Temporal and Spatial Associations of L-Band Fully Polarimetric SAR Metrics with Soil Moisture over a Wet Volcanic Ash Soil Field
L-band synthetic aperture radar (SAR) offers repeated observations of soil moisture, but its ability to track field-averaged changes and within-field differences under wet conditions requires separate assessment. We compared 21 fully polarimetric ALOS-2/PALSAR-2 acquisitions with time-domain reflectometry (TDR) observa...