Figure 1

Geographical location (a. Submerged area of upper and lower reaches of the Baige landslide dam; b. Regional location of the study area; c. Longitudinal profile of the main channel downstream of the Baige landslide dam)

Figure 2

Landslide profile (a. Geomorphic characteristic of the Baige landslide; b. Cross section of the entire Baige landslide (modified from Chen et al*2021); c. Cross section of the Baige landslide deposition)

Figure 3

Flow chart of flood simulation for potential outburst floods

Table 1

Manning coefficient of land-use types for flood simulation

Figure 4

Barrier lakes at different elevations (a. Plan of flood area in upstream of barrier dam; b. Flood level of typical townships upstream of the barrier dam; c. Profiles of flood area in upstream of the barrier dam)

Figure 5

The “10.10” bank slope disaster (a. 5 km downstream of Boluo Town; b. Tagong Village; c. Boluo Town)

Figure 6

The “11.3” flood disaster (a. Boluo township government building; b. Boluo Temple; c. Jinsha Town)

Figure 7

Landslides induced by the fluctuation of water level in barrier lake area

Table 2

Statistics on the basic information of typical landslide deformation induced by barrier lake

Figure 8

Discharge variation at the dam (a. The “10.10” break flood process of barrier dam; b. The “11.3” break flood process of the downstream dam)

Figure 9

Flood disaster loss in the upstream and downstream of the dam

Figure 10

Land type of flood inundated area in Shigu Town

Figure 11

The field investigation area, as shown in Figure 10 (a. Right inundated area of Jinsha River, Shigu Town; b. Left inundated area of Jinsha River, Shigu Town)

Figure 12

Flood simulation in the Shigu region (a. Section cross selection of simulated reaches; b. Flood inundation elevation)

Figure 13

Time of flood arrival in the downstream catchment of the dam

Figure 14

Warning process of outburst floods