Hi - I've been invited to work on a project in which I've been identified as the wetlands specialist. This is an optimisitic title but a good opportunity to learn. I've started investigating ArcHydro and will hopefully use it to identify aeas of our case study catchment suitable for wetland restoration, and then to quantify what impact they might have on flood mitigation.
I hope someone can answer a couple of beginner questions.
1) folder set up. I've read the Arc Hydro best practice notes, just not sure if I'm setting up the separate folders for each run I want to do in the most efficient way. In the Arc Hydro Dendric Stream Unknown Terrain tool (where I'm starting, as per the online videos), I'm going through each box and pointing the tool to a new folder I've created on my harddrive for each run. Screenshot attached. This is quite labourious - is there a quicker way?
2) Point Delineator tool - again, I'm next looking at this tool because the intro online tutorial moves to this one. Its giving me an error after i use the pencil to identify a point. Note I have pointed the Inputs to the tifs I've just created in 1) above, but for for Input Adjoint Catchment Feature Class I wasn't sure, so selected the case study boundary feature. I'm getting this star icon when I select the pencil to input the points, which doesn't match the red point in the tutorial. Screenshot attached. Any guidance much appreciated.
Thanks for any help. I'm sure there'll be more.
Richard
Solved! Go to Solution.
Richard,
We might have to do a deeper dive into your system. Before we do that, please review: https://community.esri.com/t5/water-resources-blog/reporting-arc-hydro-tools-issues/ba-p/1176263 and the referenced doc on how to report Arc Hydro issues. Collect the information from that document, and send it together with the DEM – as zipped file (you might have to place it on some shared drive or I can send you a link to one if needed) - directly to me at ddjokic@esri.com. I’ll have a look and check if there is an issue with the data. In the meantime, you can try to execute individual steps from the model to see if there is something else happening beforehand. In general, that is a better approach than running a “superbutton” when dealing with new area of interest or are getting into the tools.
Dean
9/14/24
Richard,
Good luck with your wetlands project. There is Wetland Identification Model component of Arc Hydro if your project will require identification of wetlands (and you have data to support the ML approach to doing it).
As far as your questions go:
Hope this works for you.
Dean
Richard,
Based on the error message, it seems that there are some “old” feature classes in your target gdb (probably from previous runs). Look into Catalog and delete any entries in the target gdb. If you are at the very beginning of the AH process, you should not even have the “Layers” feature dataset within the target geodatabase (do NOT confuse the “Layers” feature dataset in the gdb with the “Layers” folder where your DEM is). you should also check if there are any rasters in the ”Layers” folders that are “leftovers” from the previous run. If there are, I suggest you delete them all before running the MB again (so you should have only the DEM in there).
Few additional suggestions:
So I would start over with simpler names.
Dean
Richard,
We might have to do a deeper dive into your system. Before we do that, please review: https://community.esri.com/t5/water-resources-blog/reporting-arc-hydro-tools-issues/ba-p/1176263 and the referenced doc on how to report Arc Hydro issues. Collect the information from that document, and send it together with the DEM – as zipped file (you might have to place it on some shared drive or I can send you a link to one if needed) - directly to me at ddjokic@esri.com. I’ll have a look and check if there is an issue with the data. In the meantime, you can try to execute individual steps from the model to see if there is something else happening beforehand. In general, that is a better approach than running a “superbutton” when dealing with new area of interest or are getting into the tools.
Dean
Dean - thanks again for the help - this is resolved now.