GB 12409-1990
Geographic grid (English Version)
- Standard No.
- GB 12409-1990
- Language
- Chinese, Available in English version
- Release Date
- 1990
- Published By
- General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
- Status
- 2009-06
- Replace By
- GB/T 12409-2009
- Latest
- GB/T 12409-2009
- Scope
- This standard specifies the rules and codes for the division of geographic grid systems, which are used to identify resources and environmental information related to geographic spatial distribution, to ensure the consistency of storage, statistics, analysis, and exchange, and to achieve information sharing. This standard is applicable to resource and environmental information expressed in planar distribution and with grid as the unit of measurement. Among them: The 10°×10° grid system is mainly suitable for representing resources and environmental information in the fields of ocean, meteorology, and geophysics; the 4°×6° grid system is mainly suitable for representing national or provincial (district) ) within the scope of resource and environmental information. Cartesian coordinate grid system is mainly suitable for expressing resource and environmental information required for engineering planning, design, construction and other applications in land and offshore areas. In order to realize information sharing across the country, it is stipulated that the 4°×6° grid system should be used for information exchange between domestic systems. Any of the above three systems can be selected for intra-system or international exchange.
GB 12409-1990 history
- 2009 GB/T 12409-2009 Geographic grid
- 1990 GB 12409-1990 Geographic grid
GB 12409-1990 Geographic grid was changed to GB/T 12409-2009 Geographic grid.
