The Soil Moisture Observation Date-quality Analysis in China

The observations of soil moisture are invaluable for researching the trends in the water cycle related to climate or land-surface cover change. Nevertheless, the data quality of soil moisture observation stay in a low level and the acquaintance of equipment operation monitoring is lacking, which lead the soil moisture data unavailable. This paper introduces a soil moisture observation system briefly we have designed based on the Atmospheric Observing System Operation and Monitoring. Then the emphasis is mentioned on the quality control of observational data. The vertical distributions of soil moisture observation in September for example are presented after the data quality control, and the soil in the north is dry and in the south is wet while considering the Yangtze River as the boundary.