HEC-RAS to TUFLOW: Difference between revisions
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=Introduction=
This page outlines some utilities that may be used to convert HEC-RAS model files into a format which is compatible with TUFLOW. <br>If you have any suggestions to be included in these pages, please
= Geometry Conversion (sdf_to_gis.exe) =
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= Geometry Conversion (miTools) =
MiTools is a MapInfo add-on that is available for download from the TUFLOW <u>[
MiTools can be used to convert HEC-RAS geometry cross-section data into mif/mid spatial and csv tabular format for direct input into TUFLOW.<br><br>
The tool provides various user options, such as:
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= Boundary Conditions (HEC-DSS) =
The
HEC-DSS is a database system for time series, curve, gridded data and more, developed by the U.S. Army Corps of Engineers Hydrologic Engineering Center (HEC). See their website at https://www.hec.usace.army.mil/software/hec-dss/ for more information. The format is used for HEC developed software for data input and output. Rather than convert HEC-DSS time-series curves for use in TUFLOW, DSS data used by a HEC-RAS model can now also be used directly in TUFLOW.<br>
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By default, TUFLOW uses the first point in the time-series curve as TUFLOW time-zero. This can be changed using the TCF command “HEC-DSS Start Date” to identify the date/time that should be used for time-zero. The date should be in the isodate format: yyyy-mm-dd hh:mm:ss, where the time portions are optional.<br>
:<font color="blue"><tt>HEC-DSS Start Date </tt></font> <font color="red"><tt>== </tt></font> <tt>2022-01-01</tt> <br>
Note: Non-time series data such as gridded data from a HEC-DSS file is not supported at this time. Contact [mailto:support@tuflow.com support@tuflow.com] to request other features that would be beneficial to your workflows.
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=Frequently Asked Questions (FAQ)=
==Is there a way to transfer a complete HEC-RAS 2D model directly to TUFLOW?==
For 2D HEC-RAS models, we recommend requesting the raw input datasets used in the HEC-RAS model, if possible, and then reconstructing a TUFLOW model from scratch. We have found that this method is easier and results in higher quality data input for TUFLOW, as opposed to using data that has been downscaled to the HEC-RAS grid resolution. Additionally, HEC-RAS and TUFLOW use different grid mesh formations, which makes a direct automated conversion impractical.
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