SDC Sphy Manual
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  • manual
    • SPHY Manual
      • 1. Introduction
      • 2. Theory
        • 2.1 Background
        • Modules
        • Reference and potential evaporation
        • Dynamic vegetation processes
        • Snow processes
        • Glacier processes
        • Soil water processes
        • Soil erosion processes
        • Routing
      • 3. Applications
        • Irrigation management in lowland areas
        • Snow- and glacier-fed river basins
        • Flow forecasting
      • 4. Installation of SPHY
      • 5. SPHY model GUI
        • 5.1 Map canvas layers and GUI interactions
        • 5.2 Top menu buttons
        • 5.3 General settings
        • 5.4 Climate
        • 5.5 Soils
        • 5.6 Groundwater
        • 5.7 Land use
        • 5.8 Glaciers
        • 5.9 Snow
        • 5.10 Routing
        • 5.11 Report options
        • 5.12 Running the model
        • 5.13 Visualizing model output
      • 6. SPHY model preprocessor v1.0
        • 6.1 Overview
        • 6.2 General settings
        • 6.3 Area selection
        • 6.4 Modules
        • 6.5 Basin delineation
        • 6.6 Stations
        • 5.7 Meteorological forcing
      • 7. Build your own SPHY-model
        • Select projection extent and resolution
        • Clone map
        • DEM and Slope
        • Delineate catchment and create local drain direction map
        • Preparing stations map and sub-basins map
        • Glacier fraction map
        • Soil hydraulic properties
        • Other static input maps
        • Meteorological forcing map series
        • Open water evaporation
        • Soil erosion model input
        • Sediment transport
        • Reporting
      • Appendix 1: Input and Output
      • Appendix 2: Hindu Kush-Himalaya database
      • References
      • Copyright
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  3. 6. SPHY model preprocessor v1.0

6.2 General settings

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Last updated 1 year ago

6.2.1 Folder selection

After starting a new project the user first needs to select the folder where the database can be found. This is the folder where the metadata.cfg file of the corresponding database is located. Figure 10 shows the structure of the folder where the Hindu Kush-Himalaya database is located. Select this folder or the folder from another database by clicking the Select database folder button.

The second step involves creating a folder on your hard disk where you want the processed model input data to be created. A logical folder name would be \input and create it inside your SPHY model source folder, e.g. c:\SPHY2.0. Of course you are free to create a different folder name on a different location on your hard disk. Now select the created folder by clicking the Select output folder button.

The final step is to select the PCRaster bin folder. The location of this folder was chosen in section 3.1.3. Select this folder by clicking the Select PCRaster bin folder.

After completing the Folder selection part the GUI should look something like Figure 59. Folders may look different depending on the locations you have selected on your computer.

6.2.2 Coordinate system

The next step is about defining the Coordinate Reference System (CRS). Since the SPHY model has been developed to work with a WGS84 UTM zone CRS, you need to specify the UTM zone for your area of interest. If you do not know in which UTM zone your area of interest is located, then you click the show UTM map. This will pop-up an image containing UTM zones. After you have defined the UTM zone for your area of interest you can use the spinbox to set the value and the radio button to specify north (N) or south (S).

6.2.3 Meteorological forcing period to process

If you want the GUI to create a meteorological forcing dataset, then you need to specify the start and end date for the period you want to run the model for. You need to make sure that the selected period is covered by the database (check Appendix belonging to the database) that you have selected. If you decide to use your own station data for creating the meteorological forcing data (Section 6.7), then you need to make sure that the selected period is covered by the data specified in your *.csv files.

You can leave defaults here if you do not plan to use the GUI to create forcing data.

Figure 58: Example of the structure of the HMA database.
Figure 59: Completing the folder selection part of the SPHY model preprocessor GUI.