pour points and watershed delineation

[nikol...@hotmail.com]

Maybe I am thinking about this too hard, but I am having a really hard time trying to figure out how many pour points are needed to determine the watershed delineation.  Can I get any suggestions on what you may have done?

Thanks!

Nikol :)

[Shannon Wing Belmont]

Nikol,

One pour point defines one watershed.

All the "water" that falls in the watershed will drain to that one point

That's why we use the flow accumulation to define where that one cells needs to coincide.

Here's an ESRI thread discussion the topic.

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Shannon Belmont

Quinney College of Natural Resources
Utah State University
5210 Old Main Hill
Logan, UT 84322-5210