Create Curve Number CN Raster Using ArcHydro Tools in ArcGIS Pro

The curve number is a dimensionless value that ranges between 30 and 100. It is based on a variety of factors such as soil type, land use, hydrologic condition, and antecedent moisture conditions. The higher the curve number, the less water can infiltrate into the soil, resulting in higher runoff potential.
Use the following URL to access the resources mentioned in the video:
www.hydromohsen.com/create-cu...
Table of Contents:
00:10 - 02:22 Intro and how to access ArcHydro
02:22 - 04:14 Download the required data
04:14 - 12:02 Create a histogram of hydrologic soil groups (HSGs) and replace the missing HSGs with the most frequent HSG
12:06 - 14:34 Convert A/D, B/D, and C/D to D
14:44 - 15:53 Convert the landuse raster into a feature class (aka a shapefile)
15:54 - 19:56 Add 4 columns to the soil table: PctA, PctB, PctC, and PctD
20:01 - 21:52 Use the "Union" tool to create a connected soil and land-use shapefile
21:52 - 23:01 Remove FID=-1
23:05 - 25:15 Create a new column: LandUse = Gridcode
25:19 - 25:43 Create a "CN Lookup Table"
25:44 - 27:20 Generate the CN raster by using ArcHydro Tools
27:20 - 29:00 Analyze the results

Пікірлер: 11

  • @user-kl2xm3is5t
    @user-kl2xm3is5t11 ай бұрын

    Thanks a million Mohsen for the nice style of teaching and giving a great chance of learning to others.

  • @HydroMohsen

    @HydroMohsen

    11 ай бұрын

    Thanks for your kind note!

  • @user-dl3xz8xg7p
    @user-dl3xz8xg7p9 ай бұрын

    Thanks a lot for the amazing video!

  • @user-hb8yo8on9y
    @user-hb8yo8on9y3 ай бұрын

    Is the "Generate CN Raster" tool still available? I recently downloaded Arc Hydro Pro and do not see it listed when I search the toolbox.

  • @HydroMohsen

    @HydroMohsen

    3 ай бұрын

    Last time I checked it was available! I have created another video that show how you can create it using a custom toolbox. Stay tuned!

  • @user-sw2lv2hc5c
    @user-sw2lv2hc5c11 ай бұрын

    Hi Mo- thanks for the excellent video! When I go to create my CN raster in the final steps, I get this warning: "'line 268', 'c:\\program files\\arcgis\\pro\\Resources\\ArcToolbox\\Scripts\\archydro\\generatecnraster.py', 'RuntimeError: Cannot acquire a lock.'" And no raster is generated from the process. Any ideas on what my problem could be? Thank you!

  • @HydroMohsen

    @HydroMohsen

    11 ай бұрын

    Glad you liked it! Try to save your CN raster in a geodatabase.

  • @GaryHenrysChannel

    @GaryHenrysChannel

    2 ай бұрын

    Did you figure this out? I'm getting the same error, and I'm saving the raster in a geodatabase. Not sure what is happening.

  • @hectorcallirgos4009
    @hectorcallirgos40093 ай бұрын

    Could you please give us the name of the watershed that you have as a study area? Thanks for your answer

  • @HydroMohsen

    @HydroMohsen

    3 ай бұрын

    I honestly do not recall the watershed! I'll check to see if I still have the GIS package!

  • @hectorcallirgos4009

    @hectorcallirgos4009

    3 ай бұрын

    @@HydroMohsen Thank you