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

Table 4.9: HEC-DSS Descriptors for Data ExchangeThe GDB2RASDSS application reads the TimeSeries table in Arc Hydroto get the time series values for each flow change location. The values are alsostored in the GDB2RASDSS tool using a 2-D array in which the first dimensionrepresents the number of the flow change point and the second dimensionrepresents the number of the time series value. The GDB2RASDSS applicationloops through each flow change location in the time series table implementing aquery filter definition to ensure efficiency in the search process and that uses theFeatureID (HydroID of the HydroJunction) of the flow change point as the filtercriterion.4.1.9.3 Accessing the CrossSection Feature ClassIn the same manner as the Schematic Nodes (for the hydrologicrepresentation in GIS), the Cross Sections describing the geometry of the river140