Rain rate in wrfout file

[Chetan]

Hello all,
How can we get the rain rate (mm/hr) from wrf simulation? I saw there rainc and rainnc, but they are accumulated. I need the rate not accumulated. Does anyone have any idea?

Thank you in advance.


Regards,
Chetan

 

[kwerner]

Hi Chetan,
According to the

Registry.EM_COMMON file, there are a couple of variables you can request to output for rain rate.

state    real  PRATEC           ij      misc        1         -      r        "PRATEC"                "PRECIP RATE FROM CUMULUS SCHEME"                         "mm s-1"
state    real  PRATESH          ij      misc        1         -      r        "PRATESH"               "PRECIP RATE FROM SHALLOW CUMULUS SCHEME"                 "mm s-1"

So if you're not using a shallow cumulus scheme, I believe you would just be interested in "PRATEC," which is not output by default. To output this variable, take a look at the "Runtime I/O" option.

 

[Chetan]

Thank you, @kwerner

 

[Chetan]

One confusion @kwerner, if I turn off the cumulus scheme, does PRATEC gives the precipitation rate??

 

[kwerner]

No, I don't believe so.