Address—geocode longitude, decimal degrees XN[NN][.N(9)]
Identifying and definitional attributes | |
Metadata item type: | Data Element |
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| Short name: | Geocode longitude decimal degrees |
| Synonymous names: | Longitude |
| METEOR identifier: | 430469 |
| Registration status: |
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| Definition: | The geographic longitude of an address point on the earth, measured in decimal degrees east or west of the Greenwich Meridian. |
| Data Element Concept: | Address—geocode longitude |
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Representational attributes | ||||||||||||||||||
| Representation class: | Identifier | |||||||||||||||||
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| Data type: | Geospatial | |||||||||||||||||
| Format: | XN[NN][.N(9)] | |||||||||||||||||
| Maximum character length: | 13 | |||||||||||||||||
| Unit of measure: | Decimal degree | |||||||||||||||||
Collection and usage attributes | ||||||||||||||||||
| Guide for use: | The 'X' in the longitude format symbolises the designator symbol “+” or “-” and should be placed prior to the first number. The designator symbol for longitudes east of Greenwich are positive and shall be designated by use of the plus sign (+), while longitudes west of Greenwich are negative and shall be designated by use of the minus sign (-). The Prime Meridian shall be designated by use of the plus sign (+). The 180th meridian shall be designated by use of the minus sign (-). The format XN[NN][.N(9)] allows for 1, 2 and 3 digit longitudes (ie. degrees) with the option of 0 to 9 decimal places (i.e. decimal degrees). Usage examples:
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Source and reference attributes | ||||||||||||||||||
| Origin: | Standards Australia/Standards New Zealand 2008. AS/NZS ISO6709:2008—Standard representation of latitude, longitude and altitude for geographic point locations. Sydney/Wellington: Standards Australia/Standards NZ. Standards Australia 2006. AS 4590—2006 Interchange of client information. Sydney: Standards Australia. | |||||||||||||||||
Data element attributes | ||||||||||||||||||
Collection and usage attributes | ||||||||||||||||||
| Comments: | Geographical coordinates (latitudes and longitudes) are the universal system for defining spatial position. A set of geographic coordinates on a datum is complete and unique, worldwide. Positions of geographic features can be defined in space by a set of coordinates. In order for coordinates to be unique, the coordinate reference system needs to be fully defined. A coordinate reference system is realised by a reference frame, which comprises a datum and a coordinate system. Longitudes can also be expressed in degrees, minutes and seconds (e.g. 150° 54' 45".98), see METeOR for this related item. A conversion to decimal degrees from the degrees, minutes and seconds format can be calculated with the following formula: Decimal Degrees = Degrees + ((Minutes / 60) + (Seconds / 3600)). (REF: Usage example: -75° 59' 32.483" converts to -75.992356389 in decimal degrees (rounded up to 9 decimal places). | |||||||||||||||||
Source and reference attributes | ||||||||||||||||||
| Submitting organisation: | Australian Institute of Health and Welfare | |||||||||||||||||
| Origin: | Standards Australia 2006. AS 4590—2006 Interchange of client information. Sydney: Standards Australia. | |||||||||||||||||
Relational attributes | ||||||||||||||||||
| Related metadata references: | See also Address—geocode latitude, decimal degrees XN[N][.N(9)]
See also Address—geocode latitude, degrees minutes seconds Xd{d}{mm}{ss}{.ss}
See also Address—geocode longitude, degrees minutes seconds Xd[dd]{mm}{ss}{.ss}
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| Implementation in Data Set Specifications: All attributes + |
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