QX/T 37-2020 in English
VALIDData format of meteorological station history
- Issued on:2020-11-05
- Implemented on:2021-02-01
- File Format:PDF
- Delivery:Via email within 5 business days
$873.00
Introduction
Background of Standard Revision and Technological Evolution
As an alternative version of QX/T37-2005, this standard responds to the WMO requirements for international exchange of meteorological metadata and realizes the transformation from text format to XML structured data. The main technological breakthroughs are reflected in:
| Dimension | 2005 version | 2020 version | Improvement significance |
|---|---|---|---|
| File format | Text format | XML format | Enhanced scalability |
| Position accuracy | Minutes(′) | Seconds(″) | Improved geographic positioning accuracy |
| Environmental factors | 7 categories | Added 12 categories including land use | Improved ecological assessment system |
Core data structure analysis
XML file composition
The root element is <MeteorologicalStationHistoryData>, which contains 13 first-level elements:
- Header (basic information such as station archive number, district station number, etc.)
- Station name evolution (maximum length extended to 100 characters)
- Observation elements (new automatic inversion mark)
Application example: Station migration record
When the station location changes, you need to fill in the typeGeoLocation element:
New longitude and latitude (DDMMSS format) + Distance and direction from the original site + Total environmental assessment score
Implementation suggestions
Key points for data compilation
- File name specification: LIIiiixYYYY1YYYY2.xml, where IIiii is the district station number
- Required fields: station file number (5 digits), observation field altitude (0.1m accuracy)
- Missing measurement processing: uniformly use the "999999" identifier
Quality control
The following content needs to be verified through the XML Schema in Appendix B:
| Element occurrence count | Header (1 time), observation element (1-N times) |
| Data type | Longitude (typeDegreeMinuteSecond), altitude (xs:float) |
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