Flow Out

Mamad

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Jun 9, 2021, 4:11:31 AM6/9/21

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Hi,

What is the difference between flo_out (m3/s) in channedl_sd_* and channel_sdmorph_*?

I checked in a model and time series are not the same!

Which one should be used for runoff calibration?

Thanks in advance for your response.

Bests,

Mamad

Muaaz S

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Jun 9, 2021, 5:00:47 AM6/9/21

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If I understand correctly, morph is average daily outflow rate during the timestep. The other one will be summed up over the timestep (even though it says m^3/s in the columns and qwat+ interface). I learned this the hard way after making a mistake unfortunately...

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Mamad

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Jun 9, 2021, 6:53:40 AM6/9/21

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Dear Syed,

Thanks, but which one should be used in calibration?

Best,
Mamad

Mamad

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Jun 9, 2021, 2:37:04 PM6/9/21

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I asked this question from developers and their reply (from Dr. Arnold) is here:

""I have many users who want the outputs in different units – it can also get confusing. In channel_sdmorph files, I output in average daily m3/s and in the channel_sd I simply sum the m3/s every day. If you look at channel_sd_aa.txt and channel_sdmorph_aa.txt, find flo_in for a channel in both files. If you divide the channel_sd_aa by 365 (or 366 in a leap year) you should get the average daily value of flo_in in the channel_sdmorph_aa file.""