feat: complete Wallonia land cover and terrain sources
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2026-07-22 06:28:46 +02:00
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@@ -766,16 +766,22 @@ never contacts WCS, WFS or OGC providers directly.
## Walloon current and historical land cover
For a bounded Walloon selection, `Landbedekking` resolves the newest configured
WALOUS product and automatically persists the other configured comparable
edition for the same rectangle. Current analysis shows semantic hectare
WALOUS product and automatically persists the other configured governed
editions for the same rectangle. Current analysis shows semantic hectare
metrics and an 11-class MapLibre image overlay. After dataset refresh,
`Evolutie` offers 2020 versus 2023 through the same period selector and trend
chart used by other temporal sources. Individual object-change counts remain
`Evolutie` offers 2018, 2020 and 2023 through the same period selector and
trend chart used by other temporal sources, with the 2018 visible-class
crosswalk and methodology warning retained. Individual object-change counts remain
unavailable for categorical rasters and are not simulated.
The source card remains `Op aanvraag` when the official source files are not
provisioned and never contacts SPW directly from the browser.
For Walloon elevation, the same regional resolution selects the configured
SPW MNT 2021-2022 product, persists only the bounded derivative and labels
height in `m DNG`. Flemish DHMV stays in `m TAW`; the UI never merges those
vertical references.
## Belgium and Belgian North Sea coverage
When `Belgium and North Sea Workbench` exists with ready reference data, it is