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《Journal of Geomatics》 2014-04
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Accuracy Analysis and Test on the Weighted Mean Temperature of the Atmosphere Grid Data Offered by GGOS Atmosphere

XU Chaoqian;YAO Yibin;ZHANG Bao;HE Lin;School of Geodesy and Geomatics,Wuhan University;Institude of Geodesy and Geophysics,Chinese Academy of Sciences;  
GGOS Atmosphere can provide a time resolution of 6 hours(at UTC 00:00,06:00,12:00,18:00)and a spatial resolution of 2.5 °×2 °gridded data,based on the data provided by European Centre for Medium-Range Weather Forecasts(ECMWF). Selecting radiosonde stations COSMIC date uniformly distributed in the global,and taking the at UTC 00:00,12:00of every day in 2010 as the true value,and using Bilinear interpolation method,we use GGOS Atmosphere grid data to calculate the annual average accuracy statistical results of all stations at the same station and same time,compared with the true value. The result shows that grid data provided by GGOS Atmosphere have high precision and reliability.
【Fund】: 精密工程与工业测量国家测绘地理信息局重点实验室开放基金资助项目(PF2012_14)
【CateGory Index】: P412.2
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