“…Owing to the difficulties of obtaining field measurements or observations of large or extreme hydrological events in drylands, particular interest has been turning to the use of remote sensing techniques to visualise flooding extent, flooding patterns, and channel-floodplain dynamics along dryland rivers (e.g. Gumbricht et al, 2004;Ip et al, 2006;Milzow et al, 2009;Rowberry et al, 2011;Li et al, 2014aLi et al, , b, 2018Thito et al, 2016;Milan et al, 2018;Heritage et al, 2019). Many previous studies have focused on flood mapping from one or a few satellite images captured during or after floods, but these images may contain limited information due to low spectral and temporal resolution (e.g.…”