In HEC-RTS, a watershed is a set of data, information, models, and images that represent watershed lands and the channels, gages, and water control features within the watershed. The Setup module is the grouping of commands for watershed setup. These are commands for configuring inputs, models, and outputs that describe a watershed's behavior. You develop a visual representation of the watershed to display in HEC-RTS that is map-based. This chapter describes the Setup module, which includes an overview of the Setup module interface, how to create a new watershed, and reports on watershed setup.
In the Setup module, you configure a watershed's physical arrangement, including maps and geo-extents, time series icons, and other geo-referenced data. Once you have setup a watershed, you will be able to use the data you have defined within HEC-ResSim, HEC-FIA, and other geo-referenced HEC-RTS applications.
Because the order of program execution (Program Order) is a fundamental part of the watershed setup, you should define it early in the process of constructing datasets for your watershed. You establish the program order in the Setup module. This involves determining the set of programs that HEC-RTS might execute, the order of program execution, and the data flow for forecasting. You may also define supplemental software applications and add the supplemental software applications to the program order. A supplemental program is a software application or script that you develop and by default is not included with HEC-RTS.