Data · dataset · 2023
CCD-Maize: A twenty-year dataset of maize distribution with high spatial resolution in China
Listed in ScienceDB
The dataset is a long-term, high-resolution maize distribution map for China (China Crop Dataset–Maize, CCD-Maize), which contains the distribution maps of maize in 22 provinces and municipalities of China from 2001 to 2020.
Description
The file format is GeoTIFF and the spatial reference is WGS84 (EPSG:4326). The resolution of the distribution maps is 30-m.
The distribution maps are produced using the time-weighted dynamic time warping (TWDTW) method based on a high spatiotemporal resolution fused dataset. The overall accuracy over 22 provincial administrative regions was 79.38 % on average based on 18,557 samples, and at the county level, the correlation coefficient (R2) between the identified area and the statistical area from 2001 to 2020 ranged from 0.657 to 0.903.classification system:0: non-maize1: maize
Links
Where it is published
- DOI doi.org/10.57760/sciencedb.08490 ↗
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 · Social Science
Provenance · 1 source records, 10 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| ScienceDB | 10.57760/sciencedb.08490 | 11 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: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 |