TC_URB is not capturing urban processes

[hamzanisar470]

Hi,
I am using WRF 5.3 with CGLC data set. With MUCM (sf_urban_physics=3). For TC_Urban my values are not changing and it shows me almost plain grid values (graph attached).
While LH_URB captures data fine.

 

[Ming Chen]

Sorry that i don't have an immediate answer to your question. I will talk to our expert and get back to you.

 

[hamzanisar470]

Also, for the temperature of solar PV panels. they are calculated less than T2 temperature

 

[cenlinhe]

Hi, the issue with TC_URB is because TC_URB is only used by sf_urban_physics=1 (single-layer UCM) and not used by sf_urban_physics=3
Also, for your question about solar PV panel temperature, I am not sure I understand your concern or question. T2 is at 2-m level, while PV panel temperature is at the roof level. They are different.

 

[hamzanisar470]

Hi, the issue with TC_URB is because TC_URB is only used by sf_urban_physics=1 (single-layer UCM) and not used by sf_urban_physics=3
Also, for your question about solar PV panel temperature, I am not sure I understand your concern or question. T2 is at 2-m level, while PV panel temperature is at the roof level. They are different.

The solar panel temperature goes maximum to 30 degrees while the 2m temperature goes up to 40 degrees.

The PV panel temperature is always higher than 50 - 60 degrees.