Catchment area Calculation using arcgis 10.4 : watershed delineation

earlier today I'm going to show you how to calculate catchment area using ArcGIS for this unit we have digital elevation model or TEM data I have downloaded mine let's open it this is the DM data of the bar let's turn this color first okay this is the DM data I want to calculate catchment area it in this point along this river for this I want to keep the person I need from this fear let's create a folder for our project yes let's get a sceptile for this tango and it is polygamy okay yes we can see all different clear and rectangular field on that left side of this screen and let's create a few database file for saving the different projects and let's set it as our default geodatabase five he drove just goodie start engaging with tango quantanium yes I need this person for my project so I want to clip from this Christmas area I need for my project so yes and editor so it's later stop editing I want to separate this person from the wall and data works felicity [Music] yes now go to the first option sauce for skip when the doctor managed we can see a key person now we did asking input raster nibble nibble Easter and output we have created rectangle here it is this click OK and will be good at the bottom of the Windows screen we can see a clip of some running yes we can see it is separated from the man Dada now we don't need it remove let's calculate the catchment area at this point okay so go to the add tool box under dispatch skills and less tool we will see ideology expand it and run fill command input raster impala strictly it's okay and pick okay now it's completed in balusters we don't need it let's remove it now on flow direction also it is asking input for surface raster in about clean the ball and it should be okay now wrong floor accumulation command it is asking input projects and raster so the exam indices for detection and I don't want to change anything just on it you can sit for a communication command is running in the bottom of the screen yes if we zoom it we can see in the white line it is the axis of fewer you now you if we double-click on circulation and click on this strange option and click on apply' we will clearly see the different reverse yes these are the these white hands are the different rivers now let's calculate the catchment area at this point okay for this let's look at box open it and let's create another sceptile and this time it will be a point let's name it people entity and pizza for it okay okay we don't need this you know and point is appeared on the left side of the screen and you can start editing and point okay continue let's place the point at this point now save it it's distorting open our tool box speculum nice now cos Delta cos Bend area for this deep water set of some input for detection roster so detection investors it's P point perfect okay and we will see the catchment area these points this is the catchment area or watershed at this point you but we don't actually know the value in kilometer or meter square we have to extract this into polygon let's open our toolbox under cumbersome tool we will see from roster from raster to polygon run it input raster that is water should flow I want to name this file is polygon polygon click OK yes now Watershed polygon is created look at this this is the catchment area open attribute table airfields we want to calculate area so named a re area slot into let's before calculating the catchment area we need to change this coordinate system into our respective coordinate system for this go to layer the properties that it is coordinate system now go to projected coordinate system ugm WGS 1984 open emitter main location is in northern hemisphere and it is WGS 1984 UTM zone 44 North 44 45 M is the standard coordinates it might be different across the walls it's okay now put the porygon at open attribute table if we want to cap it area and calculate symmetry yes and I want it in kilometer a square you can see the total area of this catchment is 256 point to 497 limitary squares which is the Gasman area of this podium you

Channel: Hydropower

Views: 42,790

Keywords: watershed delineation arcgis, Catchment/Watershed area calculation by ArcGIS 10.4, catchment area, DEM, USGS, earthexplorer, Hydrology, spatial analyst, Nepal, River, hydropower, bridge, Clip, Exporting data, Flow, Flowaccumulation, Flow direction, shapefile, Digital elevetion Module, Hydrology tool, ArcGIS, arcgis, 10.4, Hydropower in Nepal, catchment area using arc gis, use arcgis, catchment area calculation, sig, google earth, watershed

Id: m7VAPMAae70

Length: 11min 56sec (716 seconds)

Published: Tue May 09 2017