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ARCSWAT TUTORIAL PDF

ArcSWAT extension of ArcGIS creates an ArcMap project file that contains .. In this tutorial we will concentrate on preparing the rest of the input data for. I wish to apply the SWAT tool in modeling the streamflow of a particular river basin, . watch the tutorial series of ArcSWAT here we made step by step setup of. Hello Friends, After long work on SWAT I have made SWAT tutorial, This covering data preparation to final simulation Step by step guide. This is covering how to.

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A dialog box with Select option from Select from Map and Load from disk is opened. This function calculates basic watershed characteristics from the DEM and sub-watershed themes. However the general procedure is given below for reference.

It also assigns the necessary subbasin identification. If the wrong subbasin is listed, click No and repeat step 7 2. The user can add or remove arswat to refine the delineation process. Assuming the outlet and stream definition to be acceptable proceed to inlet definition for the study area. If the wrong subbasin is listed, click No and repeat step 7 1.

In this exercise, we will not focus on adding or removing a reservoir. Inlets represent any point source loading arcswar the study area or the inlets of drainage into the watershed from an upstream area. The minimum threshold area is for the entire watershed, not for each sub watersheds that are going to be delineated. In this example, select 1 outlet at the downstream edge of the masked area Figure 14 and click the Delineate Watershed button.

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You have the option of changing the size of the subbasins within the specified range of values. The drainage network and stream juncture points, used to define subbasin arcswaat, are displayed on the DEM map grid.

The delineated watershed with subbasins will be added to the View. To add a reservoir, click on the ADD button and with the cross appearing as mouse pointer, click on the subbasin where the reservoir will be added.

When completed, you will see the following message: Open the Reach or Watershed attribute tables to view the calculated characteristics.

ArcSWAT (Texas A&M University) | UN-SPIDER Knowledge Portal

Click beside Maskthen three options is available to specify the watershed area of interest: The procedure is similar to the process of manually adding or removing an outlet. Double click the mouse left button to complete the polygon. These tools provide the capability similar to drawing and editing a polygon theme in ArcMap. The DEM properties should correctly define the grid size and units.

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The reservoir will be placed at the outlet of the subbasin. Draw a square around the reservoir to be removed by holding the left mouse button and moving the mouse.

EDIT Vertex will allow you to adjust the boundary of the mask. Choose Load from disk and select the DEM grid located in arswat disk and click add. Exit the Watershed Delineation Dialog.

A prompt qrcswat will appear to announce completion of the watershed and subbasin delineation. Click on the DRAW button to manually trace the boundary of the watershed area of interest using the mouse.

ArcSWAT (Texas A&M University)

Main Watershed Outlet s Selection and Definition. These maps are not required but might speed the processing time for the GIS operations. The detailed procedures on how to use the Watershed Delineation tool are introduced in the following sections: Reservoirs The user can add or remove reservoirs to refine the delineation process.

In order to use the threshold method to delineate the watershed and stream network, the Flow Direction and Accumulation needs to be calculated by clicking the button.