HEC-HMS QUEST... STORAGE COEFFICIENT

[AshEngPE]

How do you determine the Storage Coefficient in the Clark U.H.?

 

[RWF7437]

Try this:

http://smig.usgs.gov/SMIG/features_0301/clark.pdf

good luck

 

[blueoak]

My experience with Clark is using it for gaged watersheds. It seems less common for your typical ungaged watershed study.

 

[AshEngPE]

Blueoak,
I am reviewing a set of plans submitted by consultants. The hourly rainfall data for different frequencies was obtained from Technical Paper No. 40. The only value I cannot seem to figure out is the storage coefficient.....How they got it......

 

[blueoak]

AshEngPE,
I would let them tell you. If you are a little concerned though I would check it against either a regression or a really simple hydrology model. I am surprised that they wouldn't give you this information though. I am amazed when I seenot included.