The Chinese Tianshan Mountains (CTM) has a complex ecological environment system. It not only has a large number of desert oases, but also gave birth to a large number of glaciers. The arid climate and the shortage of water resources are the important factors to restrict the socio-economic development in this area. This study presents a unique high-resolution (1km, 6h) air temperature data set for the Chinese Tianshan Mountains from 1979 to 2016 based on a robust statistical downscaling framework. The coverage of data set is 41.1814-45.9945 °N, 77.3484-96.9989 °E. The grid point is derived from SRTM DEM, which is resampled from 90m to 1km. The total number of grid point is 818126. The time step is 6 hour at 00, 06, 12, and 18 Uhr. The data set was validated by 24 meteorological stations at daily scale. Compared with undownscaled ERA-Interim temperature, the Nash-Sutcliffe efficiency coefficient (NSE) increased from 0.90 to 0.94 over all test sites. Around 24% of root-mean-square error (RMSE) was reduced from 3.75 to 2.85 °C. A skill score based on the probability density function (PDF), which was used to validate the reliability of the new data set for capturing the distributions, enhanced from 0.86 to 0.91 for all test sites. We conclude that the new high-resolution data set is reliable for climate change investigation over the Chinese Tianshan Mountains. This data set would be helpful for the potential users for better local climate monitoring, modelling and environmental studies in the Chinese Tianshan Mountains.
| collect time | 1979/01/01 - 2016/12/31 |
|---|---|
| collect place | Tianshan Mountains, China |
| data size | 169.2 GiB |
| data format | nc |
| Coordinate system |
The correction adopts the reanalysis product of the European Centre for Medium Range Weather Forecasts (ECMWF); Analyze and utilize the China Meteorological Data Sharing Service System (CMA-CMDC) of the National Meteorological Information Center, http://data.cma.cn/ ).
Analyze and calculate.
The data quality is good.
This work is licensed under a
Creative
Commons Attribution 4.0 International License.
| # | title | file size |
|---|---|---|
| 1 | _ncdc_meta_.json | 4.9 KiB |
| 2 | 中国天山地区高分辨率气温数据集(1979-2016年) |
Temperature Tianshan Mountains high resolution probability density function resampling
1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016
©Copyright 2005-. Northwest Institute of Eco-Environment and Resources, CAS.
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