Description: We defined associated and disassociated reaches along the original river kilometers provided by the navigational charts (column A) that were classified into 'right' for right bank, 'left' for left bank, and 'Away' for disassociated (Column B). We avergaed over 10-km reaches (column D) and measured the actual distance between the river kilometers provided by the navigational charts (column E) as they differed slightly from 10-km length. Erosion and Deposition (columns F and G) are the sum of columns D, E, G, H in the sheet 'GWSE_data'. We averaged the total area change by dividing by the absolute 10-km reachs length and 37 years between the satellite images used (1984 to 2021). We corrected for reaches that experienced both erosion and deposition over this time period by subtracting area changes detected by visual inspection of each time step.