Issue | Description | Status 1 2 3 4
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Creating new RAS Terrain May Add 1.0 To Terrain Elevation
| Creating a new terrain in RAS Mapper will sometimes add 1.0 to the elevation values. Workaround: When creating a new terrain, specify the Vertical Conversion to "Custom Add:", and specify a value of 0. | |
Courant Map Not Plotting In 2D Areas In RAS Mapper.
| Plans that were ran in 6.4 will not show courant values in 2D Areas. Workaround: Run plan in 6.3.1 in order to view courant values in 2D Areas. | |
Re-compute of propery tables for 2D Area when updating 2D Connections
| 2D Area hydraulic tables are recomputed during simulation if the 2D Connection Elevations were updated through RAS Mapper. Workaround: Update elevations from the Geometric Data Editor. | |
Difference Plot for Floodway Encroachment Analysis
| The Difference Plot for Floodway Encroachment Analysis will not plot for multiple reaches at one time. Workaround: Plot individual River- Reach profile plots separately. | |
Unable to Import WPC - QPF data in GRIB2 format | The National Weather Service's Weather Prediction Center provides 2 national gridded precipitation products in GRIB2 format: Quantitative Precipitation Estimates (QPE) and Quantitative Precipitation Forecasts (QPF). Currently, RAS is unable to import the QPF dataset due to its compression type. Workaround: Use HEC-MetVue or HEC-Vortex to convert the QPF data to DSS before use in RAS. | |
Unable to Create Terrains from GeoTIFFs Exported from CAD Application | HEC-RAS geospatial libraries cannot determine the projection data stored in GeoTIFFs exported from a common CAD application. This results in a failure when importing the geotiff to a RAS terrain. Workaround: Reproject the terrain to a desired projection in a GIS application before importing. Alternatively, import the terrain in RAS before defining a projection in Mapper, then set the appropriate projection (spatialreference.org) following import. | |
GDAL Conflict when Opening RAS Mapper | "Error initializing the GDAL path variables. Please check HEC-RAS installation" error message is displayed when attempting to open RAS Mapper. | |