Fig. 3From: Potential impact of flooding on schistosomiasis in Poyang Lake regions based on multi-source remote sensing imagesWaterbody extraction from remote sensing image data in Poyang Lake areas. Image data were collected from ESA Earth Online database of Sentinel-1B dual-polarized (HV + HH) SAR data on 15 May 2020, before the flood (a), and on 14 July 2020, during the period of the flood peak (b)Back to article page