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I was trying to calculate floodplain delineation using rasters and got the following error (See attached screen capture). Any idea what might cause this? how to fix it? Thanks a lot! Wei
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I downloaded and installed the latest HEC-GeoRAS (10.7) from yellow.esri.com - /archydro/HecGeoRAS/10.7/. I prepared the geometry data in HEC_GeoRAS, exported the data to HEC-RAS (5.07),ran the model; everything worked fine to this step, but when I tried to bring the result back to ArcGIS for visualization, I got "Importing RAS data failed!" and… Show more
Okay, I figured out after reading some other posts. So you need to convert the .SDF file to .XML file. I was able to import successfully. However, I have another problem in computing the floodplain delineation using rasters.
Hello, I am working with ArcMap 10.2 and Hec GEO-RAS and I have the following error messages when I click on RAS Geometry -> Stream centerline Attribute and then Lengths/Stations : "River ID field in river feature OID 2 is not populated." When I try to click RAS Geometry -> Stream centerline Attribute -> All I have the following warning :… Show more
Maybe because there are sub-branches to branch of main river.After i deleted these branches with sub-branch,the error disappears. Hope this can help you .
I'm working on maps that the goal is: to display the direction and intensity of surface water flow. I have the DEM for the watershed and generated the direction of flow, but I don't know how to generate the intensity and display the arrows proportionately. Based on what I researched, I need to generate the intensity data and merge it with the flow… Show more
Hi, I am trying to merge two raster files which have overlap at some points. One of the raster files has higher resolution and the other has a lower resolution. I want to merge them in a way to keep the higher resolution raster file and fill the rest with the lower resolution raster file. Attached you can find images of my raster files. Merged.jpg… Show more
(to Hi pouya khalili, Check out the Mosaic Rasters function—ArcGIS Pro | Documentation and if this does not help the Raster functions—ArcGIS Pro | Documentation. In the mosaic raster function you could select First as the operation and ensure your Higher resolution image is the first input. I hope this helps answer your question. Shane
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Hello, I am working with ArcGIS 9.3.1 and HEC-GeoRAS 4.3.93. I am having two baffling problems when trying to produce the inundation maps with the data imported to ArcGIS via HEC-RAS 4.2 Beta. Firstly, if I import the RAS Data to a "New (File Geodatabase)", I can not get past the step "Floodplain Deliniation Using Rasters" of the "Inundation… Show more
Please how do you import the RAS as a classic database cause when I tried saving it in personal geodatabase that under output directory under layer set up its displaying error output directory
Hi all, I am currently working on analyzing topographic data collected over a span of 3 years on the same stream reach. The analyses require I develop a cross-sectional profile at the same exact location for each year to compare the geomorphic change of the stream channel. I am using the 3D Analyst extension and the "Interpolate Line" function… Show more
HEC-GeoRAS still does this very well. Alternatively, you could extract your line feature to points, and use Extract Multiple values to points, export the XYZ values to Excel, and do multiple scatter plots.
Please can any one help me I am having problem with stationing attributes in hecgeoras. After have digitized my stream centerline, bank lines, flow path and cross section. when I ran the stream centreline attribute it was successful, but when I ran the cross section attribute its displaying to station attribute is not populated for river feature… Show more
Yes, actually av been able to solve the problem and av successfully import my his data into hecras, but after I ran the simulation its displaying junction 2 has only one reach flowing in and one flowing out, junctions are for confluences and splits, if there is just one reach going in and one going out, remove this junction and reaches will be…
Hi everybody, I'm trying to build synthetic drainage lines as coincident as possible with the "real world" shown in the cartography. I think that is a basic purpose of everyone performing hydrological analysis of natural areas, right? 1st I used ArcGIS without the help of ArcHydro and the results were simply unacceptable! (My area has a… Show more
Hi Fernando, have you got a solution to the issue you mentioned related to Flow direction with streams function? Thank you.