Contents
| Table of Contents |
|---|
Introduction
Two modes of working of HEC-HMS are supported by the General adapter. Given a calibrated model, the modes of working are:
- Continuous mode, with state handling, suitable for operational forecasting;
- Event mode, without state handeling;
The technical implementations for both modes of working are quite similar. However it is important that models to be implemented in continuous mode, have also been calibrated for such mode. The same holds for event mode.
Present documentation will describe both mode of operation. Calibration is not a subject of this documentation, for details about operating model in the calibration mode please check standard HEC-HMS documentation.
Operating HEC-HMS Model and FEWS Adapter
The HEC-HMS model provides the compute engine for running a rainfall runoff model schematization for a basin or a system of basins. the modelling options include also routing. The HEC-HMS Adapter forms the interface between the FEWS Forecasting Shell and the HEC-HMS model.
The HEC-HMS compute engine is, as its name suggests, the component that actually performs the HEC-HMS simulation. This simulation is controlled from the FEWS Adapter, and all run time data such as initial and boundary conditions are passed through the adapter from and to the FEWS Forecasting Shell.
Applications
An earlier version of the HEC-HMS adapter has been implemented in three configurations (December 2010)Currently (December 2010) HEC-HMS is used in three configurations:
- FEWS Po (Paolo Reggiani)
- FEWS Georgia (Paolo Reggiani)
- FEWS Sudan (Jan Verkade)
Recently (July 2013), the adapter has been improved. The new adapter has been (or will) implemented in the following configurations:
- FEWS CEMIG (Jan Talsma, Dirk Schwanenberg)
- FEWS Salto Grande (Jan Talsma, Otto de Keizer)
- FEWS Colombia (Micha Werner, Otto de Keizer)
- FEWS Pakistan (Jan Talsma)
Download
Download of the model adapter is not available here: pls e-mail to Delft-FEWS Product Management for more information.
A tutorial A concise manual of how to add a HEC-HMS model as an adapter in FEWS is attached.
Interface between FEWS and HEC-HMS
The FEWS Adapter for HEC-HMS forms the interface between the FEWS Forecasting Shell and the HEC-HMS model. The adapter accepts the request from the Forecasting Shell to run HEC-HMS, and imports the required data provided by the Forecasting Shell.
This data shall be provided in a standardized XML interface format, the FEWS Published Interface. Once a HEC-HMS run has been completed, relevant results are passed back to the Forecasting Shell in the form of the standardized XML interface format.
The FEWS Adapter allows running of HEC-HMS by FEWS. The FEWS Adapter should be considered as a thin communication (software) layer on top the existing HEC-HMS engine. For more details about general structure of the General Adapter please check 05 General Adapter Module.
ID Mapping
The location parameters used in FEWS can be coupled to HEC-HMS DSS path names through ID-mapping. The configuration files for ID-mapping should be created separately for each HEC-HMS model. Please consult 08 Mapping Id's flags and units for more information on how to configure id mapping in FEWS system.
Directory structure
The data directories and configuration files that are required for operating the FEWS Adapter for HEC-RAS have been shown below.
Note that only binary and configuration files relevant to the HEC-RAS adapter are included, in a real configuration a lot more files can be involved used by another modules of the FEWS system.
| No Format |
|---|
+---bin
| <FEWS binaries>
\---FEWS_sa
|
+---Config
| +---ColdStateFiles
| | HECHMS_UpdateStates Default.zip....cold state files
| |
| +---IdMapFiles
| | IdExportHECHMS.xml.......................... custom mappings for the HEC-HMS variables and locations (also for import if needed)
| |
| +---ModuleConfigFiles
| | HECHMS_Forecast.xml............ main configuration file of the adapter
| |
| \---ModuleDataSetFiles
| HECHMS_model.zip.........zipped hechms files, transported to Models directory
|
\---Models
\---hec/hecras
+---bin........................................ directory which contains all HEC-RAS executables for Windows and Linux platforms
| DSSWriter.exe.......................... generates binary file containing detailed model output
| dss_writer
| GeomPreprocessor.exe................... converts geometry files from GUI ASCII format to binary
| geo_pre
| Steady.exe............................. performs steady flow simulations
| steady
| Unsteady.exe........................... performs unsteady flow simulations
| unsteady
| DFORMD.DLL
| DFORMDD.DLL
| MSVCRTD.DLL
| libmtsk.so.1
| libwldelft_native.so
| module-adapter-hec-ras.jar............. pre- and pos- adapter, Coverts HEC-RAS data files to/from FEWS-PI format
| nwsras.jar............................. main library used by the adapter, reads and writes HEC-RAS data files
| heclib6-pc.dll
| javaHeclib.dll
| castor-0.9.5p.jar...................... the rest of the files below are FEWS dependencies used by adapter
| commons-cli-1.1.jar
| Delft_FEWS_castor.jar
| Delft_FEWS_schemas.jar
| Delft_PI.jar
| Delft_PI_castor.jar
| Delft_Util.jar
| jaxp-api-1_3.jar
| jaxp-dom-1-3.jar
| jaxp-sax-1_3.jar
| jaxp-xalan-1_3.jar
| jaxp-xercesImpl-1_3.jar
| log4j-1.2.14.jar
| serializer.jar
| TimeSeriesImport.jar
| xalan.jar
| xerces-c_2_8.dll
| xercesImpl.jar
| xml-apis.jar
|
\---model
| run_info.xml.......................... a file generated by FEWS containing paths, run options
|
+---input.................................. input directory of the adapter, input FEWS-PI time series files
| inputs.xml
|
+---log.................................... log messages written by the hec-ras adapter
| adapter.xml
|
+---output................................. contains HEC-RAS output converted from the binary and dss output files
| output.xml
|
\---work................................... working directory of the adapters
ctfld2ras.b01
ctfld2ras.b02
ctfld2ras.b03
ctfld2ras.c02
ctfld2ras.f04
ctfld2ras.g02
ctfld2ras.p01
ctfld2ras.p02
ctfld2ras.p05
ctfld2ras.prj
ctfld2ras.r01
ctfld2ras.r02
ctfld2ras.r03
ctfld2ras.r05
ctfld2ras.u01
ctfld2ras.u02
ctfld2ras.x02
|
Configuring HEC-RAS adapter
HEC-RAS model adapter follows standard way of integrating external models into the Delft-FEWS system by use of General Adapter. For more details about configuration of General Adapter please check 05 General Adapter Module.