The China industrial water withdrawal Dataset (CIWW) —a gridded monthly industrial water withdrawal data in China from 1965 to 2020.

This is a gridded dataset of monthly industrial water withdrawal (IWW) for China, namely, the China industrial water withdrawal dataset (CIWW). The dataset begins in January 1965 and is ongoing (currently up to December 2020) with a temporal resolution of a month and a spatial resolution of 0.1°/0.25°. The CIWW dataset, together with its auxiliary data, will be useful for water resource management and hydrological models.<b>Version history:</b><b>V1.1_20240403</b><b>Update the seasonal variability</b>.Compared to version 1.0, we estimated the seasonality of the subsector (Electricity and Heating Power Production and Supply,) based on spatial classification and then recreated the CIWW data with the updated seasonal variability. More details are described in Hou et al. (2023). The seasonal variation in the updated version is less different from the previous one.<b>V1.0_20230209</b><br><br><b>Using notes：</b><b>Updated notes about opening the data with ArcGIS and other software (Jan 13, 2025)</b>When opening the CIWW dataset (NetCDF format) in ArcGIS, the following issues may appear, as reported by users:1) The file cannot be successfully opened in ArcGIS.2) The time dimension value could not be properly displayed (e.g., time fixed to January 1, 1965).a) For ArcGIS users, it is recommended to utilize the <b>Multidimension Tools</b> in the toolbox and select the <b>Make NetCDFRaster Layer</b> tool. During the import process:Choose <b>iww_layer</b> as the variable.Select <b>time</b> as the third dimension in addition to longitude and latitude.After importing, open the <b>Properties</b> of the layer and navigate to the <b>Symbology</b> tab. You will see 672 different bands, representing the monthly data from January 1965 to December 2020.If the dataset is directly dragged into ArcGIS, the variable <b>cell_area</b> will be opened by default. This variable represents the area of each grid cell at a resolution of 0.25°/0.1° within the longitude and latitude range of China. The industrial water withdrawal is provided in units of mm/month. If needed, you can convert this to m³/month by multiplying the values by the corresponding grid cell area. For detailed variable descriptions, refer to the <b>readme.txt</b> file.b) The CIWW dataset can be opened using QGIS. Users can select the relevant dimensions and drag the dataset directly into QGIS. The time dimension includes 672 bands, with each band representing the number of days since January 1, 1965.c) The NetCDF format CIWW dataset can be easily opened by any programing language with NetCDF capabilities, for example, the <i>xarry</i> package in Python, Matlab, R, and others).<b>Authors:</b> Chengcheng Hou ([e-mail]), Yan Li ([e-mail]).<b>Reference: </b>Hou, C., Li, Y., Sang, S., Zhao, X., Liu, Y., Liu, Y., and Zhao, F.: High-resolution mapping of monthly industrial water withdrawal in China from 1965 to 2020, Earth Syst. Sci. Data Discuss. [preprint], https://doi.org/10.5194/essd-2023-66, in review, 2023.