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22 KiB

1uom_codeunit_of_meas_nameunit_of_meas_typetarget_uom_codefactor_bfactor_cremarksinformation_sourcedata_sourcerevision_datechange_iddeprecated
21024binscale920111OGPOGP2012/07/142011.1060
31025millimetrelength900111000ISO 1000.IOGP2015/11/252013.021 2015.0620
41026metres per secondlength102611Length rate.OGPIOGP2015/11/252013.021 2015.0620
51027millimetres per yearlength1026131556925445Year taken to be IUGS definition of 31556925.445 seconds; see UoM code 1029.ISO 1000.OGP2013/09/022013.021 2013.0420
61028parts per billionscale920111000000000Billion is internationally ambiguous, in different languages being 1E+9 and 1E+12. One billion taken here to be 1E+9.OGPOGP2013/05/292013.0210
71029yeartime104031556925.4451International Union of Geological Sciences (IUGS) and International Union of Pure and Applied Chemistry (IUPAC). Pure Appl. Chem., Vol. 83, No. 5, pp. 11591162, 2011.OGP2013/05/282013.0210
81030parts per billion per yearscale103613.1556925445e+16Year taken to be IUGS definition of 31556925.445 seconds; see UoM code 1029. Billion is internationally ambiguous, in different languages being 1E+9 and 1E+12. One billion taken here to be 1E+9.ISO 1000.IOGP2015/06/242013.021 2013.042 2013.067 2015.0360
91031milliarc-secondangle91013.14159265358979648000000= ((pi/180) / 3600 / 1000) radiansIOGP2015/11/252013.021 2015.0620
101032milliarc-seconds per yearangle10353.141592653589792.044888768836e+16= ((pi/180) / 3600 / 1000) radians per year. Year taken to be IUGS definition of 31556925.445 seconds; see UoM code 1029.OGP2013/09/022013.021 2013.0420
111033centimetrelength90011100ISO 1000.IOGP2015/11/252013.021 2015.0620
121034centimetres per yearlength102613155692544.5Year taken to be IUGS definition of 31556925.445 seconds; see UoM code 1029.ISO 1000.OGP2013/09/022013.021 2013.0420
131035radians per secondangle103511Angle rate.OGPIOGP2015/11/252013.021 2015.0620
141036unity per secondscale103611Scale rate.OGPOGP2013/05/292013.0210
151040secondtime104011Not to be confused with the angle unit arc-second.ISO 1000.IOGP2015/11/252013.021 2015.0620
161041parts per million per yearscale1036131556925445000Year taken to be IUGS definition of 31556925.445 seconds; see UoM code 1029.OGP2013/09/022013.021 2013.037 2013.0420
171042metres per yearlength1026131556925.445Year taken to be IUGS definition of 31556925.445 seconds; see UoM code 1029.OGPOGP2013/09/022013.021 2013.0420
181043arc-seconds per yearangle10353.1415926535897920448887688360=((pi/180) / 3600) radians per year. Year taken to be IUGS definition of 31556925.445 seconds; see UoM code 1029.IOGP2015/03/062013.021 2013.042 2015.0140
199001metrelength900111Also known as International metre. SI standard unit.ISO 1000.IOGP2015/11/252015.0620
209002footlength90010.30481ISO 1000; 1958IOGP2015/11/252015.0620
219003US survey footlength90011239.37Used in USA.OGPIOGP2015/11/251999.990 2015.0620
229005Clarke's footlength90010.30479726541Assumes Clarke's 1865 ratio of 1 British foot = 0.3047972654 French legal metres applies to the international metre. Used in older Australian, southern African & British West Indian mapping.Australian Land Information Group www.auslig.gov.auIOGP2015/11/251997.233 1999.990 2000.050 2005.370 2005.460 2015.0620
239014fathomlength90011.82881= 6 feet.IOGP2015/11/252015.0620
249030nautical milelength900118521IOGP2015/11/251996.240 2015.0620
259031German legal metrelength90011.00001359651Used in Namibia.Chief Directorate Surveys and Land Information; Mowbray; South AfricaIOGP2015/11/252015.0620
269033US survey chainlength900179239.37Used in USA primarily for public lands cadastral work.Bureau of Land Management technical bulletin 6 (1973) and Standard Field Tables 8th edition (1956).IOGP2015/11/251999.990 2015.0620
279034US survey linklength90017.9239.37Used in USA primarily for public lands cadastral work.Bureau of Land Management technical bulletin 6 (1973) and Standard Field Tables 8th edition (1956).IOGP2015/11/251999.990 2015.0620
289035US survey milelength90016336039.37Used in USA primarily for public lands cadastral work.Bureau of Land Management technical bulletin 6 (1973) and Standard Field Tables 8th edition (1956).IOGP2015/11/251999.990 2015.0620
299036kilometrelength900110001ISO 1000.IOGP2015/11/252015.0620
309037Clarke's yardlength90010.91439179621=3 Clarke's feet. Assumes Clarke's 1865 ratio of 1 British foot = 0.3047972654 French legal metres applies to the international metre. Used in older Australian, southern African & British West Indian mapping.Australian Land Information Group www.auslig.gov.auIOGP2015/11/251997.233 1999.990 2005.370 2005.460 2015.0620
319038Clarke's chainlength900120.11661951641=22 Clarke's yards. Assumes Clarke's 1865 ratio of 1 British foot = 0.3047972654 French legal metres applies to the international metre. Used in older Australian, southern African & British West Indian mapping.Australian Land Information Group www.auslig.gov.auIOGP2015/11/251997.233 1999.990 2005.370 2005.460 2015.0620
329039Clarke's linklength90010.2011661951641=1/100 Clarke's chain. Assumes Clarke's 1865 ratio of 1 British foot = 0.3047972654 French legal metres applies to the international metre. Used in older Australian, southern African & British West Indian mapping.Australian Land Information Group www.auslig.gov.auIOGP2015/11/251997.233 1999.990 2005.370 2005.460 2015.0620
339040British yard (Sears 1922)length90013639.370147Uses Sear's 1922 British yard-metre ratio as given by Bomford as 39.370147 inches per metre. Used in East Malaysian and older New Zealand mapping.G. Bomford "Geodesy" 2nd edition 1962; after J.S.Clark "Remeasurement of the Old Length Standards"; Empire Survey Review no. 90; 1953.IOGP2015/11/251997.233 1999.990 2015.0620
349041British foot (Sears 1922)length90011239.370147Uses Sear's 1922 British yard-metre ratio as given by Bomford as 39.370147 inches per metre. Used in East Malaysian and older New Zealand mapping.G. Bomford "Geodesy" 2nd edition 1962; after J.S.Clark "Remeasurement of the Old Length Standards"; Empire Survey Review no. 90; 1953.IOGP2015/11/251997.233 1999.990 2015.0620
359042British chain (Sears 1922)length900179239.370147Uses Sear's 1922 British yard-metre ratio as given by Bomford as 39.370147 inches per metre. Used in East Malaysian and older New Zealand mapping.G. Bomford "Geodesy" 2nd edition 1962; after J.S.Clark "Remeasurement of the Old Length Standards"; Empire Survey Review no. 90; 1953.IOGP2015/11/251997.233 1999.990 2015.0620
369043British link (Sears 1922)length90017.9239.370147Uses Sear's 1922 British yard-metre ratio as given by Bomford as 39.370147 inches per metre. Used in East Malaysian and older New Zealand mapping.G. Bomford "Geodesy" 2nd edition 1962; after J.S.Clark "Remeasurement of the Old Length Standards"; Empire Survey Review no. 90; 1953.IOGP2015/11/251997.233 1999.990 2015.0620
379050British yard (Benoit 1895 A)length90010.91439921Uses Benoit's 1895 British yard-metre ratio as given by Clark as 0.9143992 metres per yard. Used for deriving metric size of ellipsoid in Palestine.J.S.Clark; "Remeasurement of the Old Length Standards"; Empire Survey Review no. 90; 1953.IOGP2015/11/251997.233 1999.990 2006.260 2015.0620
389051British foot (Benoit 1895 A)length90010.91439923Uses Benoit's 1895 British yard-metre ratio as given by Clark as 0.9143992 metres per yard. Used for deriving metric size of ellipsoid in Palestine.J.S.Clark; "Remeasurement of the Old Length Standards"; Empire Survey Review no. 90; 1953.IOGP2015/11/251997.233 1999.990 2006.260 2015.0620
399052British chain (Benoit 1895 A)length900120.11678241Uses Benoit's 1895 British yard-metre ratio as given by Clark as 0.9143992 metres per yard. Used for deriving metric size of ellipsoid in Palestine.J.S.Clark; "Remeasurement of the Old Length Standards"; Empire Survey Review no. 90; 1953.IOGP2015/11/251997.233 1999.990 2006.260 2015.0620
409053British link (Benoit 1895 A)length90010.2011678241Uses Benoit's 1895 British yard-metre ratio as given by Clark as 0.9143992 metres per yard. Used for deriving metric size of ellipsoid in Palestine.J.S.Clark; "Remeasurement of the Old Length Standards"; Empire Survey Review no. 90; 1953.IOGP2015/11/251997.233 1999.990 2006.260 2015.0620
419060British yard (Benoit 1895 B)length90013639.370113G. Bomford "Geodesy" 2nd edition 1962; after J.S.Clark "Remeasurement of the Old Length Standards"; Empire Survey Review no. 90; 1953.G. Bomford "Geodesy" 2nd edition 1962; after J.S.Clark "Remeasurement of the Old Length Standards"; Empire Survey Review no. 90; 1953.IOGP2015/11/251997.233 1999.990 2015.0620
429061British foot (Benoit 1895 B)length90011239.370113Uses Benoit's 1895 British yard-metre ratio as given by Bomford as 39.370113 inches per metre. Used in West Malaysian mapping.G. Bomford "Geodesy" 2nd edition 1962; after J.S.Clark "Remeasurement of the Old Length Standards"; Empire Survey Review no. 90; 1953.IOGP2015/11/251997.233 1999.990 2015.0620
439062British chain (Benoit 1895 B)length900179239.370113Uses Benoit's 1895 British yard-metre ratio as given by Bomford as 39.370113 inches per metre. Used in West Malaysian mapping.G. Bomford "Geodesy" 2nd edition 1962; after J.S.Clark "Remeasurement of the Old Length Standards"; Empire Survey Review no. 90; 1953.IOGP2015/11/251997.233 1999.990 2015.0620
449063British link (Benoit 1895 B)length90017.9239.370113Uses Benoit's 1895 British yard-metre ratio as given by Bomford as 39.370113 inches per metre. Used in West Malaysian mapping.G. Bomford; "Geodesy"; 3rd edition 1975IOGP2015/11/251997.233 1999.990 2015.0620
459070British foot (1865)length90010.91440253Uses Clark's estimate of 1853-1865 British foot-metre ratio of 0.9144025 metres per yard. Used in 1962 and 1975 estimates of Indian foot.J.S.Clark; "Remeasurement of the Old Length Standards"; Empire Survey Review no. 90; 1953.IOGP2015/11/251997.233 1999.990 2015.0620
469080Indian footlength90011239.370142Indian Foot = 0.99999566 British feet (A.R.Clarke 1865). British yard (= 3 British feet) taken to be J.S.Clark's 1865 value of 0.9144025 metres.G. Bomford; "The Re-adjustment of the Indian Triangulation"; Survey of India Professional Paper 28; 1939.IOGP2015/11/251997.231 1999.990 2015.0620
479081Indian foot (1937)length90010.304798411Indian Foot = 0.99999566 British feet (A.R.Clarke 1865). British foot taken to be 1895 Benoit value of 12/39.370113m. Rounded to 8 decimal places as 0.30479841. Used from Bangladesh to Vietnam. Previously used in India and Pakistan but superseded.G. Bomford; "The Re-adjustment of the Indian Triangulation"; Survey of India Professional Paper 28; 1939.IOGP2015/11/251997.231 1999.990 2015.0620
489082Indian foot (1962)length90010.30479961Indian Foot = 0.99999566 British feet (A.R.Clarke 1865). British yard (3 feet) taken to be J.S. Clark's 1865 value of 0.9144025m. Rounded to 7 significant figures with a small error as 1 Ind ft=0.3047996m. Used in Pakistan since metrication.G. Bomford; "Geodesy"; 2nd edition 1962IOGP2015/11/251997.231 1999.990 2007.011 2015.0620
499083Indian foot (1975)length90010.30479951Indian Foot = 0.99999566 British feet (A.R.Clarke 1865). British yard (3 feet) taken to be J.S. Clark's 1865 value of 0.9144025m. Rounded to 7 significant figures as 1 Ind ft=0.3047995m. Used in India since metrication.G. Bomford; "Geodesy"; 3rd edition 1975IOGP2015/11/251997.231 1999.990 2007.011 2015.0620
509084Indian yardlength90013639.370142Indian Foot = 0.99999566 British feet (A.R.Clarke 1865). British yard (= 3 British feet) taken to be J.S.Clark's 1865 value of 0.9144025 metres.G. Bomford; "The Re-adjustment of the Indian Triangulation"; Survey of India Professional Paper 28; 1939.IOGP2015/11/251997.231 1999.990 2015.0620
519085Indian yard (1937)length90010.914395231Indian Foot = 0.99999566 British feet (A.R.Clarke 1865). British foot taken to be 1895 Benoit value of 12/39.370113m. Rounded to 8 decimal places as 0.30479841. Used from Bangladesh to Vietnam. Previously used in India and Pakistan but superseded.G. Bomford; "The Re-adjustment of the Indian Triangulation"; Survey of India Professional Paper 28; 1939.IOGP2015/11/251997.231 1999.990 2015.0620
529086Indian yard (1962)length90010.91439881Indian Foot = 0.99999566 British feet (A.R.Clarke 1865). British yard (3 feet) taken to be J.S. Clark's 1865 value of 0.9144025m. Rounded to 7 significant figures with a small error as 1 Ind ft=0.3047996m. Used in Pakistan since metrication.G. Bomford; "Geodesy"; 2nd edition 1962IOGP2015/11/251997.231 1999.990 2007.011 2015.0620
539087Indian yard (1975)length90010.91439851Indian Foot = 0.99999566 British feet (A.R.Clarke 1865). British yard (3 feet) taken to be J.S. Clark's 1865 value of 0.9144025m. Rounded to 7 significant figures as 1 Ind ft=0.3047995m. Used in India since metrication.G. Bomford; "Geodesy"; 3rd edition 1975IOGP2015/11/251997.231 1999.990 2007.011 2015.0620
549093Statute milelength90011609.3441=5280 feetOGPIOGP2015/11/252015.0620
559094Gold Coast footlength9001637830020926201Used in Ghana and some adjacent parts of British west Africa prior to metrication, except for the metrication of projection defining parameters when British foot (Sears 1922) used.Ordnance Survey InternationalIOGP2015/11/252000.861 2015.0620
569095British foot (1936)length90010.30480074911For the 1936 retriangulation OSGB defines the relationship of 10 feet of 1796 to the International metre through the logarithmic relationship (10^0.48401603 exactly). 1 ft = 0.3048007491…m. Also used for metric conversions in Ireland.1. "The Retriangulation of Great Britain", Ordnance Survey of Great Britain. 2. "The Irish Grid - A Description of the Co-ordinate Reference System" published by Ordnance Survey of Ireland, Dublin and Ordnance Survey of Northern Ireland, Belfast.IOGP2015/11/252002.621 2006.932 2015.0620
579096yardlength90010.91441=3 international feet.OGPIOGP2015/11/252015.0620
589097chainlength900120.11681=22 international yards or 66 international feet.OGPIOGP2015/11/252015.0620
599098linklength900120.1168100=1/100 international chain.OGPIOGP2015/11/252015.0620
609099British yard (Sears 1922 truncated)length90010.9143981Uses Sear's 1922 British yard-metre ratio (UoM code 9040) truncated to 6 significant figures.Defence Geographic CentreIOGP2015/11/252006.901 2015.0620
619101radianangle910111SI standard unit.ISO 1000:1992IOGP2015/11/252015.0620
629102degreeangle91013.14159265358979180= pi/180 radiansIOGP2015/11/251996.220 2002.860 2015.0620
639103arc-minuteangle91013.14159265358979108001/60th degree = ((pi/180) / 60) radiansIOGP2015/11/251996.220 2002.860 2015.0620
649104arc-secondangle91013.141592653589796480001/60th arc-minute = ((pi/180) / 3600) radiansIOGP2015/11/251996.220 2002.860 2015.0620
659105gradangle91013.14159265358979200=pi/200 radians.OGPIOGP2015/11/251996.220 1999.050 2002.860 2015.0620
669106gonangle91013.14159265358979200=pi/200 radiansOGP2002/11/181996.220 2002.860 2015.0621
679107degree minute secondangle9102Degree representation. Format: signed degrees (integer) - arc-minutes (integer) - arc-seconds (real, any precision). Different symbol sets are in use as field separators, for example º ' ". Convert to degrees using algorithm.OGPIOGP2015/11/251996.190 2002.070 2002.780 2015.0620
689108degree minute second hemisphereangle9102Degree representation. Format: degrees (integer) - arc-minutes (integer) - arc-seconds (real) - hemisphere abbreviation (single character N S E or W). Different symbol sets are in use as field separators for example º ' ". Convert to deg using algorithm.OGPIOGP2015/11/251996.190 2002.070 2002.780 2015.0620
699109microradianangle910111000000rad * 10E-6ISO 1000.OGP1996/10/181999.0500
709110sexagesimal DMSangle9102Pseudo unit. Format: signed degrees - period - minutes (2 digits) - integer seconds (2 digits) - fraction of seconds (any precision). Must include leading zero in minutes and seconds and exclude decimal point for seconds. Convert to deg using algorithm.OGPIOGP2016/12/152002.270 2002.780 2008.020 2015.062 2016.0470
719111sexagesimal DMangle9102Pseudo unit. Format: signed degrees - period - integer minutes (2 digits) - fraction of minutes (any precision). Must include leading zero in minutes and exclude decimal point for minutes. Convert to degree using algorithm.OGPIOGP2016/12/152002.070 2002.780 2015.062 2016.0470
729112centesimal minuteangle91013.14159265358979200001/100 of a grad and gon = ((pi/200) / 100) radianshttp://www.geodesy.matav.hu/IOGP2015/11/251998.480 1999.510 2002.860 2005.460 2015.0620
739113centesimal secondangle91013.1415926535897920000001/100 of a centesimal minute or 1/10,000th of a grad and gon = ((pi/200) / 10000) radianshttp://www.geodesy.matav.hu/IOGP2015/11/251999.510 2002.860 2005.460 2015.0620
749114mil_6400angle91013.141592653589793200Angle subtended by 1/6400 part of a circle. Approximates to 1/1000th radian. Note that other approximations (notably 1/6300 circle and 1/6000 circle) also exist.http://www.geodesy.matav.hu/IOGP2015/11/251999.510 2005.460 2015.0620
759115degree minuteangle9102Degree representation. Format: signed degrees (integer) - arc-minutes (real, any precision). Different symbol sets are in use as field separators, for example º '. Convert to degrees using algorithm.OGPIOGP2015/11/252002.780 2015.0620
769116degree hemisphereangle9102Degree representation. Format: degrees (real, any precision) - hemisphere abbreviation (single character N S E or W). Convert to degrees using algorithm.OGPIOGP2015/11/252015.0620
779117hemisphere degreeangle9102Degree representation. Format: hemisphere abbreviation (single character N S E or W) - degrees (real, any precision). Convert to degrees using algorithm.OGPIOGP2015/11/252015.0620
789118degree minute hemisphereangle9102Degree representation. Format: degrees (integer) - arc-minutes (real, any precision) - hemisphere abbreviation (single character N S E or W). Different symbol sets are in use as field separators, for example º '. Convert to degrees using algorithm.OGPIOGP2015/11/252015.0620
799119hemisphere degree minuteangle9102Degree representation. Format: hemisphere abbreviation (single character N S E or W) - degrees (integer) - arc-minutes (real, any precision). Different symbol sets are in use as field separators, for example º '. Convert to degrees using algorithm.OGPIOGP2015/11/252015.0620
809120hemisphere degree minute secondangle9102Degree representation. Format: hemisphere abbreviation (single character N S E or W) - degrees (integer) - arc-minutes (integer) - arc-seconds (real). Different symbol sets are in use as field separators for example º ' ". Convert to deg using algorithm.OGPIOGP2015/11/252015.0620
819121sexagesimal DMS.sangle9104Pseudo unit. Format: signed degrees - minutes (2 digits) - integer seconds (2 digits) - period - fraction of seconds (any precision). Must include leading zero in minutes and seconds and include decimal point for seconds. Convert to deg using algorithm.ISO 6709:1983.IOGP2016/12/152015.062 2016.0470
829122degree (supplier to define representation)angle91013.14159265358979180= pi/180 radians. The degree representation (e.g. decimal, DMSH, etc.) must be clarified by suppliers of data associated with this code.OGPIOGP2015/11/252015.0620
839201unityscale920111IOGP2015/11/252015.0620
849202parts per millionscale920111000000IOGP2015/11/252013.021 2013.037 2015.0620
859203coefficientscale920111Used when parameters are coefficients. They inherently take the units which depend upon the term to which the coefficient applies.OGPOGP2004/09/142004.5300
869204Bin width 330 US survey feetlength9001396039.37OGPOGP2000/10/192000.590 2011.1061
879205Bin width 165 US survey feetlength9001198039.37OGPOGP2000/10/192000.590 2011.1061
889206Bin width 82.5 US survey feetlength900199039.37OGPOGP2000/10/192000.590 2011.1061
899207Bin width 37.5 metreslength900137.51OGPOGP2000/10/192000.590 2011.1061
909208Bin width 25 metreslength9001251OGPOGP2000/10/192000.590 2011.1061
919209Bin width 12.5 metreslength900112.51OGPOGP2000/10/192000.590 2011.1061
929210Bin width 6.25 metreslength90016.251OGPOGP2000/10/192000.590 2011.1061
939211Bin width 3.125 metreslength90013.1251OGPOGP2000/10/192000.590 2011.1061
949300British foot (Sears 1922 truncated)length90010.9143983Uses Sear's 1922 British yard-metre ratio (UoM code 9040) truncated to 6 significant figures; this truncated ratio (0.914398, UoM code 9099) then converted to other imperial units. 3 ftSe(T) = 1 ydSe(T).Defence Geographic CentreIOGP2015/11/252006.901 2015.0620
959301British chain (Sears 1922 truncated)length900120.1167561Uses Sear's 1922 British yard-metre ratio (UoM code 9040) truncated to 6 significant figures; this truncated ratio (0.914398, UoM code 9099) then converted to other imperial units. 1 chSe(T) = 22 ydSe(T). Used in metrication of Malaya RSO grid.Defence Geographic CentreIOGP2015/11/252006.901 2015.0620
969302British link (Sears 1922 truncated)length900120.116756100Uses Sear's 1922 British yard-metre ratio (UoM code 9040) truncated to 6 significant figures; this truncated ratio (0.914398, UoM code 9099) then converted to other imperial units. 100 lkSe(T) = 1 chSe(T).Defence Geographic CentreIOGP2015/11/252006.901 2015.0620