Spatiotemporal examination of seasonal surface water changes
The dataset supports spatiotemporal analysis of interactions between seasonal water, climate, land use, policy, and socioeconomic changes. The seasonal water area data was extracted from The JRC Monthly Water History, V1.2. This entire history collection includes 430 monthly water detection images between March 1984 and December 2019. Each image contains 30m pixels with three possible cell values: 1 - not water (i.e., land), 2 - seasonal water, and 3 - permanent water. We aimed at examining the whole Hulun-Buir basin consisting of 12 banners. We counted the total number of cells with a 2 value each year over each banner from 2000 to 2014. We multiplied that number by 30m × 30m to get the yearly seasonal water areas by banners. The data of precipitation and temperature were interpolated from the 50 weather stations in Inner Mongolia Autonomous Region (IMAR) of China (http://cdc.cma.gov.cn). The annual precipitation and the average temperature were spatially interpolated as two grid maps at 250m×250m using ArcGIS Inverse Distance Weighted (IDW). The cell values were resampled as the averaged values by counties. The data of land-use and land-cover changes (LULC) primarily came from The NASA MCD12Q1 Data Product (https://lpdaac.usgs.gov/products/mcd12q1v006/) at 500 m resolution. 16 out of the 17 International Geosphere-Biosphere Program LULC types were found in the study area, except "Evergreen Broadleaf Forest" (http://www.igbp.net/). The socioeconomic variables were entered from the statistic yearbooks of the IMAR from 2000 to 2015 (IMAR Statistical Bureau, 2001 - 2016). All data are stored in the excel file, titled as HulunBuir_Seasonal_Water_Change_Research_Data_Sources. The worksheet called ‘Data’ contains all data items; the worksheet of ‘Explanation’ provides full names and measurement units of the abbreviated variable names; and the worksheet of ‘Banner_Names’ includes the Chinese and English names along with the index ID for the counties involved with the dataset. Banner is the Mongolian term of the English word, County.
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