%0 Dataset
%T A multi-temporal scale temperature and precipitation dataset for the Qilian Mountains region (1941-2021)
%J National Cryosphere Desert Data Center
%I National Cryosphere Desert Data Center(www.ncdc.ac.cn)
%U http://www.ncdc.ac.cn/portal/metadata/06c88707-8015-4fe8-8c10-afbbc5ff0cf8
%W NCDC
%R 10.12072/ncdc.NIEER.db2489.2022
%A Cheng Shengyun 
%A Rong Zhanlei
%K Dataset for air temperature and precipitation;Qilian Mountains;Nash Sutcliffe efficiency coefficient
%X Based on the consideration of topographic information, a downscaling of the coarse resolution (30′) CRU dataset was carried out using a geo-weighted regression method. Temperature (Ta) and precipitation datasets were obtained for the Qilian Mountains from 1941-021, and the downscaled 5′ (1km) resolution dataset was evaluated using observations from meteorological stations. Compared with the original CRU dataset, the new dataset shows a 52.7% and 4.9% reduction in mean absolute error for Ta and precipitation, respectively. The root-mean-square errors for Ta and precipitation were reduced by 53.3% and 10.4%, respectively. The Nash-Sutcliffe efficiency coefficients for temperature and precipitation have improved by 25.4% and 9.5% respectively. The new dataset can provide detailed information for the analysis of climate change trends over multiple time scales. The dataset will help potential users to improve climate monitoring, modelling and environmental studies in the Qilian Mountains region.1. Name of Data Ta1941-2021month.nc Pre1941-2021month.nc 2.Data description of  attribute itemsThe data stored using the NetCDF format. Thus, each file contains 972 months of data and requires 4.69GB of storage space.   Each file name indicates the data contained in the file, For example, the file named Ta1941-2021month. nc contains month temperature  data from 1941 to 2021. The total number of NetCDF files is 2, and the total size of the dataset in nc format is approximately 9.38 GB.Temperature is measured in degrees Celsius and precipitation in millimeters. The spatial resolution of data is 1km.