, China
ame = Chatham Island Astronomical Section, Chatham Island, New Zealand
amf = Chatham Island Observatory, Port Blair, Andaman Islands
amg = Chen-tu Astro, China
amh = Chernyy Verkh, Bulgaria
ami = Chiao-shan, China
amj = Chichi Jima, Bonin Islands
amk = Chich-ch'eng Astro, China
aml = Chin-men'tao Astro, China
amm = Chiu-chiang Astro, China
amn = China Land Survey School, China
amo = Ching-chou Astro, China
amp = Ching-lo Astro, China
amq = Ching-men Astro (West Base), China
amr = Cho-lu Astro, China
ams = Chos Malal, Argentina
amt = Christmas Island Astro
ana = Chua Astro
anb = Chung-kung-ch'i Astro, China
anc = Chufut-Kale, USSR
and = Church (Luganville), Espiritu Santo Island, New Hebrides
ane = Chyahatsuro Astro, China
anf = Circuit, Rhodesia
ang = Clipperton Island Astro 1957, Clipperton Island
anh = Clipperton Island Light 1935, Clipperton Island
ani = Colline Verte Lighthouse (Kwangshowan), China
anj = Conakry Pyramid of the Service Géographique, Guinea
ank = Congo Yella Base, Zaire
anl = Congreso Plaza Constitucion, Asunción, Paraguay
anm = Constanta, Rumania
ann = Cookes Pillar, Broome, Western Australia
ano = Copenhagen (Nicolai), Denmark
anp = Córdoba, Argentina
anq = Corrego Alegre, Brazil
anr = Cotonou Astro
ans = Cruz Astro, Guadalcanal, Solomon Islands
ant = Dacin-byo Astro, China
aoa = Daito Shima Astro, Ryukyu Islands
aob = Dakar, Senegal
aoc = Danish Geodetic Institute 1934 System (AGRI), Denmark
aod = Darwin Observation Pillar, Northern Territory, Australia
aoe = Datum da Ilha das Flores, Flores and Corvo, Azores
aof = Datum de Ilha Gracioso-Base SW, Terceira, São Jorge, Pico, Faial, and Graciosa, Azores
aog = Datum du Ilha de São Miguel-S, Bras, São Miguel and Santa Maria Islands, Azores
aoh = Datum Nacional (San José), Chile
Datum Provisional la Canoa see Provisional South American 1956 Datum (cat)
aoi = Davao, Mindinao, Philippines
aoj = DC S-3 Astro-1913, St Lucia, Lesser Antilles
aok = Dedele Point Observation Spot, Papua
aol = Dergachi, USSR
aom = Derna Lighthouse, Libya
aon = Desaiz, Martinique, Lesser Antilles
aoo = Dili, Timor, Indonesia
aop = Direction Island Observation Spot, Coco or Keeling Islands
aoq = Djakarta New, Indonesia Djebel Beni Mdjimet see Beni Meyimel (aib)
aor = Dodo Island Observation Spot, Arno Atoll, Marshall Islands
aos = Dominica Astro M-12, Dominica, Lesser Antilles
aot = Dorpat II, Estonia
apa = DOS Astro Guxi (Guadalcanal), Solomon Islands
apb = DOS Astro SLX2, Sierra Leone
apc = DOS 415, Gambia
apd = Douala Airfield Flagstaff, Cameroon
ape = Dunnose, Great Britain
apf = East Base, Loyalty Islands
apg = East Mediterranean Chain, Tunisia
aph = Easter Island 1967
api = Eastern Rock, Poeloe Bam, West Irian
apj = Egypt-1930, Egypt (United Arab Republic)
apk = El Aaiun, Spanish Sahara
apl = El Bolson SB, Argentina
apm = Elbow Cay Light, Bahamas
apn = Emery Point Lighthouse, Northern Territory, Australia
apo = Enderbury Island, Phoenix Islands
app = Enibrik Island Observation Spot, Ailinginae Atoll, Marshall Islands
apq = Eniibukku Island Observation Spot, Mogiri, Marshall Islands
apr = Eniirikku Island Observation Spot, Mogiri, Marshall Islands
aps = Eniwetok Astro Pier, Marshall Islands
apt = Eniwetok-Wake 1960 Datum, Marshall Islands
aqa = Enuebing Triangulation Station, Ailinglapalap Atoll, Marshall Islands
aqb = Enyvertok Island Observation Spot, Rongerik Atoll, Marshall Islands
aqc = Erappu Channel Triangulation Station, Ailuk Atoll, Marshall Islands
aqd = Erdöhegy, Hungary
aqe = Erh-lien Dabusu Astro, China
aqf = Estanques, Venezuela
aqg = ETC Longitude Pillar, Malta Islands
aqh = European Datum
aqi = Extremo B2 Base Forteleza, Brazil
aqj = Extremo SE da Base (Minas Gerica), Brazil
aqk = Extremo Sul da Base (Piaui), Brazil
aql = Faaire Island Astro Station, Tuamoto Archipelago
aqm = Fais Astro, Fais Island, Caroline Islands
aqn = Fakfak, West Irian
aqo = Famagusta, Cyprus
aqp = Fao, Iraq
aqq = Farallon de Medinilla Astro Station (1921), Mariana Islands
aqr = Farallon de Pajaros Astro Station (1920), Mariana Islands
aqs = Fernando de Noronha Astro, Brazil
aqt = Fiji, 1956
ara = Final Sydney Datum 1941, New South Wales, Australia
arb = Final 1958, Iran
arc = Firestone Astro, Liberia
ard = First Astro 1942
are = Flagstaff Government Station, Abaiang Atoll, Gilbert Islands
arf = Flamingo Cay Light, Bahamas
arg = Flores Astro 1939
arh = Forteleza Astro, Brazil
ari = Fort Ambon, Moluccas, Indonesia
arj = Fort Charles Flagstaff, Greater Antilles
ark = Fort Cornwallis Flagstaff, Penang, Malaysia (West)
arl = Fort George Observation Spot, Cayman Islands
arm = Fort St Louis Flagstaff, Martinique, Lesser Antilles
arn = Fort Thomas 1955, St Kitts-Nevis, Lesser Antilles
aro = French Hydrographic
arp = French Mission Astro, Ecuador
arq = Front Range, New Caledonia
arr = Fuglenes, Norway
ars = Gabon 1951
art = Gaferut Astro, Caroline Islands
asa = Gahai-Byo Astro, China =
asb = Gambia Datum, Gambia
asc = Gan 1970
asd = Gandajika Base, Zaire
ase = Gardner Island, Phoenix Islands
asf = Gavan Sibir, USSR
asg = Gawler Downs, South Island, New Zealand
ash = Gellerthegy, Hungary
asi = Genoa 1908, Italy
asj = Genuk, Java, Indonesia
ask = Geodetic Datum 1949, New Zealand
asl = Ghana Datum, Ghana
asm = Gladstone Observation Spot, Queensland, Australia
asn = Goenoeng Dempo, Sumatra, Indonesia
aso = Golf Links, Sarawak, Malaysia
asp = Gora A Krasnovodsk Gur Yev, USSR
asq = Gorda Point Lighthouse, Nicaragua
asr = Gould Astro, Antarctica
ass = Goulter S Hill, South Island, New Zealand
ast = Government General, Dakar, Senegal
ata = Government Offices Flagstaff, Singapore
atb = Graciosa Base SW End, Terceira, Azores
atc = Grasberg, New Guinea
atd = Great Inagua Island Light, Bahamas
ate = Great Isaacs Light, Bahamas
atf = Great Ragged Island Light, Bahamas
atg = Great Stirrup Cay Astro, Bahamas
ath = Greek Datum, Greece
ati = Greenwich Observatory, Great Britain and Ireland
atj = Gromen 1951
atk = Grönfjörden, Svalbard
atl = Gronne Island, Greenland
atm = Grupo Escolar, Brazil
atn = G Segara Datum, Kalimantan, Indonesia
ato = G Serindung 1962
atp = Guam 1913
atq = Guam 1963
atr = Guadalupe Astro 1946
ats = Guardia Vecchia, Sardinia, Italy
att = Guasopa, Woodlark (Murua) Island, Trobriand Islands
baa = Guayaquil Astro, Ecuador
bab = Guguan Astro Station (1920), Mariana Islands
bac = Guhong Gajah Trom, Trengganu, Malaysia (West)
bad = Gunong Hijau Larut, Perak, Malaysia (West)
bae = Gun Cay Light, Bahamas
baf = Gun Hill, Negri Sembilan, Malaysia (West)
bag = Ha-erh-pin, Manchuria
bah = Habay-La-Neuve Base North End, Luxembourg
bai = Hai-la-erh, Manchuria
baj = Hainan Island, China
bak = Hairingassho-Byo Astro, China
bal = Hallett Astro, Antarctica
bam = Hammond Rock Light, New Guinea
ban = Hao'hsien Astro, China
bao = Hanoi Belvedere (Mirador), Vietnam
bap = Harbin, Manchuria
baq = Harvey Cay Light, Bahamas
bar = Hassetche Base South End, Syria
bas = Hawaiian Hiran (WGS 1966)
bat = Helsinki, Kallio Church, Finland
bba = Herat North, Afghanistan
bbb = Hermannskogel, Austria
bbc = Hito XVIII Astro, Chile
bbd = Hjörsey 1955, Iceland
bbe = Ho-ching Astro, China
bbf = Hog Island Light, Bahamas
bbg = Hogsty Reef Light, Bahamas
bbh = Hokkaido Central, Japan
bbi = Hole-in-the-Wall Light, Bahamas
bbj = Hong Kong-Nanking Astro Datum
bbk = Hong Kong-New Territories Datum, Hong Kong
bbl = Hong Kong 1929 Datum
bbm = Hong Kong 1963
bbn = Hope Bay, Graham Land, Antarctica
bbo = Horinhodoka Astro, China
bbp = Hospital Astro, Paraguay
bbq = Hsi-an, China
bbr = Hsi-ta-shan, Manchuria
bbs = Hsin-Yang Astro, China
bbt = Hsiu-Ying Astro, China
bca = Hua-Shao-Ying Astro, China
bcb = Huai-an Astro, China
bcc = Huai-lai Astro, China
bcd = Huang River Commission (1936), China
bce = Huirangi, North Island, New Zealand
bcf = Hull Island, Phoenix Islands
bcg = Hun-chun, Manchuria
bch = Hun-shan System
bci = Hupeh, Arc 1, China
bcj = Hupeh, Arc 2, China
bck = Hupeh, Arc 3, China
bcl = Hupeh, Arc 4, China
bcm = Hupeh, Arc 5, China
bcn = Hupeh, Arc 6, China
bco = Hupeh, Arc 7, 8 and 9A, China
bcp = Hupeh, Arc 10 and 11, China
bcq = Hupeh, Arc 12 and 22, China
bcr = Hupeh, Arc 13 and 15A, China
bcs = Hupeh, Arc 14, China
bct = Hupeh, Arc 16, China
bda = Hupeh, Arc 17, China
bdb = Hupeh, Arc 18, China
bdc = Hupeh, Arc 19, China
bdd = Hupeh, Arc 19A, China
bde = Hupeh, Arc 20 and 21, China
bdf = Hupeh Local, China
bdg = Husdalen, Hopen Island
bdh = Husvik Astro, Antarctica
bdi = Hu-tzu-shan, Taiwan
bdk = I-chang Astro (South Base), China
bdl = I-chou Astro, China
bdm = I-Hsien Astro, China
bdn = I-shui Astro, China
bdo = Iben Astro 1947, Caroline Islands
bdp = Ikateq Astro 1945
bdq = Îlet à Cochons Flagstaff, Guadeloupe, Lesser Antilles
bdr = Iligan, Mindanao, Philippines
bds = Iloiolo, Panay, Philippines
bdt = Iman 1914, USSR
bea = Indian Datum, India
beb = Indian Datum 1916, India
bec = Indian Datum 1960, India
bed = Ireland 1965
bee = Irkutsk, USSR
bef = Ishigaki Shima Astro, Ryukyu Islands
beg = Ishpushta, Afghanistan
beh = Isla del Coco Astro
bei = Ists 973 Astro 1969
bej = Isolated Hill, South Island, New Zealand
bek = Itaembe-Mini, Argentina
bel = Italian Triang 1913-1914
bem = Itarare N Base Itajuba, Brazil
ben = Iwo Jima, Bonin Islands
beo = Jabal and Dukhan, Bahrain Island
bep = Jaragua, Brazil
beq = Jazirat Yaz (RAF Petrol Tank), Sir Bani Yas Island, Trucial States
ber = Jesselton, North Borneo, Malaysia
bes = Jesuit College Flagstaff, Belize, British Honduras
bet = Jo-ch'i Astro, China
bfa = Johnston Island 1961 Datum, Johnston Island
bfb = Johnston Origin, Northern Territory Australia
bfc = Juing-ch'eng Astro, China
bfd = Jung-shui Astro, China
bfe = Jurinet-2, Greater Antilles
bff = Kaarappu Triangulation Point F-6 (1918), Ant Atoll, Caroline Islands
bfg = Kalianpur Datum, Pakistan/India
bfh = Kalianpur Hill Station (National Geodetic Origin), India/Pakistan
bfi = Kandalaksha-St John S Church, USSR
bfj = Kandawala Datum, Ceylon
bfk = Kandilli, Turkey
bfl = Kantara, Cyprus
bfm = Kapingamarangi Astronomic Station No.3 (1951), Kapingamarangi Atoll, Caroline Islands
bfn = Karamea, South Island, New Zealand
bfo = Karpinsk, USSR
bfp = Kasalinsk, USSR
bfq = Kashizan Datum, Taiwan
bfr = Katanga, Zaire
bfs = Kauai
bft = Kavieng Astro, New Ireland, Bismarck Archipelago
bga = KCS2, Sierra Leone
bgb = Kenya Colony, Uganda (Rainsford 1948) Datum
bgc = Kertau, Malaysia
bgd = Kertau 1948 revised, Malaysia
bge = Kertau (Everest) Datum, Malaysia
bgf = Kertau (Repsold System) Malaysia (West)
bgg = Kesztej (Marosvasarhely), Hungary
bgh = Khao Luang, Thailand
bgi = Khartoum, Sudan
bgj = Kieta Astro, Bougainville, Solomon Islands
bgk = Kili Island Observation Spot, Kili Island, Marshall Islands
bgl = Kloster Ivaniæ, Yugoslavia
bgm = Kobukutei, Pescadores
bgn = Koepang, Timor, Indonesia
bgo = Koh-I-Malik Siah, Pakistan
bgp = Kogo, Rio Muni, Spanish Guinea
bgq = Koiaris Astro 1947, Bougainville, Solomon Islands
bgr = Koiterangi, South Island, New Zealand
bgs = Korla Astro, China
bgt = Koror Observation Point, Koror Island, Caroline Islands
bha = Kos Forst (Coo-castello), Kos, Dodecanese, Greece
Koshizan see Hu-tzu-shan (bdi)
bhb = Kostroma, USSR
bhc = Kowloon Observatory, Hong Kong
bhd = K'uei'tao, China
bhe = Ku-yuan, China
bhf = Kuan-hsiang Shan, China
bhg = Kuching Survey Origin, Sarawak, Malaysia
bhh = Kulusuk, Greenland
bhi = Kuo'hsien Astro, China
bhj = Kusaie Astronomic Station 3 (1951), Kusaie Island, Caroline Islands
bhk = Kutaka, Okinawa, Ryukyu Islands
bhl = Kuybyshev-Orsk, USSR
bhm = Kwajalein Astronomical Position US Navy 1944, Marshall Islands
bhn = Kwangsi Province, China
bho = Kwangtung, China
bhp = Kweiyang, China
bhq = Kyushu West, Japan
bhr = Kyustendil, Bulgaria
bhs = La Canoa
bht = Lago Belgrano SB, Argentina
bia = Lago Palena SB, Argentina
bib = Lai-yang Astro, China
bic = Lamotrek Astronomic Station (1951), Lamotrek Atoll, Caroline Islands
bid = Latvian, Latvia
bie = Le Pouce, Mauritius
bif = Lee No 7 (Butler 1911-1913), Guam, Mariana Islands
big = Legaspi, Luzon, Philippines
bih = Leigon Pillar (GCS no 121), Accra, Ghana
bii = Lemuta, Samoa Islands
bij = Leninsk (Kol Chugino), USSR
bik = Leros (Lero-Pandelli), Dodecanese
bil = Leste NE Base, Brazil
bim = Leuen Anchorage Observation Spot, Namu Atoll, Marshall Islands
bin = Lib Island NW Edge, Marshall Islands
bio = Li-ching Astro, China
bip = Li-shih Astro, China
biq = Liberia 1964 (Roberts Field Astro)
bir = Liberian Government, Liberia
bis = Limones Cuba, Greater Antilles
bit = Lin-ch'ing Astro, China
bja = Lindis Peak, South Island, New Zealand
bjb = Line Island Astro, Line Islands
bjc = Lisbon, (Castelo Di São Jorge), Portugal
bjd = Listvenichnoye, USSR
bje = Little San Salvador Light, Bahamas
bjf = Liu-k'o'tao, China
bjg = Lobito Base NE End, Angola
bjh = Lochmaben Astronomical Station, Tasmania
bji = Loma Quintana, Venezuela
Lommel Signal see Belgian 1950 System (ahr)
Longitude, Christmas Island see Beacon, Christmas Island (ahp)
bjj = Longitude, Mariana Islands
bjk = Lourenço Marques Observatory, Mozambique
bjl = Losap Astronomic Station B3 (1924), Losap Atoll, Caroline Islands
bjm = Losuia, Kiriwina Island, Caroline Islands
bjn = Lotj Island Observation Spot, Lae Atoll, Marshall Islands
bjo = Loudima, Congo (Brazzaville)
bjp = Lu-chi Astro, China
bjq = Le-feng Base East End, China
bjr = Lu-kou'ch lao Astro, China
bjs = Lung'i'ou Astro, China
bjt = Lung-kuan Astro, China
bka = Luzon Datum, Philippines
bkb = Maccio Air Navigation Light (IAGS), Brazil
bkc = Macuco, Brazil
bkd = Madagascar Datum, Madagascar
bke = Madeira Archipelago
bkf = Medeira, Brazil
bkg = Madrid 1853, Spain
bkh = Magreva Island Base North End, Gambier Island, Tuamotu Archipelago
bki = Mahon 1928, Argentina
bkj = Mai, Lucipari Island, Indonesia
bkk = Majuro Astronomic Station 1944, Marshall Islands
bkl = Malayan Revised Datum, Malaysia (West)
bkm = Malta Datum, Malta Island
bkn = Man Island Light, Bahamas
bko = Manchurian Principal System, Manchuria
bkp = Mandinga Astro, Ecuador
bkq = Maniagassa Island Astro Pier (1944), Mariana Islands
bkr = Manira
bks = Manokwari, West Irian
bkt = Mañon (Old), Argentina
bla = Manton Triangulation Point F2 (1918), Senyavin Island, Caroline Islands
blb = Manton Observation Spot, Molik Atoll, Caroline Islands
blc = Marcus Astro 1961
bld = Marcus Astro 1965
ble = Marosvasarhely, Hungary
blf = Martín García, Argentina
blg = Masira Island Astro, 1958
blh = Massoua, (Eritrea), Ethiopia
bli = Matsu Datum, Matsu Island
blj = Matsuwa Astro, Kuril Islands
blk = Matupi Astro 1947, New Britain, Bismark Archipelago
bll = Maug 1950 71st Esld, Maug Island, Mariana Islands
blm = Maurice Datum, Australia
bln = Mayo de Campo, Argentina
blo = McKean Island, Phoenix Islands
blp = McMurdo Camp Area, Antarctica
blq = Medinella 29th Engr Astro (1961), Mariana Islands
blr = Mejit Astronomic Station B1 (1919), Mejit Island, Marshall Islands
bls = Melbourne Observatory, Victoria, Australia
blt = Mellu Island Triangulation Station, Marshall Islands
bma = Mellu Island Triangulation Station and Ringelap Island Observation Spot, Marshall Islands
bmb = Merchich, Morocco
bmc = Mercury (Fischer 1960) Datum
bmd = Meºedag, Turkey
bme = Mi-shan I, Manchuria
bmf = Mi-shan II, Manchuria
bmg = Midway Astro 1961
bmh = Miguelete N, Argentina
bmi = Mildura Aerodrome, Victoria, Australia
bmj = Militar, Argentina
bmk = Minna, Nigeria
bml = Misamis, Mindanao, Philippines
bmm = Misurata Marina, Libya
bmn = Miyako Jima Astro, Ryukyu Islands
bmo = Moçãmedes, Angola
bmp = Modified Mercury (Fischer 1968)
bmq = Mogadiscio, Somalia
bmr = Molinduko, Kenya
bms = Mombassa, Kenya
bmt = Monavatu, Viti Levu Island, Fiji Islands
bna = Montjong Lowe Datum, Sulawesi, Indonesia
bnb = Monte das Mocas Datum, Faial and Terceira Islands, Azores
Monte Mario Datum, Italy see Monte Mario 1940 (bnd)
bnc = Monte Mario 1875, Rome, Italy
bnd = Monte Mario 1940, Rome, Italy
Monte Verde 1951, Cape Verde Islands
bne = Morro de Papagaio, Principe Island
bnf = Morro de Santo Antonio, Brazil
bng = Moscow University Obs, USSR
bnh = Mösting "A" 1960, Moon
bni = Moulin Jarry, Guadeloupe, Lesser Antilles
bnj = Mount Rapid, Fleurien Peninsula, South Australia
bnk = Mozambique, Mozambique
bnl = Mt Campbell, Australia
bnm = Mt Cook, South Island, New Zealand
bnn = Mt Eden, North Island, New Zealand
bno = Mt Eleanor, South Island, New Zealand
bnp = Mt Horrible, South Island, New Zealand
bnq = Mt Nicholas, South Island, New Zealand
bnr = Mt Pleasant, South Island, New Zealand
bns = Mt Robertson, Malaysia (East)
bnt = Mt Stewart, North Island, New Zealand
boa = Mt York, South Island, New Zealand
bob = Murilo Astronomic Station No. 19 (1951), Murilo Atoll, Caroline Islands
boc = M79, Iraq
bod = Nahrwan Datum, Iraq
boe = Namoluk Astronomic Station (1924), Namoluk Atoll, Caroline Islands
bof = Nan-ao'tao Astro, China
bog = Nanking Astro, China
boh = Nanking Datum 1960, China
boi = Naparima Datum, Trinidad and Tobago
New (1960) Arc see Arc (of the 30th Meridian) 1960 Datum (adi)
boj = New British, Great Britain
bok = New Bulgarian, Bulgaria
bol = New Danish System (Buddings Station I 620, Copenhagen) Denmark
bom = New French, France
bon = New Egyptian, Egypt (United Arab Republic)
boo = New Lighthouse, Tripoli, Libya
bop = New Pillar, Tanzania
boq = New Sahara Datum 1959
bor = New South Wales, Australia
bos = New Sydney Datum, Australia
bot = Ngatik Astronomic Station No. 8 (1951), Ngatik Atoll, Caroline Islands
bpa = Ngulu Astronomic Station No. 1 (1951), Ngulu Atoll, Caroline Islands
bpb = Nicolai, Copenhagen, Denmark
bpc = Nigeria Datum, Nigeria
bpd = Nikolayev, USSR
bpe = Nikolskoe Astro 1929
bpf = Niu-chiao'shan Astro, China
bpg = NMA/S/21 Azimuth Island, Antarctica
bph = NMA/S/39 Wilkes Station, Antarctica
bpi = Nomoi Astro, Nomoi Atoll, Caroline Islands
bpj = Nordlaguna, Jan Mayen Island
bpk = North American Datum
bpl = North American Datum 1913
bpm = North American Datum 1927
bpn = North Astro 1947
bpo = North Base Astro, Antarctica
bpp = North Point Entrance Island, Makin Atoll, Gilbert Islands
bpq = North Sahara Datum 1959
bpr = Northwest Point Astro, Bahamas
bps = Northwest Point Light, Bahamas
bpt = Noumea, New Caledonia
bqa = Numbuiloa, Vanau Levu Island, Fiji Islands
bqb = Oakam Yof Base, South End, Senegal
bqc = Observatoire d'Uccle, Belgium
bqd = Observatorio Astronomica de la Quinta Normal, Santiago, Chile
bqe = Observatorio Astronomico de Madrid, Spain
bqf = Observatorio da Comissão, Brazil
bqg = Observatorio National do Rio De Janeiro, Brazil
bqh = Observatorul Astronomic Militar Din Bucuresti (Dealul Pisc), Rumania
bqi = Observation Point, South Island, New Zealand
bqj = Observation Spot Bairiki Island, Tarawa Atoll, Gilbert Islands
bqk = Observation Spot, South Island, New Zealand
bql = Observation Spot Government Office, Kariatebike, Abemama Island, Gilbert Islands
bqm = Observation Spot (Taruia Pass) Tongareva Island, Cook Islands
bqn = Ocotopeque, Guatemala
bqo = Okinawa Datum 1927, Okinawa Island, Ryukyu Islands
bqr = Okino-daito-shima Astro, Daito Islands, Ryukyu Islands
bqs = Old British (Greenwich Observatory), Great Britain and Ireland
bqt = Old Egyptian, Egypt (United Arab Republic)
bra = Old Hawaiian Datum, Hawaiian Islands
brb = Old Lighthouse, Tripoli, Libya
brc = Old Sydney Datum, New South Wales, Australia
brd = Opaki, North Island, New Zealand
bre = Oranhada Astro, China
brf = Oranharaga-byo Astro, China
brg = Oranjaran-byo Astro, China
brh = Ordnance Survey of Great Britain (1936) Datum
bri = Orenburg Cossacks
brj = Ormoc, Leyte, Philippines
brk = Oroluk Astronomic Station No. 1 (1951), Oroluk Atoll, Caroline islands
brl = Orsk, USSR
brm = Osh, USSR
brn = Oslo Observatory (Old), Norway
bro = Osuihe Astro, China
brp = Padang Base West End, Sumatra, Indonesia
brq = Paga Hill (1939), New Guinea
brs = Pagan 1950 71st Esld, Pagan Island, Mariana Islands
brt = Pai-chieh'shan Lighthouse, China
bsa = Pai-ling-miao Astro, China
bsb = Palau Astro, Caroline Islands
bsc = Palermo, Argentina
bsd = Palestine 1928, Israel/Jordan
bse = Palmer Astro
bsf = Panamá-Colón, Panama
bsg = Pandeli, Léros, Deodecanese, Greece
bsh = Panthéon, Paris, France
bsi = Pao-tou-Astro, China
bsj = Papatachi 1949, New Zealand
bsk = Papeete Astronomical Pier, Tahiti, Society Islands
bsl = Paraguari Base S End, Paraguay
bsm = Paraná, Argentina
bsn = Parapara, South Island, New Zealand
bso = Parece Vela Astronomic Point, Parece Vela (Douglas Reef)
bsp = Pency, Czechoslovkia
bsq = Pei-ching, China
bsr = Pei-king System 1954, China
bss = Pei-li Astro (1940), China
bst = Pei-ping, China
bta = Pei-ping 1954 System, China
btb = Pelarang, Kalimantan, Indonesia
btc = Pen Phare, Vietnam
btd = Pepito, Bolivia
bte = Perak, Kedah, Malaysia (West)
btf = Perth Observatory, Western Australia
btg = Perth 1899, Western Australia
bth = Pete Astro 1969, Zanzibar
bti = Phare d'Ayabele, Djibouti, French Somaliland
btj = Phare du Cap Blanc, Mauritania
btk = Phoenix Island, Phoenix Islands
btl = Pico de las Nieves, Gran Canaria, Canary Islands
btm = Pico de São Tomé, São Tomé Island
btn = Pico Norte
bto = Pidurutal Agala, Ceylon
btp = Pier Observation Spot, Fila Harbour, Efate Island, New Hebrides
btq = Pilar Astrónomico de Ponta Grossa, Brazil
btr = Pilar Astrónomico (S Paulo), Brazil
bts = Pilar de Observaciones de Puerto, Argentina
btt = Pilar do Forte, Brazil
caa = Pinder Point Light, Bahamas
cab = Pingelap Island Observation Spot, Pingelap Island, Caroline Islands
cac = Pintados SE Base, Chile
cad = P'ing-ti-ch Uan, China
cae = Pitcairn Astro 1967
caf = Plantation Point, Jervis Bay, Australian Capital Territory, Australia
cag = Point A Subcommission 5 Boundary Survey, Chile-Argentina
cah = Ponape Astro 1962
cai = Port Etienne, Mauritania
caj = Port Huon Hospital Bay Observation Spot, Tasmania
cak = Port Langdon South Base, Groote Eylandt, Northern Territory, Australia
cal = Port Lockroy
cam = Porto Santo Observatory, Madeira Islands
can = Poto Astro, Bolivia
cao = Potsdam (Helmertturm), Germany
cap = Poulo Condore (Con Son), Vietnam
caq = Pronto Socorro, Brazil
car = Provisional Chilean 1963
cas = Provisional National, Australia
cat = Provisional South American 1956 Datum
cba = Puerto Rico Datum, Puerto Rico, Greater Antilles
cbb = Pulap Astronomic Station No. B1 (1920), Pulap Atoll, Caroline Islands
cbc = Pulkovo 1913 System, USSR
cbd = Pulkovo 1932 System, USSR
cbe = Pulkovo 1942 System, USSR
cbf = Punaavia Base North End, Tahiti, Society Islands
cbg = Puntarenas, Costa Rica
cbh = P2 Point, Ile des Petrels, Adelie Land, Antarctica
cbi = Quito Observatorio, Ecuador
cbj = Qornoq Datum, Greenland
cbk = Ramakure-Byo Astro, China
cbl = Ra usuva, Viti Levu Island, Fiji Islands
cbm = Reconnaissance Triangulation, Morocco
cbn = Red Bridge Astronomic Station, China
cbo = Residence Flagstaff, Margarava Island, Gambier Islands
cbp = Reval (Tallin), Estonia
cbq = Reykjavik, Iceland
cbr = Riga Petera Baznica (St Peter S Church, Riga) Latvia
cbs = Rikuraru (Emijwan) Island Triangulation Station and Likiep Island South Pass Reef Triangulation Station, Likiep Atoll, Marshall Islands
cbt = Rio Benito, Rio Muni, Spanish Guinea
Roma Monte Mario 1875 see Monte Mario, 1875, Rome (bnc)
Roma Monte Mario 1940 see Monte Mario, 1940, Rome (bnd)
cca = Rongelap Island Observation Spot, Marshall Islands
ccb = Rongelap 1959 Datum, Marshall Islands
ccc = Rota 1950 71 Esld, Rota Island, Mariana Islands
ccd = Royal Alfred Obsv, Mauritania
cce = Royal Government of Afghanistan (RGA)
ccf = Rube Point Observation Spot, Ebo Atoll, Marshall Islands
ccg = Rum Cay Light, Bahamas
cch = Sainte Anne I, Guadeloupe, Lesser Antilles
cci = Saipan Astro US Navy 1944, Saipan Island, Mariana Islands
ccj = Sakura-dai I, Manchuria
cck = Sakura-dai II, Manchuria
ccl = Sakura-dai III, Manchuria
ccm = Sama Base, Peru
ccn = Samana Fort, Dominican Republic, Greater Antilles
cco = Samate, Salawati Island, West Irian
ccp = Santa Maria-GS-8, Grenada, Lesser Antilles
ccq = Santa Maria Light, Bahamas
ccr = San Fernando Observatory, Spain
ccs = San Miguel Astro, Ecuador
cct = San-tsao Tao Astro, China
cda = San-ya Astro (1940), China
cdb = São Braz, São Miguel and Santa Maria, Azores
Sapper Hill, Falkland Islands use cmp
cdc = Sarigan Astronomic Station (1921), Sarigan Island, Mariana Islands
cdd = Sarigan Astro 1964, Sarigan Island, Mariana Islands
cde = Schwarzeck, South West Africa
cdf = Seba, Sawu Island, Indonesia
cdg = Selwa, Arabia
cdh = Semaphore Mast Cayenne, French Guyana
cdi = Semaphore of Noumea (1935), New Caledonia
cdj = Semporna, Malaysia (East)
cdk = Shah-ho-chen Astro, China
cdl = Shan-hai-kuan Lighthouse, China
cdm = Shang-ch'uan Tao Astro, China
cdn = Shen'hsien Astro, China
Shinkyo see Manchurian Principal System (bko)
cdo = Shumushu Astro, Kuril Islands
cdp = Shun-i, China
cdq = Siamese, Thailand
cdr = Sierra Leone Datum, Sierra Leone
cds = Signal Goeland, Mauritania
cdt = Sin-do, Manchuria
cea = Sinyum, Pahang, Malaysia (West)
ceb = Smolensk Nikolai, USSR
cec = Socotra 1957
ced = Soke, Turkey
cee = Soldano Rock, Venezuela
cef = Sommet Tano, New Caledonia
ceg = South African, South Africa
ceh = South American 1969
cei = South Asia Datum
cej = South Point Light, Bahamas
cek = South Station, Tongatobu,Tonga Islands
cel = South Sumatra, Indonesia
cem = Southeast Island, Seychelles
cen = Spitzbergen
ceo = Stalingrad-Kasan, USSR
cep = Stockholm, Sweden
ceq = Stocking Island Astro, Bahamas
cer = Stringer Trig, Papua
ces = St Helena 1906
cet = St Louis, Senegal
cfa = St Matthew Astronomical Datum, Alaska
cfb = St Paul-St George 1944 Datum, Pribilof Islands, Alaska
cfc = St Petersburg, USSR
cfd = St Stephen S Turm, Vienna, Austria
cfe = Sui'hsien Astro, China
cff = Sui-yang, China
cfg = Sul SW Base, Brazil
cfh = Sumner Astro 1944, Caroline Islands
cfi = Survey Beacon SLS 28/57/107, Sierra Leone
cfj = Sverdlovsk, Vozneseniya Cathedral, USSR
cfk = Svobodnyy 1935 System, USSR
cfl = Sweetings Cay Light, Bahamas
cfm = Sydney Island, Phoenix Islands
cfn = Sydney Observatory, New South Wales, Australia
cfo = Szechwan, China
cfp = Table Hill, New Zealand
cfq = Ta-ch'ang-t'u Shan Astro, China
cfr = Ta-sha-kang, China
cfs = Tacloban, Leyte, Philippines
cft = Tai-lai I, Manchuria
cga = Tai-lai II, Manchuria
cgb = Tai-lai III, Manchuria
cgc = Tai-lai IV, Manchuria
cgd = Tai-lao VI, Manchuria
cge = Tai-ping-chiao, Manchuria
cgf = Taira Datum, Miyaka-Jima, Ryukyu Islands
cgg = Takowaka Island Observation Spot, Marshall Islands
cgh = Talalabad, Afghanistan
cgi = Tananarive Observatory Datum, Madagascar
cgk = Tanapag Harbor, Saipan, Mariana Islands
cgl = Tang-yang Astro, China
cgm = Tao-hua-pao Astro, China
cgn = Taongi Astro 1952
cgo = Taroa island Triangulation Station, Maloelap Atoll, Marshall Islands
cgp = Tashkent 1875 System, USSR
cgq = TCI, Trucial States
cgr = Te-an Astro, China
cgs = Tebun-Byo Astro, China
cgt = Termez Astro, USSR
cha = Ternate, Moluccas, Indonesia
chb = Testigos Astro, Venezuela
chc = Tete, Mozambique
chd = TG Soeadja (Hollandia), West Irian
che = Thorshavn, Faeroes
chf = Tien-wen-tien Astro, China
chg = Tiflis, USSR
chh = Timbalai 1936 Datum, Brunei, Borneo
chi = Timbalai 1938 Datum, Brunei, Borneo
chj = Timbalai 1948 Datum, Brunei, Borneo
chk = Tinian Control 1950, Mariana Islands
chl = Tiranë, Albania
chm = Tobruk, Libya
chn = T'o-k'o-t'o Astro, China
cho = Tokowa Island Observation Spot, Mili Atoll, Marshall Islands
chp = Tokyo Astronomical Observatory (Old) 1918, Japan
Tokyo Control see Approximate Tokyo Datum (ade)
Tokyo Control, Sakhalin see Approximate Tokyo Datum (ade)
chq = Tokyo Datum, Japan
Tokyo Observatory, Kuril Islands see Approximate Tokyo Datum (ade)
chr = To-lun, China
chs = Tomor 1961
cht = Toro, Uganda
cia = Towe Island Astro, Galapagos Islands, Ecuador
cib = Townsville, Queensland, Australia
cic = Transmit of Venus Station, Moqattam Hills, Cairo, Egypt (United Arab Republic)
cid = Tres Barras Extremo NE da Base, Brazil
cie = Trig A (North Taieri Meridional Circuit), South Island, New Zealand
cif = Triangulation Pointe Noire 1950-57, Congo, Brazzaville
cig = Trig A (Hawke S Bay Meridional Circuit), North Island, New Zealand
cih = Trig A (Poverty Bay Meridional Circuit), North Island, New Zealand
cii = Trig E, South Island, New Zealand
cij = Trig E Maketu, North Island, New Zealand
cik = Trinidad Trigonometrical Survey Datum, Trinidad, Lesser Antilles
cil = Tripoli (New Lighthouse), Libya
cim = Truk Astro 1951, Truk Island, Caroline Islands
cin = Ts'ao'hsien Astro, China
cio = Tshinsenda Base NW End (Point A), Zaire
cip = Tsingtao Observatory, China
ciq = Tsitsihar (Lungkiang), Manchuria
cir = Tsun-hua Astro, China
cis = T'ung-chou, China
cit = T'ung-shan Astro (East Base), China
cja = Tu-lung, China
cjb = Tuhirangi, North Island, New Zealand
cjc = Tung-sha'tao Astro, China
cjd = Tung-shih Astro, China
cje = Tunheim, Bear Island
cjf = Tu-shih'kou Astro, China
cjg = Tutuila Astro 1962, Tutuila Islands, Samoa Islands
cjh = Ubajay (Old), Argentina
cji = Ubajay 1928, Argentina
cjk = Ujelang Island Observation Spot, Marshall Islands
cjl = Ulul Astronomic Station (1916) Namonuito Atoll, Caroline Islands
cjm = Umm Er Rus, Arabia
cjn = Unalaska Datum, Aleutian Islands, Alaska
cjo = Uruppu Astro, Kuril Islands
cjp = US Naval Surveys 1944, Gilbert Islands
cjq = US Standard Datum, USA
cjr = Usho Chart 5416 (1945), Minto Reef, Caroline Islands
cjs = Uspallata NE Base, Argentina
cjt = Vaitape Flatstaff, Borabora Island, Society Islands
cka = Val de Serra, Brazil
ckb = Valdez Datum, Alaska
ckc = Valentine, Western Australia
ckd = Valle Huemules EG, Argentina
cke = Vanguard Datum, USA
ckf = Varesmae (System 1937), Estonia
ckg = Vi Astro, St Vincent, Lesser Antilles
ckh = Victoria Lighthouse, Seychelles
cki = Victoria Peak, China
ckj = Vieux Fort, St Lucia, Lesser Antilles
ckk = Vigan, Luzon, Philippines
ckl = Villa Cisneros, Spanish Sahara
ckm = Voirol, Algeria
ckn = Volga River Triangulation
cko = Wabutima, Kiriwina Island, Trobriand Islands
ckp = Waigama Misool Flagstaff, West Irian
ckq = Wake Island Astro 1952
ckr = Wenang, Sulawesi, Indonesia
cks = West Base Astro, China
ckt = West Entrance Observation Spot, Canton Island, Phoenix Islands
cla = Weti, Pemba Island
clb = White Sands Datum, USA
clc = White Sea, USSR
cld = World Geodetic System 1960
cle = World Geodetic System 1966
clf = World Geodetic System 1972
clg = Wotje Island Observation Spot, Wotje Atoll, Marshall Islands
clh = Wu-ch'uan Astro, China
cli = Wu-lan-hua, China
clj = Wu-t'ai Astro, China
clk = XXIII Aratunga, Cook Islands
cll = Yacare, Uruguay
clm = Yang-hsien Astro, China
cln = Yang-lou-t Ung Astro, China
clo = Yang-p'u-chiang Astro, China
clp = Yang yuan Astro, China
clq = Yavin B, Argentina
clr = Yea Yama, Ryukyu Islands
cls = Yekaterinograd, USSR
clt = Yenikale, USSR
cma = Yenisey, USSR
cmb = Yeuh-chou Astro, China
cmc = Yof Astro 1967
cmd = Yu'hsien Astro, China
cme = Yu-shan Astro, China
cmf = Yukon Datum, Alaska/Yukon Territory
cmg = Yung-ch'eng Astro, China
cmh = Yung-yuan-Chiao, Manchuria
cmi = Yur Yev, USSR
cmj = Zagli, USSR
cmk = Zamboanga, Mindanao, Philippines
cml = Zapara Island, Venezuela
cmm = Zigida Astro, Liberia
cmn = Zvirblaiciai, Lithuania
cmo = Afgooye, Somalia
cmp = Sapper Hill, Falkland Islands
taa = Astronomically determined
Independent astronomic datum see Local (tab)
tab = Local
tac = Local astro
tad = No datum
tae = Other known horizontal datum
zzz = Other known horizontal datum

131$c: Grid and Referencing System Codes

The list of grid and referencing system codes is in two parts. The first part consists of codes for mathematically-constructed grids (i.e. based on the graticule); the second part consists of codes for referencing systems that are either not mathematically-constructed (and therefore are arbitrary) or are systems used to enhance the graticule for reference purposes, using alpha and/or numeric notation.
aa = Aden Zone
ab = Afghanistan Gauss-Krueger Grid
Africa Belt, East see East Africa Belt (co)
Africa Zone, Northwest see Northwest Africa Zone (kj)
Afrique Equatoriale Française (AEF) Fuseau see French Equatorial Africa Grid (dj)
ac = Alabama Coordinate System
ad = Alaska Coordinate System
ae = Albania Bonne Grid
Algeria System Lambert see Algeria Zone (af)
af = Algeria Zone See also North Algeria Zone (kb), South Algeria Zone (mk)
ag = American Somoa Coordinate System
ah = Argentine Gauss-Krueger Conformal Grid
ai = Arizona Coordinate System
aj = Arkansas Coordinate System
al = Australia Belts
am = Australian Map Grid
an = Austria Gauss-Krueger Grid
ao = Azores Gauss Conformal Grid
ap = Azores Gauss Zone
aq = Baku 1927 Coordinate System
ar = Bavaria Soldner Coordinate System
as = Belgium Bonne Grid
at = Belgium Lambert Grid
ba = Borneo Rectified Skew Orthomorphic Grid
bb = Brazil Gauss Conformal Grid
bc = Brazil Cassini Grid (10km letters)
bd = British Cassini Grid (100km letters)
British Guiana Transverse Mercator Grid see Guyana Transverse Mercator Grid (ek)
British Modified Grid, Canada see Canada British Modified Grid (bh)
British National Grid see National Grid of Britain [metres or yards] (ht, ja)
be = British West Indies Grid
bf = Bulgaria Grauss-Krueger
bg = California Coordinate System
Cambodia Bonne Grid see French Indochina Bonne Grid (dl)
bh = Canada British Modified Grid
bi = Canary Islands (Spanish) Lambert Grid
bj = Canary Islands Zone
bk = Cape Verde Islands Zone
bl = Cape Verde Peninsula Grid
bm = Caspian Zone
Cassini War Office Grid see British Cassini Grid (bc) or (bd)
bn = Caucasus Zone
bo = Ceylon Belt
bp = Chile Gauss Conformal Grid
bq = China Belt
br = China Lambert Grid
bs = Colombia Gauss Conformal Grid
bt = Colorado Coordinate System
ca = Connecticut Coordinate System
Corsica Lambert Grid see French Lambert Grid (dm)
cb = Costa Rica Lambert Grid
cc = Crete Zone
cd = Crimea Grid
ce = Cuba Lambert Grid
cf = Cyprus Grid
cg = Czechoslovak Military Grid
ch = Czechoslovak Uniform Cadastral Coordinate System
ci = Dahomey Belt
Dakar Local Grid see Cape Verde Peninsula Grid (bl)
cj = Danube Zone
ck = Delaware Coordinate System
cl = Denmark General Staff Grid
cm = Denmark Geodetic Institute System 1934
Deutsches Heeresgitter (DHG) see German Army Grid (dt)
Deutsches Reichsgitter (DRG) see German Gauss-Krueger Grid (ea)
cn = Dominican Lambert Grid
co = East Africa Belt
cp = Egypt Gauss Conformal Grid
cq = Egypt Purple Belt
cr = Egypt Red Belt
cs = Egypt 35 degree belt
ct = El Salvador Lambert Grid
da = English Belt
English Cessini Grid see British Cassini Grid (bd)
English National Grid see National Grid of Great Britain [metres or yards] (ht, ja)
db = Estonian Grid
dc = Fernando Po Gauss Grid
dd = Fiji Grid
de = Finland Gauss-Krueger Grid
df = Florida Coordinate System
dg = Formosa (Taiwan) Gauss-Schreiber Coordinate System
dh = Franz Joseph Land Zone
di = French Bonne Grid
dj = French Equatorial Africa Grid
dk = French Guiana Gauss Grid
dl = French Indochina Bonne Grid
dm = French Lambert Zone
dn = French Somaliland Gauss-Laborde Grid
do = Gabon Belt
dp = Gabon Gauss Conformal Grid
dq = Guadeloupe Gauss-Laborde Grid
dr = Gauss-Krueger Grid
ds = Georgia Coordinate System
dt = German Army Grid (DHG)
ea = German Gauss-Krueger Grid
eb = Ghana National Grid
Gold Coast Colony Grid see Ghana National Grid (eb)
ec = Greece Azimuthal Grid
ed = Greece Bonne Grid
ee = Greece Conical Mecklenburg Coordinates
ef = Greece Conical Mecklenburg Coordinates (New Numbering)
eg = Greenland and Lambert Grid
eh = Guam Coordinate System
ei = Gautemala Lambert Grid
ej = Guinea Zone
ek = Guyana Transverse Mercator Grid
el = Haiti Lambert Grid
em = Hawaii Coordinate System
en = Hawaiian Grid
eo = Honduras Lambert Grid
ep = Hong Kong Colony Grid
eq = Hong Kong New System Cassini Grid
er = Hungary Stereographic Grid
es = Iberian Peninsula Zone
et = Iceland New Lambert Grid
fa = Iceland Zone
fb = Idaho Coordinate System
fc = Illinois Coordinate System
fd = India Zone (Unspecified)
India Zones, (specified) see Indias ri-rq
Indochina Bonne Grid see French Indochina Bonne Grid (dl)
fe = Indonesia Mercator Grid
ff = Indonesia Polyhedric Grid
fg = Iowa Coordinate System
fh = Iran National Grid
fi = Iraq National Grid
fj = Iraq Zone
fk = Irish Cassini Grid
fl = Irish Transverse Mercator Grid
fm = Italy Gauss-Boaga Grid
fn = Italy Zone See also North Italy Zone (kc), South Italy Zone (mo)
fo = Ivory Coast Azimuthal Grid
fp = Ivory Coast Belt
fq = Jamaica Foot Grid
fr = Japan Plane-Rectangular Coordinate System
fs = Japan Gauss-Schreiber Grid
ft = Johore Grid
ga = Kansas Coordinate System
gb = Katanga Grid
gc = Kentucky Coordinate System
gd = Kenya Colony Grid
ge = Korea Gauss-Schreiber Coordinate System
gf = Kwangsi Province Grid
gg = Kwantung Province Grid
gh = Lambert Conformal Conic Grid
Laos Bonne Grid see French Indochina Bonne Grid (dl)
gi = Latvia Coordinate System
gj = Levant Stereographic Grid
gk = Levant Zone
gl = Liberia Rectified Skew Orthomorphic Grid
gm = Libya Zone
Libya Zone, South see South Libya Zone (mp)
gn = Lithuania Gauss-Krueger Grid
go = Louisiana Coordinate System
gp = Luxembourg Gauss-Krueger Grid
gq = Madagascar Grid
gr = Madeira Zone
gs = Maine Coordinate System
gt = Malaya Grid
Malaya Northern Grid see Northern Malaya Grid (ki)
ha = Malaya Rectified Skew Orthomorphic (metre) Grid
hb = Malaya Rectified Skew Orthomorphic (yard) Grid
hc = Maldive-Chagos Belt
hd = Malta Belt
Maroc System Lambert see Morocco Zone (hq) 
he = Martinique Gauss Grid
hf = Maryland Coordinate System
hg = Massachusetts Coordinate System
hh = Mauritius Zone
hi = Mecca-Muscat Zone
hj = Mediterranean Zone
hk = Mexican Lambert Grid
hl = Michigan Coordinate System
hm = Minnesota Coordinate System
hn = Mississippi Coordinate System
ho = Missouri Coordinate System
hp = Montana Coordinate System
hq = Morocco Zone See also North Morocco Zone (ke), South Morocco Zone (mq)
hr = Mozambique Lambert Grid
hs = Mozambique Polyconic Grid
ht = National Grid of Great Britain (metres)
ja = National Grid of Great Britain (yards)
jb = Nebraska Coordinate System
NEI Equatorial Zone British Metric Grid see Netherlands East Indies Equatorial Zone British Metric Grid (jc)
NEI Equatorial Zone US Yard Grid see Netherlands East Indies Equatorial Zone US Yard Grid (jd)
NEI Southern Zone see Netherlands East Indies Southern Zone (je)
jc = Netherlands East Indies Equatorial Zone British Metric Grid
jd = Netherlands East Indies Equatorial Zone US Yard Grid
je = Netherlands East Indies Southern Zone
jf = Netherlands Stereographic Grid (New Numbering)
jg = Netherlands Stereographic Grid (Old Numbering)
jh = Nevada Coordinate System
New Guinea Zone, Southern see Southern New Guinea Zone (na)
New Portugal Bonne Grid see Portugal Bonne Grid, New (lg)
ji = New Sierra Leone Colony Grid
jj = New York Coordinate System
jk = New Zealand Belt
jl = New Zealand (North Island) Belt
jm = New Zealand (South Island) Belt
jn = New Zealand National Grid
jo = Nicaragua Lambert Grid
jp = Niger Belt
jq = Niger Zone
jr = Nigeria Colony Belt
js = Nord de Guerre Zone
jt = North Carolina Coordinate System
ka = North Dakota Coordinate System
kb = North Algeria Zone
kc = North Italy Zone
kd = North Korean Gauss-Krueger Grid
ke = North Morocco Zone
kf = North Sahara Zone
kg = North Tunisia Zone
kh = Northern European Zone
ki = Northern Malaya Grid
kj = Northwest Africa Zone
kk = Norway Gauss-Krueger Grid
kl = Ohio Coordinate System
km = Oklahoma Coordinate System
Old Portugal Bonne Grid see Portugal Bonne Grid, Old
kn = Oregon Coordinate System
ko = Palestine Belt
kp = Palestine Cassini Grid see Palestine Civil Grid (kp)
kq = Palestine Civil Grid (Cassini)
kr = Panama Lambert Grid
ks = Paraquay Gauss-Krueger Grid
kt = Peiping Coordinate System of 1954
la = Pennsylvania Coordinate System
lb = Peru Polyconic Grid
Philippine Grid see Philippine Polyconic Grid (ld)
lc = Philippine Plane Coordinate System
ld = Philippine Polyconic Grid
Philippine Zone see Philippine Polyconic Grid
le = Poland Gauss-Krueger Grid
lf = Poland Quasi-Stereographic Grid
Poland Stereographic Grid see Poland Quasi-Stereographic Grid (lf)
lg = Portugal Bonne Grid, New
lh = Portugal Gauss Grid
li = Puerto Rico Coordinate System
lj = Puerto Rico Lambert Grid
lk = Pulkovo Coordinate System of 1932
Pulkoco Coordinate System of 1942 see Soviet Coordinate System of 1942 (nb)
ll = Qatar Grid
lm = Qatar Peninsula Grid
ln = Réunion Gauss Grid
lo = Rhode Island Coordinate System
lp = Rumania Bonne Grid
lq = Rumania Lambert-Cholesky Grid
lr = Rumania Stereographic Grid
ls = Russian Belts
lt = Sahara Zone See also North Sahara Zone (kf), South Sahara Zone (mr)
ma = Sarawak Grid
mb = Sarawak Belt
mc = Seychelles Belt
md = Sirte (Libya) Lambert Grid
me = South Africa Belts (Unspecified Unit of Measurement) - for Republic of South Africa use South Africa Coordinate System (mj)
mf = South Africa Belts (metres) - for Republic of South Africa use South Africa Coordinate System (mj)
mg = South Africa Belts (yards) - for Rep of South Africa use South Africa Coordinate System (mj)
mh = South Africa Belts (Cape Feet) - for Republic of South Africa use South Africa Coordinate System (mj)
mi = South Africa Belts (English feet) - for Republic of South Africa use South Africa Coordinate System (mj)
mj = South Africa Coordinate System (Republic of South Africa)
mk = South Algeria Zone
ml = South Carolina Coordinate System
mm = South Dakota Coordinate System
mn = South Georgia Lambert Grid
mo = South Italy Zone
mp = South Libya Zone
mq = South Morocco Zone
mr = South Sahara Zone
ms = South Syria Zone
mt = South Tunisia Zone
Southern Malaya Grid see Johore Grid (ft)
na = Southern New Guinea Zone
Soviet Coordinate System of 1932 see Pulkovo Coordinate System of 1932 (lk)
nb = Soviet Coordinate System of 1942
nc = Spain Lambert Grid
nd = Spanish North-Morocco Lambert Grid
ne = Spanish Sahara Grid
nf = Spitzbergen Zone
Standard South African Grid see South Africa Coordinate System (mj)
Sud Syrie System Lambert see South Syria Lambert Zone
ng = Svalbard Gauss-Krueger Grid
nh = Svobodny 1935 Coordinate System
ni = Sweden Gauss-Hanover Grid
nj = Switzerland Bonne Grid
nk = Switzerland Conformal Oblique Cylindrical Grid
Syrie System Lambert see Levant Zone (gk)
System of Geodetic Coordinate of 1942 see Soviet Coordinate System of 1942 (nb)
nl = Tanganyika Territorial Grid
nm = Tashkent 1875 Coordinate Grid
nn = Tennessee Coordinate System
no = Texas Coordinate System
np = Tobago Grid
Transverse Mercator Grid see Gauss-Krueger Grid (dr)
nq = Trinidad Grid
nr = Trucial Coast Cassini Grid
ns = Tunisia Zone See also North Tunisia Zone (kg), South Tunisia Zone (mt)
Tunisia System Lambert see Tunisia Zone (ns)
nt = Turkey Bonne Grid
pa = Turkey Gauss-Krueger Grid
pb = Uganda Cassini Coordinate System
pc = Universal Polar Stereographic Grid
pd = Universal Transverse Mercator Grid; unspecified spheroid
pe = Universal Transverse Mercator Grid; International spheroid
pf = Universal Transverse Mercator Grid; Everest Spheroid
pg = Universal Transverse Mercator Grid; Clarke 1866 spheroid
ph = Universal Transverse Mercator Grid; Clarke 1880 spheroid
pi = Universal Transverse Mercator Grid; Besel spheroid
pj = Universal Transverse Mercator Grid; Australian National spheroid
pk = Universal Transverse Mercator Grid; South American Spheroid
pl = Universal Transverse Mercator Grid; unspecified WGS spheroid
pm = Universal Transverse Mercator Grid; WGS 1966 spheroid
pn = Universal Transverse Mercator Grid; WGS 1972 spheroid
UPS Grid see Universal Polar Stereographic Grid (pc)
po = Uruguay Gauss-Krueger Grid
pq = US Polyconic Grid System
pr = Utah Coordinate System
UTM Grid see Universal Transverse Mercator Grid
ps = Venezuela Modified Lambert Grid
pt = Vermont Coordinate System
ra = Vietnam Azimuthal Grid
Vietnam Bonne Grid see French Indochina Bonne Grid (dl)
rb = Virginia Coordinate System
War Office Cassini Grid see British Consul Grid
West Indies Belt see British West Indies Grid (be)
West Malaysia Rectified Skew Orthomorphic (Metric) Grid see Malay Rectified Skew Orthomorphic [metric] Grid
rc = West Virginia Coordinate System
rd = Wisconsin Coordinate System
WOFO (War Office False Origin) Grid see British Cassini Grid (bc) or (bd)
re = World Polyconic System
rf = Wyoming Coordinate System
rg = Yugoslavia Gauss-Krueger Grid (Not reduced)
rh = Yugoslavia Reduced Gauss-Krueger Grid
ri = Yunnan Province Grid
rj = India Zone 0
rk = India Zone I
rl = India Zone IIA
rm = India Zone IIB
rn = India Zone IIIA
ro = India Zone IIIB
rp = India Zone IVA
rq = India Zone IVB

This second part comprises referencing systems that are either arbitrary referencing systems not mathematically based or are referencing systems using alpha-numeric/numeric notation that merely enhances the graticule of the map. It also includes exception codes.
ta = Air Defense Grid
tb = Air Support Grid
tc = Artillery Referencing Systems
td = Graticule enhanced by alpha-and/or numeric notations
te = Arbitrary squaring
tf = PVO Reporting Net
tg = Kristovina map referencing system
th = Unspecified German wartime referencing system
ti = Quadratmeldenetz (QMN)
tj = Luftwaffemeldenetz (LWMN)
tk = Gradmeldenetz (GMN)
tl = Jaegermeldenetz (JMN)
tm = Orangemeldenetz (OMN)
tn = Georef (World Geographic Referencing System)
to = Grid enhanced by alpha and/or numeric notations
tp = Heeresmeldenetz (HMN)
uu = Unknown grid
zz = Other known grid

131$f Vertical datum codes

NOTE: See also sequence of non-specific vertical datums starting at ta
aa = Aburatsubo, Japan
ab = Accra, Ghana
ac = Aden Mean Sea Level
ad = Aden Tidal Observatory
ae = Adjusted MSL 1891, Denmark
af = Admiralty Datum, Australia
ag = Aitutaki, Cook Islands
ah = Al Faw (Fao), Iraq
aj = Alexandria, Egypt
ak = Alicante, 1870-72, Spain
al = Almirante, Panama
am = Amherst Tidal Observatory, Burma
Amsterdam see Normal Amsterdam Piel [NAP](kr)
an = Anhwei Assumed, China
ao = Antalya, Turkey
ap = Antofagasta, Chile
Apollo 15 datum use rf
aq = Approximate Kronstadt
ar = Apra Harbor, Guam, Mariana Islands
as = Aquaba, Jordan
at = Africa (Chile), Bolivia
ba = Arica, Chile
bb = Assab, Ethiopia
bc = Auckland 1946, New Zealand
bd = Australian Capital Territory Datum Australia
be = Balboa (Canal), Panama
bf = Banana, Zaire
bg = Bangkok RR Station, Thailand
bh = Barahona, Dominican Republic
bi = Beira, Rhodesia
bj = Beirut, Lebanon
bk = Belfast, Ireland
bl = Belize, British Honduras
bm = Bench Mark 1 MSL (1949), Mariana Islands
bn = Bench Mark 4 MSL, Mariana Islands
bo = Berlin, Germany
bp = Biloxi, Mississippi, USA
bq = Bluff, 1955, New Zealand
br = Bluff, 1960, New Zealand
bs = Brisbane MSL, Queensland, Australia
bt = Broome Jetty MSL, Western Australia
ca = Brussels, Belgium
cb = Buenaventura, Colombia
cc = Burnie, Tasmania
cd = Byrd Station, Antarctica
ce = Cagliari 1956, Sardinia
cf = Cairo, Illinois, USA
cg = Callao, Peru
ch = Camarta BM, Nicobar Island
ci = Cape Town, South Africa
cj = Cape York MSL, Queensland, Australia
ck = Cartagena (Atlantic Coast), Colombia
cl = Casablanca 1922, Morocco
cm = Cascais 1881-1938, Portugal
cn = Chekiang Assumed, China
co = Chen-chiang Customs, China
cp = Chih-huang Tao, China
cq = Chihli River Commission, China
cr = Chi-lung (Kirun), Taiwan
cs = Ching Tao MSL, China
Chingkiang Customs Zero Gauge see Chen-chiang Customs (co)
da = Coatzacoalcos, Mexico
db = Colombo 1884-90, Ceylon
dc = Conakry, Guinea-Bissau
dd = Constanta, Rumania
de = Cooktown MSL, Queensland, Australia
df = Cristobal (Canal), Panama
Dairen MSL see Ta-lien (pn)
dh = Dakar, Senegal
di = Dansk N.N., Denmark
dj = Darwin MSL, Northern Territory, Australia
dk = Darwin Town Datum, Northern Territory, Australia
dl = Davao Wharf Tide Staff, Mindanao, Philippines
dm = Denison MSL, Western Australia
dn = Darby MSL, Western Australia
do = Devonport MSL, Tasmania
dp = Diego Garcia, Chagos Archipelago
dq = Disko Bugt, Greenland
dr = Djakarta, Java, Indonesia
ds = Dublin Bay, Ireland
dt = Dunedin 1958, New Zealand
ea = Durres, Albania
eb = Eden Tide Gauge, New South Wales, Australia
ec = Ensenada, Baja California, Mexico
ed = Errits, Denmark
ee = Federal Datum, Rhodesia
ef = Freetown, Sierra Leone
eg = Fremantle MSL, Western Australia
eh = Fukien Assumed, China
General Levelling, France use rg
ei = Genoa 1942, Italy
ej = Ginara, Punta Colombo, Cuba
ek = Golfito, Costa Rica
el = Ha Tien MSL, Vietnam
em = Haifa, Israel
en = Hai-lo Conservancy Commission, China
eo = Havana, Cuba
ep = Helsinki, Finland
eq = Hobart MSL, Tasmania
er = Hobson Bay LWM, Victoria, Australia
es = Honan Assumed, China
et = Honolulu, Hawaiian Islands
fa = Honto MSL, Sakhalin, USSR
fb = Haui River Commission, China
fc = Hunan Assumed, China
fd = Hupeh Assumed, China
fe = Ilha e Naos, Panama
ff = Illigan Harbour Tide Staff, Mindanao, Philippines
fg = Imbituba, Brazil
fh = Inch'on Provisional, Korea (South)
fi = Indian MSL, India
fj = Indian Spring Low Water
fk = International Great Lakes Datum 1935, Canada
fl = International Great Lakes Datum 1955, USA
fm = Ireland I. Dockyard, Bermuda Islands
fn = Irish Ordnance Datum (poolbeg), Ireland
fo = Isla de Pinos, Cuba
fp = Isle of Man Ordnances Datum, Great Britain
fq = Israel Land Survey Datum, Jaffa, Israel
fr = Jaffa, Israel
fs = Jehol Assumed, China
ft = K'an-men MSL, China
ga = Kavála, Greece
gb = Kiangsi Assumed, China
gc = Kiangsu Assumed, China
gd = Kiaochow Tsinan RR, China
ge = Kirin, China
gf = Klaipeda (Memel), Lithuania
gg = Ko Lak MSL, Thailand
gh = Kribi, Cameroon
gi = Kronshtadt (1840), USSR
gj = Kuala Trengganu MSL, Malaysia (West)
gk = Kwangsi Assumed, China
gl = Kwangtung Assumed, China
gm = Kweichow Assumed, China
gn = La Goulette, (Tunisia), Algeria
go = La Goulette, Tunisia
gp = La Guaira, Venezuela
gq = La Libertad, Ecuador
gr = La Libertad, El Salvador
gs = La Union (Cutuco), El Salvador
gt = Lagos, Nigeria
ha = Land Survey, Antarctica
hb = Launceston City Council Datum, Tasmania
hc = Lien-yun Chiang MSL, China
hd = Lisov, Czechoslovakia
Liverpool see Ordnance Datum, (Liverpool) (lf)
hh = Lo-hsing-t'a Zero Point, China
hi = Lombrum, Manus Island, Admiralty Islands
hj = Lome, Togo
hk = Low Island, Great Barrier Reef
hl = Low Water Ordinary Spring Tide, Wyndham, Western Australiahm = Luanda, Angola
hn = Lyttleton 1938, New Zealand
ho = Makassar, Sulawesi, Indonesia
hp = Mako Harbor, Pescadores
hq = Malin Head, Ireland
hr = Manila Bay MSL, Philippines
hs = Mar del Plata, Argentina
ht = Marseille 1885-96, France
ja = Matarani, Peru
jb = Matavi, Tahiti, Society Islands
jc = Maura Tide Gauge, Malaysia (East)
jd = Mawson Tide Guage, Antarctica
j = Mayaguez, Puerto Rico
jf = Mazatlan, Mexico
jg = Mediterranean, Italy (old-net)
jh = Mean Gulf Level, USA
ji = Mean High Water Sea, Antarctica
jl = Mean Sea Level Manifa Pier, Saudi Arabia
jm = Memphis, Tennessee, USA
jn = Mina Construction Datum, Kuwait
jo = Mocamedes, Angola
Molo Sartorio see Trieste, 1875 (qj)
jp = Mombasa, Kenya
jq = Monrovia, Liberia
jr = Montevideo, Uruguay
Mösting 'a' 1960 use rh
js = Moturiki 1953, New Zealand
jt = MSL Adjustment 1927, Alaska
ka = MSL Adjustment 1935, Canadian Geodetic Datum
kb = MSL Adjustment 1958, Cuba
kc = MSL Adjustment 1959, Mexico and Panama
kd = MSL Adjustment 1960, Mexico, Central America and Colombia
ke = MSL Adjustment 1961, Haiti
kf = MSL Adjustment 1962, Chile
kg = MSL Adjustment 1964, Jamaica
kh = MSL Adjustment 1966, Ecuador and Peru
ki = NADAP I, Hungary
kj = NADAP II, Hungary
kk = Naha BM, Ryukyu Islands
kl = Narvik, Norway
km = Nelson 1955, New Zealand
kn = Nevelsk (Honto), Sakhalin Newlyn see Ordnance Datum (Newlyn) (lg)
ko = NM/S/G, Antarctica
kp = Nord Norges Normal Null(NNN), Norway
kq = Norges Normal Null, Norway
kr = Normal Amsterdams Piel (NAP), Netherlands
ks = Normal Null (NN), Germany
kt = Normalhoehen (NH) System 1960. East Germany
la = Noumea MSL, New Caledonia
lb = N.S.P. 1958, Surinam
lc = Okinawa Level, Ryukyu Islands
ld = Old Huang-ho-Zero Pt. China
le = Ordnance Datum (Lerwick), Shetland Islands, Great Britain
lf = Ordnance Datum (Liverpool), Great Britain
lg = Ordnance Datum (Newlyn), 1921 Great Britain
lh = Ordnance Datum (Stornoway), Outer Hebrides, Great Britain
li = Ostende, Belgium
lj = Pafos, Cyprus
lk = Perth Headland Jetty, Western Australia
ll = Pierre du Niton, Geneva, Switzerland
lm = Pimba Railway Datum, South Australia
ln = Point Fouillole, Guadeloupe
lo = Point Lonsdale, Victoria, Australial
p = Point Noire, Congo (Brazzaville)
lq = Pont de Capitainerie de le Ville, São Tomé Island
lr = Port Adelaide MSL, South Australia
ls = Port au Prince, Haiti
lt = Port aux Basques, Newfoundland
ma = Port-aux-Français, Kerguelen Is
mb = Port Dickson, Malaysia (West)
mc = Port Moresby, Papua
md = Port of Spain, Trinidad
me = Port Royal, Jamaica
mf = Port Swettenham MSL, Malaysia (West)
mg = Port Waikato 1954, New Zealand
mh = Port Weld MSL, Malaysia (West)
mi = Port Welshpool, Victoria, Australia
mj = Portland MSL, Victoria, Australia
mk = Principal Datum, Hong Kong
ml = Puerto Armuelles, Panama
mm = Puerto Cortés 1948-51, Honduras
mn = Puerto de Cristobal, Panama
mo = Puerto Limón, Costa Rica
mp = Puerto Montt, Chile
mq = Puerto Plata, Dominican Republic
mr = Puerto Puntarenas, Costa Rica
ms = Pulau Lakei, Malaysia
mt = Punta Arenas, Chile
na = Punta Penasco, Mexico
nb = Queensland State Datum, Australia
nc = Reykjavik, Iceland
nd = San Jose, Guatemala
ne = San Juan del Sur, Nicaragua
nf = Sandy Hook, New Jersey, USA
ng = Santo Antonio 1916, Principe
nh = Santo Domingo, Dominican Republic
ni = Sea Ice, Antarctica
nj = Sea Level Datum, 1912, USA
nk = Sea Level Datum, 1929, USA
nl = Sea Level, Bonin Island
nm = Seoul, S Korea
nn = Seward-Veldez MSL, Alaska
no = Shanghai Customs, China
np = Shanghai-Nanking RR, China
nq = Shansi Assumed, China
nr = Shantung Assumed, China
ns = Shensi Assumed, China
nt = Singkiang Assumed, China
pa = Shun-ch'in Water Conservancy Bureau, China
pb = Split, Yugoslavia
pc = Station R, Ille du Maregraphe, Terre Adélie, Antarctica
pd = St James, Barbados
pe = St John, New Brunswick, Canada
pf = Stockholm, Sweden
pg = Sydney Datum MSL, New South Wales, Australia
ph = Sydney Standard, New South Wales, Australia
pi = Szechwan Assumed, China
pj = Tacloban Tide Staff, Leyte, Philippines
pk = Ta-Ku MSL, China
pl = Ta-ku Zero Point, China
pm = Talara, Peru
pn = Ta-lien, China
po = Tallin (Reval), Estonia
pp = Tamatave, Malagasy Republic
pq = Tampico, Mexico
pr = Tandjungpriak TG, Java, Indonesia
ps = Tanga, Tanzania
pt = Tararu, New Zealand
qa = Thessaloniki, Greece
qb = Tibe Gauge Observatory, Port Blair, Andaman Islands
qc = Tokyo, Japan
qd = Topoplobampo, Mexico
qe = Torres (Brazil), Paraquay
qf = Torres, Brazil
qg = Torun, Poland
qh = Townsville, Queensland, Australia
qi = Tregde, Norway
qj = Trieste 1875 (Italy) Austria, Czechoslovakia, Hungary and Yugoslavia
qk = Tripoli, Libya
Tsingtao 1956, China see Ching Tao MSL (cs)
qm = Unahi Road, New Zealand
qn = Valparaiso, Chile
qo = Varna, Bulgaria
qp = Vladivostok, USSR
qq = Walvis Bay, Southwest Africa
qr = Wanganui, New Zealand
qs = Wangpoo Conservancy Board, China
qt = Wellington 1953, New Zealand
ra = Williamstown LWM, Victoria, Australia
rb = Wonsan (Genzan), Korea
rc = Wu-sung MSL, China
rd = Wu-sung Zero Point, China
re = Yunnan Assumed, China
rf = Apollo 15 Datum, Moon
rg = General levelling, France
rh = Mosting "A" 1960, Moon

Non specific vertical datums
ta = Approximate mean sea-level                 
tb = Local
tc = Local LWM
td = Local MSL
te = Mean sea-level
tf = None
tg = Arbitrary
th = Mean low water
ti = Mean low water Springs
tj = Mean lower low water
tk = Mean lower low water Springs
tl = Lowest normal low water
tm = Lowest low water
tn = Indian Spring low water
to = at or near the level of lowest astronomical tide
uu = unknown vertical datum
zz = other known vertical datum

131$g Unit of measurement of heighting code
aa = metre 
ab = Imperial foot
ac = saszhen
ad = klafter
ae = fathom
af = Dutch foot
ag = Prussian foot                                        
ah = Austrian foot
ai = Spanish foot
aj = Bavarian foot
ak = French foot (metric)
al = French foot (imperial)
am = Roman palm
an = Portuguese palm
ao = South African foot
ap = Danish foot
aq = Norwegian foot
ar = Swedish foot
uu = unknown unit of measurement
zz = other known unit of measurement

*    

Latest Revision: May 25, 1999 Copyright © 1995-2000
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