Abstract:
The accuracy, spatial and temporal distribution characteristics of ESA soil moisture remote sensing products in Henan province were verified by using the data of soil moisture observation from January 1, 2012 to December 31, 2012 in Henan province and ESA CCI SM Soil Moisture Remote Sensing data. The results of a series of repeated experiments. The results showed that: (1)The inversion value of ESA soil volumetric water content correlated well with the measured value on the ground with R of 0.6765; RMSE was 0.0511, with a small deviation; the average difference was 0.0113, and the soil moisture value was close to each other.(2)ESA soil moisture remote sensing products could well develop the spatial distribution characteristics of soil moisture in Henan province.(3)ESA soil moisture data can accurately show the temporal and spatial variation trend of soil moisture in Henan province in each season to a certain extent, which was roughly in line with the actual situation, and has a certain applicability for the analysis of soil moisture change in Henan province.