veg shading effect on air temperature

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byronyue924
Posts: 3
Joined: Wed Apr 11, 2018 1:36 am

veg shading effect on air temperature

Postby byronyue924 » Sun Sep 16, 2018 12:33 am

Hi team,

I have placed many trees in my model, but saw little shading effect on reducing air temperature. can you explain why?

Thanks
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helge
Posts: 114
Joined: Mon May 15, 2017 12:27 pm

Re: veg shading effect on air temperature

Postby helge » Fri Sep 21, 2018 9:01 am

Dear byronyue924,

the shading mainly effects the radiation processes and new air is transported beneath the tree constantly -> you don't see a significant reduction in air temperature underneath a tree (also not in real life). What you feel as cooler conditions under a tree in real life is the reduced incoming radiation. You can also see this effect in ENVI-met when looking at the shortwave direct radiation outputs.

Cheers
Helge


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