negative relative humidity

General scientific issues regarding ROMS

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onken
Posts: 13
Joined: Thu Feb 15, 2007 12:19 pm
Location: Helmholtz Zentrum Geesthacht

negative relative humidity

#1 Unread post by onken »

Sometimes, atmospheric models provide NEGATIVE relative humidities. It is highly recommended to remove such values because ROMS will immediately blow up because lwrad produces NaNs. It took me 2 days to locate the bug!
Therefore, when producing the forcing fields, I limit
(1) Qair to 0 <= Qair <=100
and also
(2) 0<=cloud<=1
(3) 0<=swrad
BTW, I am still using ROMS V3.6. Possibly, this problem was solved already in more up-to-date versions.

Happy Modeling!

Reiner

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