Research on Quality Control Technology of Automatic Soil Moisture Data Based on CLDAS Soil Moisture Product
To comprehensively and timely grasp the dynamic status of soil moisture in the spatial region of Qinghai Province,this paper compared and analyzed the soil moisture and automatic soil moisture station data of land surface assimilation CLDAS based on the inversion of satellite remote sensing data from 2021 to 2022 from the correlation coefficient and root mean square error in Qinghai Province.The results showed that there had been a good correlation between CLDAS soil moisture and the data that was monitored by the automatic soil moisture station,and the relevant data of each station had passed the significance test at the 0.01 level.The root mean square error of most stations was within a reasonable range.In general,the CLDAS soil moisture data could make up for the lack of automatic stations in some areas of Qinghai in the spatio-temporal field,and had important reference value for agrometeorological services such as soil moisture monitoring and prediction and soil drought grade evaluation in the province.
万方数据
维普
