In order to setup a HEC-FIA Flood Damages Reduced Simulation, data collection is needed from HEC-ResSim and HEC-RAS.

HEC-ResSim

From HEC-ResSim you will need:

  • the common computation points which are typically the gages and junctions where HEC-ResSim calculates flow data
  • shapefile of the reservoirs
  1. To get these, open your HEC-ResSim model and go to your Watershed Setup Module. Then go to Watershed - Export - Configuration Elements.
    HEC-ResSim Map Window

  2. Select your Configuration from the Drop Down and then check the box for Computation Points and Reservoirs.
  3. In the Export to Shapefile column, select the  and navigate to where you would like to save your files. For this model, I have a folder called ExportData within my HEC-FIA folder. Save both HEC-ResSim elements to the same output folder.
    HEC-ResSim Export Configuration
  4. Close ResSim.

HEC-RAS

From HEC-ResSim you will need:

  • Extent of Geometry
  • Rivers
  • Cross Sections (if applicable)
  • Storage Areas (if applicable)
  • 2D Flow Area (if applicable)
  1. To get these, open your HEC-RAS model, and launch RAS Mapper.
  2. In the case that your HEC-RAS model has multiple geometries, identify the geometry that is actually being used for your model. Then right-click on the geometry name itself, go to Export Layer - Create Polygon Shapefile of Geometry Region
    RAS Mapper Export

  3. Navigate to the ExportData folder where the HEC-ResSim shapefiles were placed and name the file Geometry_Region
    Save Exported Data

  4. For the Rivers, right-click on Rivers and go to Export Layer - Save Layer to Shapefile
    Export Rivers From RAS Mapper

  5. Navigate to the ExportData and name the file Rivers
    Save Exported Rivers

  6. If you have cross-sections, right-click on Cross Sections and go to Export Layer - Save Features to Shapefile. Navigate to the ExportData folder and name it CrossSections
  7. If you have storage areas, right-click on Storage Areas and go to Export Layer - Save Features to Shapefile. Navigate to the ExportData folder and name it StorageAreas
  8. If you have 2D Flow Areas, right-click on 2D Flow Areas and go to Export Layer - Save Layer to Shapefile. 
    Export 2D Flow Areas

  9. Navigate to the ExportData and name the file 2D_Areas

Preparing Exported Model Data for Import into HEC-FIA

  1. Check the folder of the data that was just exported. If you do not see a prj file associated with each shapefile, you will want to set a projection for each file. 
  2. Launch ArcGIS Pro
  3. Open the Geoprocessing tab and go to Data Management Tools - Projections and Transformations - Define Projection
  4. Most CWMS models will be using the same Projection - Albers Equal Area Conic. The easiest way to define the projection is to use another shapefile that already has a projection defined.
    ArcGIS Pro Define Projection
     
    1. To define a projection using another shapefile, select the globe  near the upper right and navigate to the defined shapefile. Once it comes up, you can pin it to your favorites to easily define the rest of your shapefiles.
    2. If you do not have another shapefile with a Defined projection you can navigate to it by selecting Projected Coordinate System - Continental - North America - USA Contiguous Albers Equal Area Conic USGS
  5. Once the projection is selected, press OK and then Run.
    Define Projection

  6. Repeat for all shapefiles.

There is a Project Tool in addition to the Define Projection Tool. The Project Tool will convert the the spatial data from one projection into another projection. If you are only missing the projection you will want to make sure you only select Define Projection.