Supplementary Material: Automated Extraction of Inundated Areas from Multi-Temporal Dual-Polarization RADARSAT-2 Images of the 2011 Central Thailand Flood

<p>Supplementary figures for Figure 4. Automated threshold values using the neighborhood valley method of water references in the red elliptical areas from the HH, HV and HH + HV sigma-naught values. The dashed lines represent unimodal distributions, and the solid lines represent bimodal distributions.</p>