The China Meteorological Forcing Dataset (CMFD) is a high spatial-temporal resolution gridded near-surface meteorological dataset that was developed specifically for studies of land surface processes in China. The dataset was made through fusion of remote sensing products, reanalysis dataset and in-situ observation data at weather stations. Its record starts from January 1979 and keeps extending (currently up to December 2018) with a temporal resolution of three hours and a spatial resolution of 0.1°. Seven near-surface meteorological elements are provided in CMFD, including 2-meter air temperature, surface pressure, specific humidity, 10-meter wind speed, downward shortwave radiation, downward longwave radiation and precipitation rate.
This data set contains the observation data of Zhangye National Climate Observatory from 2008 to 2009. The station is located in Zhangye, Gansu Province, with longitude and latitude of 100 ° 17 ′ e, 39 ° 05 ′ N and altitude of 1456m. The observation items include: atmospheric wind temperature and humidity gradient observation (2cm, 4cm, 10cm, 20m and 30m), wind direction, air pressure, photosynthesis effective radiation, precipitation, radiation four components, surface temperature, multi-layer soil temperature (5cm, 10cm, 15cm, 20cm and 40cm), soil moisture (10cm, 20cm, 50cm, 100cm and 180cm) and soil heat flux (5cm, 10cm and 15cm). Please refer to the instruction document published with the data for specific header and other information.
The WRF model was used to prepare the near-surface atmospheric driving data of 2m air temperature, surface pressure, 2m water vapor mixing ratio, radiation, 10m wind field and cumulative precipitation at 0.05 degrees per hour from 2000 to 2015 in heihe river basin.The coordinate system is the longitude and latitude projection.Data is stored month by month, UTC time system, data format is netcdf, naming method: wrfout_heihe_yyyy_mm_01, where "wrfout_heihe_" is a fixed format, representing the result of the second layer of nesting, yyyy is the year, mm is the month, "01" represents every month from the 1st. Through daily and hourly verification with the observation data of 15 CMA sites and 7 WATER sites, the following conclusions are drawn: 2m surface temperature, surface pressure and relative humidity are relatively reliable, especially 2m surface temperature and surface pressure, the mean error is small and the correlation coefficient is above 0.96;The correlation between the downward short-wave radiation and the observed data at the WATER station was more than 0.9, and the correlation between the downward long-wave radiation was also 0.6.The wind speed of 10m differs greatly from the observed data, and the correlation is weak.The above verification results are for reference only, for specific reference, reference 1 and reference 2. The data of 2014-2015 were updated in April 2016. Data for 2016-2018 were updated in October 2019.