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

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Figure 4.21 Filtering HEC-DSS records through Arc HydroThe Figure 4.21 depicts how the geographic framework is used to filterand select the required HEC-DSS entries and transfer the B part site location tothe DSSTSType table in Arc Hydro to fully reference the DSS records. Thus,once the B part is selected from the geographic framework, the DSS pathnamesare selected and the extracted B parts used to populate DSSTSType in Arc Hydro.The D PartThe starting date of the data block (HEC-DSS card) is also extracted fromthe DSS catalog. Once the DSS records representing flow change points areidentified (B part filter), <strong>by</strong> using the geographic framework, the D part isextracted from the DSS catalog file (.dsc file generated <strong>by</strong> the ZOPNCA and130
ZCAT DSS subroutines) and stored in the DSSTSType catalog table in ArcHydro.Figure 4.22 D part in Arc Hydro’s DSSCatalogThe E PartThe time interval of the stored time series data is also extracted from theDSS catalog file (.dsc file extension) and stored in the DSSTSType catalog tablein Arc Hydro.131
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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
Page 89 and 90: Figure 4.8 Time Series Tables and R
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Page 93 and 94: Part E: Time Interval of stored dat
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Page 99 and 100: Len_sBTime (I): The length of the s
Page 101 and 102: 52: Invalid precision exponent spec
Page 103 and 104: methods: user hyetograph, user gage
Page 105 and 106: Once the hyetograph is defined (for
Page 107 and 108: The resulting runoff hydrograph is
Page 109 and 110: Thus, the time period for the entir
Page 111 and 112: After the ZSRTS subroutine is execu
Page 113 and 114: Figure 4.12 HMSCaller Model Compone
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Page 117 and 118: These simple command line statement
Page 119 and 120: To programmatically accomplish this
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Page 125 and 126: The HydroJunction, used for connect
Page 127 and 128: Once the identification of flow cha
Page 129 and 130: As with the GDB2HMSDSS, the first t
Page 131 and 132: 4.1.7 Time Series ExtractionOnce th
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Page 137 and 138: As opposed to HEC-DSS, the Arc Hydr
Page 139: Table 4.4: Variable Type Equivalenc
Page 143 and 144: Table 4.5: Time Interval Equivalenc
Page 145 and 146: There are not specific valid values
Page 147 and 148: catalog list. For the DSS2GDB appli
Page 149 and 150: 4.1.9.1 Opening the HEC-DSS fileThe
Page 151 and 152: channel (the hydraulic representati
Page 153 and 154: the model if the new configuration
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Page 157 and 158: Then, the RASCaller application acc
Page 159 and 160: Figure 4.31 ProjectName Property in
Page 161 and 162: Figure 4.33 RunSteady Method in RAS
Page 163 and 164: Figure 4.34 ExportGIS Method in RAS
Page 165 and 166: data structures delivered by every
Page 167 and 168: The two most well-known models for
Page 169 and 170: The water surface elevations obtain
Page 171 and 172: Once the water surface elevations f
Page 173 and 174: Generate a suitable water surface m
Page 175 and 176: Figure 4.42 2 Foot-Contour Lines fo
Page 177 and 178: Figure 4.43 Rosillo Creek’s terra
Page 179 and 180: standard ArcGIS tool), is used in M
Page 181 and 182: By doing this, the water surface el
Page 183 and 184: Figure 4.49 Create Flood Polygon Mo
Page 185 and 186: Int OperationThe Integer operation
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design storm input given its possib
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Figure 4.55 Workflow for Extracting
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for it. Finally, the DigitalStorm2H
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model for water resources (Maidment
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Hydro, the HydroJunctionHasCrossSec
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involved in the transformation of r
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process model in sequence. For the
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5.6 A TRUE SPATIAL APPROACHAutomate
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time series between NEXRAD, the HEC
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value of the entire runoff hydrogra
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case study. Bigger watersheds (abov
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The first step consists in installi
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3.7 Map2Map UsageAll of the model b
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Congratulations! You have successfu
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Once the simplified version of Arc
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cells that cover your study area an
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Second, the user needs to modify th
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Appendix BMap2Map CD Content1 CD Da
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o hmsproj - contains folders with H
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Goodchild, M.F., Steyaert, L.T., an
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Olsen R. J., Beling, P. A., Lambert
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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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