Validation of SMAP soil moisture products over the Great Lakes region

Authors: Xiaoyong Xu*,
Topics: Water Resources and Hydrology, Remote Sensing
Keywords: SMAP, soil moisture, remote sensing
Session Type: Paper
Day: 4/6/2020
Start / End Time: 8:00 AM / 9:15 AM
Room: Capitol Ballroom 2, Hyatt Regency, Fourth Floor
Presentation File: No File Uploaded


The NASA Soil Moisture Active Passive (SMAP) mission represents the current state-of-the-art in satellite microwave remote sensing of soil moisture. So far, much of our knowledge on SMAP soil moisture products over the Great Lakes region originates from the evaluation studies over CONUS, many of which included only sparse in situ measurements for this region. As such, the studies may under-represent the characteristics of SMAP variability in this domain. In this work, the SMAP Level-2, Level 3, and Level-4 soil moisture products are evaluated over the Great Lakes region using in situ measurements taken from the Michigan Automated Weather Network. Overall, all SMAP products are capable of effectively capturing the observed temporal variability of surface soil moisture. The SMAP Level-4 root-zone soil moisture product showed promising. The evaluation results provide insights on the application of these products in hydrological and meteorological studies for this region.

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