Auther: Dr. Anjali Rao, Mr. Vikram Singh
Abstract: Soil moisture is a critical parameter influencing the mechanical behavior and stability of soils in geotechnical engineering. Accurate assessment of soil moisture variability aids in better foundation design, slope stability analysis, and mitigation of geohazards. Microwave remote sensing has emerged as a reliable technique for large-scale and non-invasive soil moisture estimation due to its sensitivity to surface dielectric properties. This paper reviews the principles of microwave remote sensing for soil moisture assessment, comparing active and passive sensor technologies. Key satellite missions such as SMAP, Sentinel-1, and AMSR-E are evaluated for their applicability in geotechnical planning.
Keywords: Soil Moisture, Microwave Remote Sensing, Geotechnical Planning, SMAP, Sentinel-1, Active and Passive Sensors
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