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I am trying to determine a lake's catchment with Arc Hydro tools or other tools in ArcMap.

I tried basin tools in sptial analyst and catchment grid delineation tools in ArcHydro Tools but all the time I got too large areas along the watercourses where there are many lakes. I need the catchment of individual lakes. How to do it?

  • Wouldn't it be exactly the same method for a lake as for a river? In both cases water flows downhill. – csk Apr 5 at 20:49
  • What procedures have you tried already and how did their output fail to meet your needs/expectations? – Paul H Apr 5 at 20:56
  • I tried basin tools in sptial analyst and catchment grid delineation tools in ArcHydro Tools but all the time I got too large areas along the watercourses where there are many lakes. I need the catchment of individual lakes. – marti82 Apr 5 at 21:36
  • what makes you think the areas are too large? – Paul H Apr 5 at 21:56
  • there are several lakes in them that are not connected to each other. I have to separate their basins. – marti82 Apr 5 at 22:07

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