SL/T 801-2020 in English
VALIDSpecification for Water Spatial Information Service
- Issued on:2020-07-27
- Implemented on:2020-10-27
- File Format:PDF
- Delivery:Via email within 1~3 business days
Price(USD)：
$280.00
$272.00
$272.00
Introduction
Standard Framework and Technology Evolution
| Version | Core Changes | Technological Breakthroughs |
|---|---|---|
| 2021 Edition | New Vector Tile Service Specifications | Support WebGL Rendering |
| 2015 Edition | Basic Service Architecture | Traditional Raster Tiles |
Core Content Analysis
Spatial and Temporal Benchmark Requirements
Mandatory AdoptionCGCS2000 coordinate system, the 1985 national elevation datum is preferred, and time records must be accurate to the second level.
Data organization rules
Example: Provincial nodes need to maintain 1:10,000 large-scale data, and the Ministry of Water Resources node is responsible for integrating and generating 1:250,000 medium-scale data, and multi-level collaborative updates are achieved through the regular data exchange mechanism.
Service Implementation Suggestions
Tile Service Configuration
- Mobile terminals give priority to 512×512 pixel tiles
- Must support PNG/JPEG formats
- The starting point is set at 180° west longitude and 90° north latitude
Security Deployment Plan
| Network Environment | Service Type | Concurrency Control |
|---|---|---|
| Government Intranet | WFS/WPS | ≤500TPS |
| Internet | WMTS | CDN acceleration |
Typical application scenarios
Spatial analysis of water intake
Through WPS service:
- Spatial relationship verification with shoreline elements
- Compliance analysis of water function zoning
- Distance calculation of upstream sewage outlet (threshold ≥300m)
Sample only — not a preview of SL/T 801-2020
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