Abstract Taking 11 cities of Hebei province as examples, the correction models of MODIS PWV based GPS are studied. Firstly, we compare GPS PWV and MODIS PWV. There is good correlation and existing deviation between GPS PWV and MODIS PWV; the correlation coefficient is more than 0.879 and the root mean square error amounted to 2.31 mm. Secondly, we construct the cities’ and regional MODIS PWV correction models using linear regression method. Finally, we verify the reliability of city and regional models compared with GPS PWV. It is concluded that city and regional models of MODIS PWV can effectively improve the accuracy of MODIS PWV, while the root mean square error is less than 1 mm. The accuracy of MODIS PWV correction model can meet the application of weather forecasting.
WANG Yong,XU Xiaoyao,LIU Yanping et al. The Correction Model of MODIS PWV in Spring and Winter of Hebei Province Based on GPS[J]. jgg, 2018, 38(10): 1001-1004.
WANG Yong,XU Xiaoyao,LIU Yanping et al. The Correction Model of MODIS PWV in Spring and Winter of Hebei Province Based on GPS[J]. jgg, 2018, 38(10): 1001-1004.