Page - 368 - in Book of Full Papers - Symposium Hydro Engineering

Fig. 8 River bed height variation on longitudinal section during each analysis period Fig. 9 Sediment transport volume during each analysis period Fig. 10 Sediment temporal change in river channel From above results, the riverbed rise (deposition) or decrease (erosion) was observed according to the observation target periods. Basically, during the period when large floods (typhoon) occurred, a riverbed rise (deposition) -5.0 -4.0 -3.0 -2.0 -1.0 0.0 1.0 2.0 3.0 4.0 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 (cm) BoxNo. 2014919-20141128 20141128-201543 201543-2015626 2015626-2016318 2016318-2016624 2016624-20161125 Deposition Erosion -25,000 -15,000 -5,000 5,000 15,000 25,000 ① ② ③ ④ ⑤ ⑥ ⑦ ⑧ Analysis period No. Sediment volume change by inSAR analysis Vs Deposition Erosion -20,000 -15,000 -10,000 -5,000 0 5,000 10,000 15,000 (m3) ④ ① ② ③ ⑤ ⑥ ⑦ ⑧ Frontal rain Typhoon18 Typhoon19 Typhoon11 Typhoon18 Typhoon16 Typhoon9 Deposition Erosion 368