Temperature over a lake in WPS

Questions related to the use of new landuse, or geographical static data, or to modifications to the existing data
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Liliputian_123
Posts: 37
Joined: Sat Jan 18, 2020 4:04 pm

Temperature over a lake in WPS

Post by Liliputian_123 » Tue Apr 27, 2021 6:36 am

Dear WRF Experts,

I would like to know the following:

(1) What temperature is assigned over an inland lake in WPS?

(2) If I want to change the temperature of the lake, which variable should I modify in the geo_em or metgrid files?

Here's the location of the lake: Laguna Lake, Philippines

Image

Thanks in advance for the help!
--Lyndz

kwerner
Posts: 2287
Joined: Wed Feb 14, 2018 9:21 pm

Re: Temperature over a lake in WPS

Post by kwerner » Tue Apr 27, 2021 10:46 pm

Lyndz,
The temperature of the lake depends on your input data and whether you use the lake model (sf_lake_physics = 1) when running WRF, which will predict TSK for the lake points. If you don't use lake physics (sf_lake_physics = 0) all inland bodies of water will be treated as water points, similar to the treatment of ocean points, using either TSK or SST as input.
NCAR/MMM

Liliputian_123
Posts: 37
Joined: Sat Jan 18, 2020 4:04 pm

Re: Temperature over a lake in WPS

Post by Liliputian_123 » Fri Apr 30, 2021 3:47 am

Thank you @kwerner.
This already answered my question.

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