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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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Click on the Calculate Subbasin Parameters button to estimate the subbasin parameters.

The procedure is similar to the process of manually adding or removing an outlet. Select the Load mask grid from disk option and click OK. This function calculates basic watershed futorial from the DEM and sub-watershed themes.

Double click the mouse left button to complete the polygon. 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.

Next step is Outlet and Inlet Definition. For the Stream Definition function of the Watershed Delineator, There are two ways to define the watershed and stream network.

Inlets represent any point source loading into the study area or the inlets of drainage into the watershed from an upstream area. It means that a minimum number of cells are required to start delineating the stream. In this exercise, we will tjtorial focus on adding or removing a reservoir.

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After loading DEMthe button will be activated. The DEM properties should correctly define the grid size and units. You can view the area and percentage wise distribution of elevation for the entire watershed and each subbasin. Before proceeding, you have a number of options: It also assigns the necessary subbasin identification.

Click EXIT in the watershed delineation main dialog. Exit the Watershed Delineation Dialog.

This tool is used to create watershed delineations using a combination of DEM, digitized network, and other user inputs. EDIT Vertex will allow you to adjust the boundary of the mask. Add Tutorizl Grid 1. Assuming the outlet and stream definition to be acceptable proceed to inlet definition for the study area. In this example, select 1 outlet at the downstream edge arcswaat the masked area Figure 14 and click the Delineate Watershed button.

Draw a square around the reservoir to be removed by holding the left mouse button and moving the mouse. A stream network theme can be superimposed onto the DEM to define the location of the stream network. A dialog box with Select option from Select from Map and Load from disk is opened. If the correct subbasin is listed, click Yes.

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

Click on the DRAW button to manually trace the boundary of the watershed area of interest using the mouse. Draw a box covering the desired outlet locations will set the main Watershed Outlets. To add a reservoir, click on the ADD button and with the cross appearing acrswat mouse pointer, click on the subbasin where the reservoir will be added.

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If you have selected the Manually Delineate option, then a ttuorial will appear and allow you draw polygon mask. The drainage network and stream juncture points, used to define subbasin outlets, are displayed on the DEM map grid.

ArcSWAT (Texas A&M University)

Burning in a stream network. The user can change the Z unit to reflect arcswqt real situation. The minimum threshold area is for the entire watershed, not for each sub watersheds that are going to be delineated.

You have the option of changing the size of the subbasins within the specified range of values. For simulation, a watershed is subdivided into a number of homogenous subbasins hydrologic response units or HRUs having unique soil, slope and land use properties. In this step the users will select one or more outlet locations to define the boundary of the main watershed.

At least one outlet must be selected for delineation.