DOI: 10.57760/sciencedb.06963
title: High-resolution distribution maps of single-season rice in China from 2017 to 2022
title: High-resolution distribution maps of single-season rice in China from 2017 to 2022

description: Description in English:This dataset is the dataset of distribution maps of single-season rice in China, which contains distribution maps of single-season rice of 21 provincial administrative regions in China from 2017 to 2022. The file format is GeoTIFF and the spatial reference is WGS84 (EPSG:4326). The resolution of the distribution maps is 20-m in Heilongjiang, Jilin, Liaoning, Inner Mongolia, and Ningxia, and 10-m in the other provinces. The distribution maps are produced using the time-weighted dynamic time warping (TWDTW) method based on Sentinel-1 and Sentinel-2 images. The overall accuracy over 21 provincial administrative regions was 85.23 % on average based on 108195 samples, and the average R2 was 0.83 over three years compared with county-level statistical planting areas.classification system:0: non-single-season rice1: single-season riceUpdates:v1.1: Compared with the distribution map of double-season rice from Pan et al.'s dataset (2021) (https://doi.org/10.3390/rs13224609), the two datasets overlapped in provinces where both single- and double-season rice were cultivated, including Anhui, Hubei, Hunan, Jiangxi, Zhejiang, Fujian, and Guangxi. Version 1.1 of this dataset was updated by reclassifying the overlapped pixels to ensure that the two datasets no longer overlap.v1.2: Fix error caused by the caliber of late rice statistics in Fujian Province.2024-02-23: Update distribution maps for the year 2023.2025-04-01: Update distribution maps for the year 2024.
description: Description in English:This dataset is the dataset of distribution maps of single-season rice in China, which contains distribution maps of single-season rice of 21 provincial administrative regions in China from 2017 to 2022. The file format is GeoTIFF and the spatial reference is WGS84 (EPSG:4326). The resolution of the distribution maps is 20-m in Heilongjiang, Jilin, Liaoning, Inner Mongolia, and Ningxia, and 10-m in the other provinces. The distribution maps are produced using the time-weighted dynamic time warping (TWDTW) method based on Sentinel-1 and Sentinel-2 images. The overall accuracy over 21 provincial administrative regions was 85.23 % on average based on 108195 samples, and the average R2 was 0.83 over three years compared with county-level statistical planting areas.classification system:0: non-single-season rice1: single-season riceUpdates:v1.1: Compared with the distribution map of double-season rice from Pan et al.'s dataset (2021) (https://doi.org/10.3390/rs13224609), the two datasets overlapped in provinces where both single- and double-season rice were cultivated, including Anhui, Hubei, Hunan, Jiangxi, Zhejiang, Fujian, and Guangxi. Version 1.1 of this dataset was updated by reclassifying the overlapped pixels to ensure that the two datasets no longer overlap.v1.2: Fix error caused by the caliber of late rice statistics in Fujian Province.2024-02-23: Update distribution maps for the year 2023.2025-04-01: Update distribution maps for the year 2024.