Data · dataset · 2026
GHM Coastal Wetlands Dataset: A long-term and high-resolution coastal wetlands distribution dataset in the Guangdong-Hong Kong-Macao Area
Listed in ScienceDB
The GHM Coastal Wetlands Dataset (GHMCWD) is a 30 m resolution map depicting the spatial distribution of forest, mangrove, swamp/marsh, tidal flat, reservoir/lake, breeding pond/pond, coastal water/river, impervious/ bare land and paddy field/grass in the Guangdong-Hong Kong-Macao area (GHM) from 1993 to 2023.
Description
This dataset is formatted in GeoTIFF and uses the WGS_1984 coordinate system (EPSG:4326). Pixel values are classified as follows: 10 for forest, 20 for mangrove, 30 for swamp/marsh, 40 for tidal flat, 50 for reservoir/lake, 70 for breeding pond/pond, 80 for coastal water/river, 90 for impervious/ bare land and 100 for paddy field/grass.
The accuracy assessment indicates the overall accuracy and Kappa coefficients exceeding 0.9, with inter-annual accuracy variations of less than 5%.
Links
Where it is published
- DOI doi.org/10.57760/sciencedb.30229 ↗
DOI / persistent id · from scidb cn
Catalogue records · 1
- OAI-PMH record scidb.cn/oai?verb=GetRecord&metadataPrefix=oai_dc&identifier=10.57760%2… ↗
metadata API · from scidb cn
Topics
- From keywords
- Earth & Environmental Science · Engineering · Humanities · Life Sciences · Ocean & Atmospheric Science · Social Science
Provenance · 1 source records, 11 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| ScienceDB | 10.57760/sciencedb.30229 | 10 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].local:field:earth-environmental | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].local:field:engineering | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].local:field:humanities | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].local:field:life-sciences | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].local:field:ocean-atmospheric | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].local:field:social-science | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| description | source · scidb cn | connector:scidb_cn@1.0.0 | /metadata/dc/description |
| license | source · scidb cn | connector:scidb_cn@1.0.0 | /metadata/dc/rights |
| publication_date | source · scidb cn | connector:scidb_cn@1.0.0 | |
| title | source · scidb cn | connector:scidb_cn@1.0.0 | /metadata/dc/title |