2021 IEEE International Geoscience and Remote Sensing Symposium IGARSS | 2021
Soil Moisture Temporal Stability Analysis in Genhe Watershed Observation Network
Abstract
Understanding the spatial variability and temporal stability of soil moisture can optimize the layout of ground monitoring, which is of great significance for validation of coarse resolution remote sensing soil moisture products and regional scale water resources management. In this paper, we took a forest-steppe ecotone zone in Genhe watershed as the study area, and analyzed the temporal stability of the Genhe Watershed Observation Network. Based on the time-stable characteristics of soil moisture within monitoring network, we discussed which sites were time-stable, and investigated the representative sites which could estimate watershed and SMAP L3_SM_P products pixel scale average soil moisture. Our work provided a scientific basis for the monitoring and management of soil moisture in Genhe watershed, and it would also be helpful for determining the spatial and temporal representative site in other regional or satellite scales.