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2.0 Graphical User Interface <br />This section provides the following information about the StateWB graphical user interface <br />(GUI): <br />2.1 Introduction <br />2.2 Generate a Water Budget <br />2.3 Generate a CU and Losses Summary <br />2.4 Generate the Colorado River Basin CU and Losses Report <br />2.1 Introduction <br />2.1.1 Water Budget <br />When using the StateWB GUI to calculate a water budget, the calculations are based on <br />information in the response file ( *.rwb). The response file provides model parameter settings <br />and either contains the input data (for average annual scenario) or lists the names of input data <br />files to be read by the model (for annual and monthly scenarios). <br />The GUI provides a means to define scenarios. It guides the user through browsing for input <br />files, setting the study period, and specifying the residual factor. The user can then save the <br />scenario information to a response file (.rwb). <br />The StateWB GUI allows the user to select from three different time scale scenarios to calculate <br />a water budget. The user can choose to run and view a subset of the available period of record <br />in the input files. <br />Average Annual — Using this time scale, provide a single value for each input component in <br />the water balance directly through the GUI. Each component represents the average annual <br />value for that component over the entire analysis period. <br />Annual — For this time scale, input files provide an annual total value for each year of the <br />analysis period. <br />• Monthly - For this time scale, input files containing monthly values are provided for each <br />year of the analysis period. <br />With Annual and Monthly scenarios, input files reflecting the annual or monthly time series data <br />must be formatted in the standard StateMod (.stm) format. The StateWB GUI does not check <br />that all user - supplied data are reasonable. It is the responsibility of the user to error check the <br />input data prior to calculating the water budget. <br />2.1.2 CU and Losses Summary <br />When generating a CU and Losses summary for a specific basin, the calculations are based on <br />information in the CU and Losses summary response file ( *.res). The response file provides <br />model parameters, including the reporting period, the percent of incidental losses to be <br />Page 6 <br />