Converting a NEXRAD Rainfall Map into a Flood Inundation Map by ...

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• ScriptFiles – folder with all script files associated with DLL componentso Radar2GDB.vbso TSTransfer. vbso GDB2HMSDSS. vbso HMSCaller. vbso DSS2GDB. vbso GDB2RASDSS. vbso RASCaller. vbso SDF2XML. vbso XML2XSElev. vbso Freq2Filename. vbso GetFreqSeries.vbso AppendTable. vbso DeleteTableRecords. vbso DStorm2HMS.vbso CallDStorm. vbso AccessFTP. vbs• SourceCode – folder that contains the source code for the user-defined DLLso Radar2GDB.vbpo TSTransfer.vbpo GDB2HMSDSS.vbpo HMSCaller.vbpo DSS2GDB.vbpo GDB2RASDSS.vbpo RASCaller.vbpo SDF2XML.vbpo XML2XSElev.vbpo Freq2Filename.vbpo TableOps.vbpo DelTableRecords.vbpo DStorm2HMS.vbpo AccessFTP.vbp• RawNEXRAD_Data: Contains the NEXRAD precipitation input text filesfor the July 2002 storm event in Texas• Grids_TINs: Contains rasters and TINs needed to support the computationsin Map2Map• WorkOut: Contains intermediate files like rasters, and TINs to supportMap2Map computations• HEC_Program_Installation - contains setup programs for installing HEC-HMS and HEC-RAS216
o hmsproj - contains folders with HEC-HMS setup files for diverse userdefinedand sample basins like the Salado Creek pilot projecto rasproj – contains folders with HEC-RAS setup files for a diverseuser-defined and sample river segments like the Rosillo Creek pilotproject• DigiMaps – Contains design storms for Texas in the form of grid rainfallmaps generated by Halff Associates, Inc.• Docs_Shows – Documents and Power Point presentations describing theMap2Map application2 ModelBuilder ModelsInside the Map2Map toolbox (Map2Map.tbx) there are various ModelBuilderModels (workflow of sequential processes) representing several Map2Mapversions. A brief description of these model versions follows:Map2MapLocal: Map2Map Model application that is being fed withprecipitation data stored in the local computer system.Map2MapFTP: Map2Map Model application that is being fed with precipitationdata stored in a remote FTP server.Map2MapDesign: Map2Map Model application that is being fed with syntheticprecipitation data in the form of grid rainfall maps for various frequencies anddurations.Map2MapLocal_ArcView: Map2Map Model application that is being fed withprecipitation data stored in the local computer system and that uses only standardGIS tools available under Arc View license.217
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Table of ContentsList of Figures ..
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4.1.12 The XML2GDB Script Tool ....
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Figure 3.24 Components of a Steady
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Figure 4.50 Create Flood Inundation
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Chapter 1 Introduction1.1 BACKGROUN
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for undeveloped or natural conditio
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All the previous statements favor t
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science, and engineering models as
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Different approaches have been used
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generic and self-described formats,
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externally executed from a central
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though GIS-based, the system does n
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Geographic Information Systems, Arc
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By defining the three basic functio
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containing an inventory of damage s
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Data Models in charge of storing an
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Figure 3.1 Floodplain Modeling Sche
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either with Schematic Nodes (for Su
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channel cross sections, available H
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sequential data, called pathnames,
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Figure 3.5 NEXRAD square cells (873
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geodatabase formatted with the Arc
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The CrossSection feature class in A
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geodatabase (under Arc Hydro format
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3.4.4 External Execution of HEC-RAS
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analysis. In particular, GIS has be
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3.5.3 Model-Specific ElementsA geog
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Figure 3.11 Geographic and Hydrolog
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For HEC-RAS, the connectivity is ac
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cross sections in the hydraulic mod
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Section line for a RAS cross-sectio
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from the geodatabase back into the
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Figure 3.19 Relationship Classes fo
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Figure 3.20 DSS Time Series content
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Figure 3.22 Extended Time Series Co
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Figure 3.23 Creating a Flow File fr
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etween the HEC-DSS file system and
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The more specific steps for the pos
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Chapter 4 Map2Map Components4.1 MOD
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A subset of NEXRAD time series data
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A folder location is also provided
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Figure 4.4 Radar2GDB Model Componen
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ecords. Figure 4.6 illustrates the
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Figure 4.8 Time Series Tables and R
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having different formats and that a
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Part E: Time Interval of stored dat
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execution time and for their corres
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on the steps needed to transfer the
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Len_sBTime (I): The length of the s
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52: Invalid precision exponent spec
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methods: user hyetograph, user gage
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Once the hyetograph is defined (for
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The resulting runoff hydrograph is
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Thus, the time period for the entir
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After the ZSRTS subroutine is execu
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Figure 4.12 HMSCaller Model Compone
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ased on a process handle (a program
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These simple command line statement
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To programmatically accomplish this
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to provide the hydraulic input for
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information into the extended Arc H
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The HydroJunction, used for connect
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Once the identification of flow cha
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As with the GDB2HMSDSS, the first t
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4.1.7 Time Series ExtractionOnce th
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accomplish this have been developed
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straight forward for all time stamp
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As opposed to HEC-DSS, the Arc Hydr
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Table 4.4: Variable Type Equivalenc
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ZCAT DSS subroutines) and stored in
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Table 4.5: Time Interval Equivalenc
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There are not specific valid values
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catalog list. For the DSS2GDB appli
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4.1.9.1 Opening the HEC-DSS fileThe
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channel (the hydraulic representati
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the model if the new configuration
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the main program as a public module
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Then, the RASCaller application acc
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Figure 4.31 ProjectName Property in
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Figure 4.33 RunSteady Method in RAS
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Figure 4.34 ExportGIS Method in RAS
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data structures delivered by every
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The two most well-known models for
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The water surface elevations obtain
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Once the water surface elevations f
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Generate a suitable water surface m
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Page 183 and 184: Figure 4.49 Create Flood Polygon Mo
Page 185 and 186: Int OperationThe Integer operation
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Page 193 and 194: Figure 4.55 Workflow for Extracting
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Page 205 and 206: 5.6 A TRUE SPATIAL APPROACHAutomate
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Page 213 and 214: The first step consists in installi
Page 215 and 216: 3.7 Map2Map UsageAll of the model b
Page 217 and 218: Congratulations! You have successfu
Page 219 and 220: Once the simplified version of Arc
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Page 223 and 224: Second, the user needs to modify th
Page 225: Appendix BMap2Map CD Content1 CD Da
Page 229 and 230: Goodchild, M.F., Steyaert, L.T., an
Page 231 and 232: Olsen R. J., Beling, P. A., Lambert
Page 233 and 234: Werner, M. G. F. 2001. Impact of gr
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Converting a NEXRAD Rainfall Map into a Flood Inundation Map by ...

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