How to use a DEM to delineate a Watershed/Basin in ArcGIS

A watershed is the upslope area that contributes flow to a common outlet as concentrated drainage. It can be part of a larger watershed and can also contain smaller watersheds, called subbasins.

This tutorial shows step by step how to delineate a Watershed using a DEM and ArcGIS Hydrology tools.

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extract streams and define a basin from ASTER-dem-arcgis / watershed delineation
How to delineate a watershed using a DEM: Mosaic, sink fill, flow direction
Compute watershed grids: fill, flow direction, and flow accumulation

[ariellelyster]

Thank you so much for this tutorial! Saved my life for my final Graduate project for my Spatial Analysis class. I used this to delineate the Mississippi River watershed

[madhumalith]

thank you so much. rather than learning delineating, I learned how to use other tools also.

[prabindhakal]

This is the best tutorial I've ever watched.

[targetone]

YOU YES YOU

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The one reading this. You are beautiful, talented, amazing and simply the best at being you. Never forget that.

[geospatialsurvey]

Thanks for the awesome tips to work with DEM data. I'm thrilled.

[raushananand]

thanx sir, Can you please provide video about how to derive morphomertic parameters from that stream network.

[yunana]

Thanks so much for this wonderful tutorial

[noor-e-falak]

Polygon vector layer and shapefile are two different things?

[jazivesanchez]

Why did you decide Flow Accumulation over 40, 000?

[carasho]

Thanks for explaining and this lecture was really helpfull

[iyanh]

may i ask how do you choose the watershed boundary ?

[JV-gihs]

How do you know if you have the right basin?.

[deepangshuchandra]

Thank you sir, this worked like charm

[zevrymor]

What does the numbers means in Basin>Value>high&low.
Much thanks

[gauravagarwal]

Respected Sir,

A kind request to you to kindly upload videos in which you narrate what all you are doing as it makes the video more interactive and unlike many other videos you have uploaded where the mouse pointer is highlighted which after a short time makes the video monotonous.

Regards,
Gaurav.

[gaetanopatti]

Hi, I want to extract only watersheds of rivers with a surface equal or greater than 10 kmq... there is a metod to do this?

[henokderseh]

please make tutors how to make vegetation zone and elevation zone in arc map to prepare data for hbv model

[ibrahimkebe]

thant you verry much, c'est magnifique

[hailutimerga]

thanks a lot however how could fix watershed area in the region of 250-500ha(how much is its pixel size) which is manageable size for watershed development.

[srq]

excuse me, why can’t i click the fill in hydrology arctoolbox? its showing x sign in fill