Journal of Geographical Sciences, Volume. 30, Issue 10, 1649(2020)

Using LiDAR-DEM based rapid flood inundation modelling framework to map floodplain inundation extent and depth

Yongqiang ZHANG*
Author Affiliations
  • Key Laboratory of Water Cycle and Related Land Surface Processes, Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China
  • show less
    Figures & Tables(11)
    Location of research area (a); spatial pattern of 2-m resolution LiDAR-DEM and locations of the three gauges (b)
    Flowchart showing how the LiDAR - RIM framework works
    An example for estimating inundation depth from the 2 m LiDAR-DEM water surface to flood water surface at the gauge site 410005
    A schematic figure showing flood flow directions over the floodplain
    Unconstrained inundation depth mapping for March 2012 flood (a) and December 2010 flood (b)
    Water bodies (black) extent obtained using Landsat ETM+ images taken on March 20, 2012 (a) and January 5, 2011 (b), respectively (red polygons are the boundaries of actual inundation extent (see Figures 6c and 6f); inundation extents controlled by flood mass balance (b and d); inundation extents obtained by considering flood mass balance control together with infiltration and open water evaporation (c and f). (a)-(c) are for the March 2012 flood; (d) and (f) are for the December 2010 flood.
    Relationships between the river stage and inundation volume (a and c); relationships between river stage and inundation area obtained using different resolutions from 2 m to 40 m (b and d). The upper panels (a), (b) and (c) are for the March 2012 flood; the lower panels (b), (c) and (d) are for the December 2010 flood.
    Two cross-sections obtained along the Murrumbidgee River using 2-m and 30-m LiDAR-DEM and 30-m SRTM-DEM
    Inundation extents obtained using SRTM-DEM considering flood mass balance control for the March 2012 flood event (a) and the December 2010 flood events (b)
    Relationships between the river stage and inundation volume for reach 410005 to 410036 (a) and the reach 410036 to 410082 (b)
    • Table 1.

      Inundation depth for the three gauging sites and for the two flood events. Maximum inundation depth is the difference between maximum river stage and the depth from zero gauge to the LiDAR-DEM water surface.

      View table
      View in Article

      Table 1.

      Inundation depth for the three gauging sites and for the two flood events. Maximum inundation depth is the difference between maximum river stage and the depth from zero gauge to the LiDAR-DEM water surface.

      Gauging site or digitized reachDepth from zero gauge to LiDAR- DEM (m)Maximum river stage (m)Maximum inundation depth (m)
      December 2010 floodMarch 2012 floodDecember 2010 floodMarch 2012 flood
      Gauging site4100051.97.998.956.097.05
      4100361.37.387.926.086.62
      4100820.97.177.546.276.64
      Digitized reach410005-410036--6.086.84
      410036-410082--6.186.63
    Tools

    Get Citation

    Copy Citation Text

    Yongqiang ZHANG. Using LiDAR-DEM based rapid flood inundation modelling framework to map floodplain inundation extent and depth[J]. Journal of Geographical Sciences, 2020, 30(10): 1649

    Download Citation

    EndNote(RIS)BibTexPlain Text
    Save article for my favorites
    Paper Information

    Category: Research Articles

    Received: Mar. 10, 2020

    Accepted: Jul. 10, 2020

    Published Online: Apr. 21, 2021

    The Author Email: ZHANG Yongqiang (zhangyq@igsnrr.ac.cn)

    DOI:10.1007/s11442-020-1805-9

    Topics