Creating watershed.
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Shakshyam Kafle
Jun 1, 2026, 5:31:55 PM (10 days ago) Jun 1
to EPIC / APEX Modeling Forum
Hello everyone,
I am trying to use APEX model to monitor phosphorous leaving the field . The size of the field is around 45.7 ha.
What size of the DEM do I select to delineate watershed?
Also when I create watershed, a very small watershed is delineated ( I have added a picture).
The lines are tile drain lines and I tried to upload a DEM 3 times larger than the field size.
The red lines are the created watershed.
I am trying to use APEX model to monitor phosphorous leaving the field . The size of the field is around 45.7 ha.
What size of the DEM do I select to delineate watershed?
Also when I create watershed, a very small watershed is delineated ( I have added a picture).
The lines are tile drain lines and I tried to upload a DEM 3 times larger than the field size.
The red lines are the created watershed.
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