Geo-Ras Überschwemmungsgebietsabgrenzung mit Rastern

Question

<\/HEAD>Ich verwende ArcGIS 10 und Geo-Ras 10. Ich kann ein GIS-Projekt erstellen, alle Daten nach HEC-RAS exportieren, meine instationäre Simulation ausführen und wieder in Arc-GIS importieren, alles funktioniert einwandfrei. Dann richte ich meine Layer ein, importiere die Layer und erstelle eine Wasseroberflächen-Generierung. Allerdings stürzt das Programm im letzten Schritt, der Überschwemmungsgebietsabgrenzung mit Rastern, ab.<\/SPAN> Ich habe neue Projekte erstellt, alle Schritte wiederholt, Dateien gelöscht, Dateien lokal gespeichert und den Computer neu gestartet. Mir fällt nichts anderes ein, was das Problem verursachen könnte. Für jeden Rat wäre ich dankbar. Ich habe auch eine Umgehungslösung verwendet, indem ich das TIN minus benutze, um das zu erzeugen, was ich brauche, aber ich habe viele Projekte, für die ich dies ständig tun muss, und würde das Problem gerne lösen.<\/SPAN> Nick<\/SPAN><\/BODY><\/HTML>

ketakiagarwal · Answer

I am using ArcGIS 10 and Geo-Ras 10. I am able to create a GIS project, export all data to HEC-RAS, run my unsteady simulation, and import back into Arc-GIS just fine. I then set up my layers, import the layers, and do a water surface generation. However, on the last step, Floodplain Delineation Using Rasters, the program crashes.

I have created new projects, redone all steps, deleted files, saved files locally, restarted the computer. I can't think of anything else that would cause the issue. Any advice would be appreciated. I have also done a work around, using the TIN minus to generate what I need, but I have many projects that I need to continually do this for, and would like to figure this out.

Nick

were you finally able to resolve the issue??? am facing a similar problem.

DerekEtkin · Answer

If anyone else has given up and wants to use a work-around, I've had success with taking the TIN produced in the "Water Surface Generation" step and intersecting it with the ground surface TIN using "Surface Difference" in the 3D Analyst Tools -> Terrain and TIN surface toolbox.

Best of luck.

DerekEtkin · Answer

I am using ArcGIS 10 and Geo-Ras 10. I am able to create a GIS project, export all data to HEC-RAS, run my unsteady simulation, and import back into Arc-GIS just fine. I then set up my layers, import the layers, and do a water surface generation. However, on the last step, Floodplain Delineation Using Rasters, the program crashes.

I have created new projects, redone all steps, deleted files, saved files locally, restarted the computer. I can't think of anything else that would cause the issue. Any advice would be appreciated. I have also done a work around, using the TIN minus to generate what I need, but I have many projects that I need to continually do this for, and would like to figure this out.

Nick

I am having the exact same problem in GeoRas10 and ArcGIS 10 (even using the same work-around), but haven't found any solutions yet. For whatever it is worth, as recently as July 2012 I was successfully generating floodplain delineations using GeoRas10 and ArcGIS 10, but now returning to the process a couple months later, the final "Flood Plain Delineation Using Rasters" step doesn't work.

I might have missed something, but I wasn't able to find anything in  h2obuilding's suggested thread that is relevant to HEC-GeoRAS tools.