This is a collection of actions I've learned to take when I'm having problems with ArcHydro or HEC-GeoHMS. I'll add to the list when I find more.* Make sure the Geoprocessing extents include the whole project: Go to the Geoprocessing menu>Environments...>Processing Extent. Under Processing Extent choose a layer that you know covers the full extent of the waters you are processing and click OK. This should ensure that the processing extent is large enough to do what you want. * Delete everything you can in your temp folder: Mine is C:\Users\mboucher\AppData\Local\Temp. Get out of ArcMap first to clear temp files related to your project. You can do this without getting out of ArcMap through the ArcHydro Toolbar under ApUtilities>Additional Utilities>Clean User's Temp Folder. * Make sure your Target Locations are correct: Under ApUtilities>Set Target Locations, make sure the HydroConfig and they GeoHMSConfig Targets make sense. The raster data should go to the project folder vector data to a geodatabase. The raster data will go to a folder in the project folder with the dataframe name and the vector data to a feature data set with the dataframe name. Through the ArcHydro Toolbar under there is a function to reset the target locations: ApUtilities>Additional Utilities>Reset Target Locations. I've not tested this to see if it corrects everything. * When working on a complicated model, don't use the model mxd for your presentation map. It just adds baggage to an already "heavy" mxd. If you have additional actions or clarifications on these, please chime in.

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ArcHydro Problem Solvers

MarkBoucher

This is a collection of actions I've learned to take when I'm having problems with ArcHydro or HEC-GeoHMS. I'll add to the list when I find more.

Make sure the Geoprocessing extents include the whole project: Go to the Geoprocessing menu>Environments...>Processing Extent. Under Processing Extent choose a layer that you know covers the full extent of the waters you are processing and click OK. This should ensure that the processing extent is large enough to do what you want.
Delete everything you can in your temp folder: Mine is C:\Users\mboucher\AppData\Local\Temp. Get out of ArcMap first to clear temp files related to your project. You can do this without getting out of ArcMap through the ArcHydro Toolbar under ApUtilities>Additional Utilities>Clean User's Temp Folder.
Make sure your Target Locations are correct: Under ApUtilities>Set Target Locations, make sure the HydroConfig and they GeoHMSConfig Targets make sense. The raster data should go to the project folder vector data to a geodatabase. The raster data will go to a folder in the project folder with the dataframe name and the vector data to a feature data set with the dataframe name. Through the ArcHydro Toolbar under there is a function to reset the target locations: ApUtilities>Additional Utilities>Reset Target Locations. I've not tested this to see if it corrects everything.
When working on a complicated model, don't use the model mxd for your presentation map. It just adds baggage to an already "heavy" mxd.

If you have additional actions or clarifications on these, please chime in.

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Accepted answers

MarkBoucher

I've started a practice that seems to make many errors/crashes go away.

Layers/rasters needed for Arc Hydro are:

DEM PROCESSING:

rawdem (Extracted by mask from county-wide dem for each project. Set processing extents using this or mask ploly)

agreestream*

innerwalls*

outerwalls*

*I do work all over my County and so have county-wide "master" geodatabase for these that I use on all my Arc Hydro Projects.

WATERSHED DELINEATION:

BatchPoints

If I have these layers, I can recreate the hydrologically correct DEM (HC DEM) anytime I want and re-delineate the watersheds.

So my practice is this: As I'm developing my HC DEM, and have to modify the agreedem, innerwalls, outerwalls layers, I can save the BatchPoints to my project folder and then delete the geodatabase and folder with rasters in it (Target Locations). This starts everything fresh and new. Then I can use model builder to reprocess the watersheds. When I'm ready to re-delineate the watersheds, I copy the BatchPoints into the geodatabase and set the BatchDone value to "0".

I run the watershed delineation, etc. via the Arc Hydro menus though I could possibly do this via Model Builder also. Since I've started doing this (and following solutions in the postings above on this thread), my crashes and errors have all gone away! Here is the ModelBuilder model for my latest project. I don't use outerwalls on this project, but that could be added.

[ATTACH=CONFIG]18585[/ATTACH]

ModelBuilder.jpg

All comments

SapetaSamuelEEC

Hello Mark and anyone else,

I am having working on a project delineating HUC12 watersheds to HUC14s, and I keep having this error occur that prevents me from creating proper BatchPoints. From what I can tell, the issue is because of the Str and StsLnk layers not forming a closed line (as seen in my images below), this causes more problems because the map acts like the stream ends at that point, rather than continue on to the joining section.

Any ideas for how to approach this? Thanks,

Sam

DipikaBadal1

Hey Mark,

Wanted your opinion on something:

I am working on a hydrological modeling project in a relatively mixed agricultural area using a 10m resolution DEM captured via Radar. The study area is topographically diverse, covering both flat agricultural plains and the more rugged, incised valleys.

I am using the ArcHydro DEM Reconditioning tool to burn in a vector watercourse layer. I’m trying to find the right balance for the AGREE algorithm parameters to ensure flow consistency without over-distorting the terrain.

I am currently considering these parameters:

Number of cells for stream buffer: 3

Smooth drop: 5

Sharp drop: 30

Any suggestions on how to set these parameters would be really appreciated.

Also, are there any documentations on how to set these values for diverse terrain?

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