1. Total area (blue and orange only) within Itu region (green outline) is 1295 sqkm. Another 244 sqkm is either masked (grey) or upland (black) or unclassified (black).

2. Total area (excluding grey and black) within Itu region (green outline) is 1295 sqkm. Another 244 sqkm is either masked (grey) or upland (black) or unclassified (black).

4. Floodmaps are in floodmap_4clas_Itu_th0p2.img 24 bands 4 colors: black is unclass or upland grey is masked blue is flooded orange is unflooded Classification is in s1_sam_supersize_to_r1_byte_masked.img Radarsat is in pixag_4to1_24dates_itu-subimg_v1.img Wetmask is in wetmask_25m_UTM_itu.img All in dir LBA24/RADARSAT/neg/neg_w_f450/sig/classif/flood/thresh/

5. blackgreyorangeblue uplandmaskedotherunfloodedflooded DN01234 band 1 Npts11877027141201191654880638 2 Npts118770271412010625111009781 3 Npts118770271412010097761062516 4 Npts11877027141209300791142213 5 Npts11877027141208634721208820 6 Npts11877027141208651821207110 7 Npts11877027141208853221186970 8 Npts11877027141209158391156453 9 Npts11877027141209604491111843 10 Npts11877027141201078145994147 11 Npts11877027141201136599935693 12 Npts11877027141201104648967644 13 Npts118770271412010467961025496 14 Npts11877027141209442501128042 15 Npts11877027141209284121143880 16 Npts11877027141208981801174112 17 Npts11877027141208947431177549 18 Npts11877027141208532481219044 19 Npts11877027141208531871219105 20 Npts11877027141208954901176802 21 Npts11877027141209351201137172 22 Npts118770271412010071011065191 23 Npts11877027141201083137989155 24 Npts11877027141201115990956302 Data table Results of simple floodmap area statistics

6. Example where Itu region is crudely outlined and may contain Rio Negro floodplain.

7. Depth at the Itu gauge, in cm, versus dates. Flooded area in sq km and area fraction are listed for each date.

8. Fraction of area mapped as flooded versus dates. Flooded area in sq km and Itu depth gauge in cm are listed for each date.