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Add governed SPW bathymetry analysis
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Codex
2026-07-19 04:07:01 +02:00
parent ae3d3dc634
commit 70c5e34ecf
37 changed files with 1852 additions and 102 deletions
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docs/BATHYMETRY_EXPANSION_ROADMAP.md
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@@ -8,10 +8,11 @@ GeoIntel must distinguish three different questions:
2. What is the continuous elevation of the bed at a specific survey epoch?
3. What is the water depth or volume at a specific moment?
Only the first question is operational for Mol through the VHA cross-section
profile layer. A bed model does not provide water depth without a compatible
water-surface elevation. Flood-hazard maximum depth is a scenario result and
must not be reused as current water level.
The first question is operational for Flanders through VHA cross-section
profiles. The second is now operational for bounded, surveyed Walloon
waterways through the official SPW raster. A bed model does not provide water
depth without a compatible water-surface elevation. Flood-hazard maximum depth
is a scenario result and must not be reused as current water level.
## Governed source matrix
@@ -19,7 +20,7 @@ must not be reused as current water level.
| --- | --- | --- | --- | --- |
| VMM VHA Digital Atlas | Flanders | Point locations, structured profile fields, PDF evidence | Document-specific | Operational, bounded vector acquisition |
| MDK Belgian Continental Shelf model | Belgian North Sea | Continuous 20 x 20 m bathymetric raster | LAT | Available, not integrated |
| SPW navigable waterways and reservoir lakes | Wallonia | 0.5 m bed-elevation raster and XYZ cloud | mDNG | Available, not integrated |
| SPW navigable waterways and reservoir lakes | Wallonia | 0.5 m bed-elevation raster and XYZ cloud | mDNG | Operational, pinned operator archive and bounded COG |
| Port of Antwerp-Bruges publications | Port survey areas | Periodic soundings | Product-specific | Catalog candidate |
VHA contains approximately 129,643 profile points across Flanders at the
@@ -135,7 +136,10 @@ bed evolution.
**Probe implemented. Acquisition blocked because the live endpoint fails
strict hostname validation and does not expose usable capabilities.**
4. Implement SPW download staging and vertical-datum metadata validation.
**Done: pinned official ZIP, safe `/vsizip/` access, bounded COG,
DatasetService persistence, map overlay and mDNG selection metrics.**
5. Add maritime boundaries as separate authoritative scope layers.
**Done for the Belgian territorial sea, EEZ and continental shelf.**
6. Add cross-source vertical-datum transformation only with authoritative
grids/parameters and uncertainty tests.
7. Add volume only after a compatible measured or modeled water-surface source