Latest Contributions by LaylaBz

thanks for the links, I had the 10.2 version of ArcHydro installed already. I am still having issues although I was using 10.1 and I did manage to get polygon catchments. I get the same HRESULT E_Fail error at Drainage Line Processing. ... View more

Thank you! Yes very helpful! ... View more

Dear Mr. Boucher, I encountered the same error (a shorter message, but same HRESULT E_FAIL error) when I wanted to create catchment polygons from my catchments. (input: cat, output:Catchment) and I tried my data with another computer that had ArcGIS 10.1 and it worked without a hassle! (I was working with 10.2 when it didn't work) Just wanted to put this out here. Also , i have a question regarding AgreeDEM. Although, I have been doing AgreeDEM for my data, I havent really understood how to figure out Smooth and Sharp drop/raise. When I am given a set of data, how do I figure that out? I usually use 2,3 or 5 for my buffer cell size; but for smooth and sharp drop/raise, I am not sure what to do. I use 0.5-1 for smooth and 5-10 for sharp, and my reasons are that I am working in Florida region, and it is a flat terrain. I am not sure if I am using the right factors. I know that it is said, I can do trial and error and see the results and change the factors, but since there are 3 different factors, it will take a lot of trails to really understand the effect of each factor. Any thoughts on that?! Thanks ... View more

I see. Thank you for your great input on the matter. I keep in touch! regards, ... View more

It actually worked!!! I changed my target locations for vector files from "gdb" to "mdb" (Personal geodatabase). That might have had something to do with it as well as usng GIS 10.1. I am not sure. I was creating clips of my DEM and stream shape file as well but I still created/saved them in a gdb (not a mdb). Any thoughts on the matter?! Thank you! ... View more

Hello Mr. Boucher, Thank you for your quick reply. I actually had done that too. Still no luck. By agreestream layer, you mean the NHLFlowline (USGS)/the stream layer I will use on my DEM layer in AgreeDEM? IF yes, I have that  in a GeoDataBase (.gdb) as well. I am trying it with arcGIS 10.1 now (I was using 10.2) I will let you know how it goes. Thank you ... View more

Hello, I have already asked about this issue with another set of data before, but I am stuck on DEM Reconditioning again with HRESULT E_FAIL error (returned frmoa call to a COM component) I have tried everything i could find on this on the forum. I have deleted and created the layers over and over again for the past 2 days. I am all out of ideas. I have used my DEM, my NHD layer and zoomed extent and used the display extent for my "Environment Extend". My background processing is off. My Temp Folder is empty and results are removed. I also set my target locations to a folder (that i made for the project) for raster data and a gdb with the same name (under the raster folder) for the vector data. I also set the target location for all three of the following: Ap UtilitiesConfig, DefaultConfig and HydroConfig. Is there anything I am missing? The name of my msx is short with no number or space too. Same with the name of my folder and gdb. Your reply is greatly appreciated. Thank you ... View more

My SA license is not available for me to look at the commands in detail. My watersheds are generally not as flat as Florida. In the flat valley areas I do have, I find the need to "build" lots of walls to make the flows go in the right directions. I think there is an option in the burn streams tool that tells Arc Hydro to bring the negative dem values up to zero. If you do have zero values and can't find that option, but still want to see if the negative numbers make a difference, you could use the CON() function to make anything negative 0.0 or slightly above. Then you could use that raster for the rest of the process. I also don't recall negative numbers being a problem. I'm in the SF Bay area and my elevations aren't all that high. I use the default burn values which I think the deepest is 1000 ft. and I know many of my projects have gone to the bay and I've never had a problem. Since I have steeper terrain, my tendency is to minimize the width of the smooth and sharp rise values. The purpose of the smooth drop is to eliminate parallel stream right next to your main stream. It might be a trial and error situation for you to figure out what values to use. When I do trial and error, I do a trial noting the parameters I used, get out of Arc Map, delete the Arc Hydro file geodatabase and raster folder, start up Arc Map again and reprocess using different smooth/sharp drop values. Seems to be a few extra steps, but makes things run with fewer hiccups due to overwrite conflicts etc. This is where model builder comes in handy. thank you, I am very new to ArcHydro and I am still learning. I would have to read through everything you said and research more on it to be sure I understand what you said. I will get back to you. Thanks a lot. ... View more

Yes, thanks I have seen that thread and checked out the links (only the second one opens for me though) I think I understand what smooth/sharp drop/raise are. But I am not sure how to figure out what number to use for each. I am working on Brevard County in Florida, which has a minimum of -30 ft and max of 150 ft in elevation. (I work on 5 separate sets of RAW DEM data that each have different min and max, but I provided the min and max for the whole county) My first question, is that since Florida is very flat (compared to a mountainous terrain) , do I need to take that into account when using default values for smooth (10 ft) and sharp(100ft) drop/raise factors?  (For example, one of my sets of data has a min elevation of -4 ft and max of 55 ft ) Second, Since I Have negative values for my minimum elevations in a few of my RAW DEM layers, do I need to take that into account when figuring out what values to use for smooth and sharp drop/raise? Thank you very much . ... View more

Hi all,   I am using Aster DEM having 30m resolution n i wana use DEM reconditioning (AGREE) option. but i am little confuse with the following inputs;    Stream buffer -------    Smooth drop/raise --------    Sharp drop/raise --------   Kindly guide me that what should be the above inputs and which would be suitable for this DEM. Hi, Did you ever figure out what to put for those factors? I have the same issue. As far as I have understood, you can go as low as 2 buffer cells for "Stream buffer" input. Although I think 2 would give you a coarse result anyway but my understanding is that since we are using less cells in computation, it takes shorter time to do the DEM Reconditioning process. I am confused about smooth and sharp drop/raise too. I usually use 1ft for smooth, (I am working on a rather flat area (Florida)), but for sharp raise/drop I don't have any idea. My other problem is that I have NEGATIVE minimum elevations on my RAW DEM too. And I m not sure how to address them in my smooth and sharp drop/raise. Please let me know if you have figured out this. Thank you! ... View more

Have you tried starting over from scratch with just the rawdem, agreestream and innerwall data? I did this recently and it helped be get past some unknowable problem that was hanging up the AdjointCatchment creation process. My view of it is that starting from scratch makes sure there isn't some residual setting or variable that is hindering the process. If you put the new mxd in the same directory, it is good to give the data frame a different name so that the folder and dataset names don't conflict with the old ones. To avoid this hassle, I will often close Arc Map and using Windows Explorer delete the folder with the rasters and the geodatabase created by Arc Hydro. These are all recreated when you run Arc Hydro tools. The only layers I save are rawdem, agreestream, innerwalls and outerwalls (not used much). I will also often save the batch points if I set them manually since is can take time to set them in the right place again. If you copy the batch points in the save batch point layer to the new geodatabase for the file and data frame, you have to set the "BatchDone" value back to 0 so the batch watershed or subwatershed delineation tools will work. Hope this helps. Thanks again Mr. Mark. I realized I get this error when I end my AGREEDEM name with a number too! So I omit the number and replaced it with a letter and it worked like magic! (I learnt this from one of your threads as well!) I really appreciate your help. ... View more

I don't have time to delve into this right now. Check out the posts at the link below my signature. Tips may help you work around the issue. Thank you, I read a lot of your posts, and did follow your instructions on setting up target folders and cleaning up temp folders, etc. The issue still exists. I still get the following error: Could you kindly help me resolve this issue? ... View more