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Overview

The RDycore mesh (Turning_30m_with_z.updated.with_sidesets.exo) for the Houston Harvey flooding problem is in the Exodus II format and consist of 2,926,532 grid cells. The mesh also includes a single edge sideset that consists of 13 (=num_side_ss1) edges, which are identified with the labels elem_ss1 and side_ss1 in the mesh file.

image

The topography based on the 30m DEM dataset for the study domain is shown above. The white crosses denote the locations of high water mark measurements from the USGS, and the red asterisks are the USGS gauges with the gauge number. The black dashed lines represent two dams used as flood control reservoirs: Addicks (the upper one) and Barker (the lower one). The black solid line shows the extent of major channels.

The following two examples for the Hurricane Harvey flooding showcase different modeling capabilties of the RDycore driver:

  1. critical-outflow-bc:

    • Uses spatially-distributed and temporally-varying rainfall dataset.
    • A critical outflow boundary condition is applied on the 13 edges.

  2. ocean-bc:

    • Uses a spatially-averaged and temporally-varying rainfall dataset.
    • A time-varying, but spatially-homogeneous ocean water height boundary condition is applied on the 13 edges.