Shortwave / Longwave radiation

All around LEONARDO 4 (and previous 2014)
BGovehovitch
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Joined: Mon Mar 12, 2018 9:30 am

Shortwave / Longwave radiation

Postby BGovehovitch » Wed Nov 20, 2019 10:52 am

Hi ENVI-met team,

There are information about shortwave and longwave radiation in the radiation folder. But we I can not find information about their upper and lower. In Dr Sebastian Huttner's PhD dissertation, I have read that the shortwave bounds are 290 and 400 nm. Is that correct ? What about the longwave bounds ?

Thank you for your reply,

Benjamin

enviadmin
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Re: Shortwave / Longwave radiation

Postby enviadmin » Wed Nov 20, 2019 2:11 pm

Hi,

As ENVI-met does not use a radiation transfer scheme on the waveband level of detail, the exact definition of short and longwave are quite hypothetical. Below 400 nm, the energy amount in the solar radiation is very low (though still existing), for the longwave radiation the main energy starts at 400 nm. But, as said, ENVI-met does not use wave-band specific information this is just for information

Michael

BGovehovitch
Posts: 27
Joined: Mon Mar 12, 2018 9:30 am

Re: Shortwave / Longwave radiation

Postby BGovehovitch » Thu Nov 21, 2019 9:04 am

Thank you for your reply. It helps a lot!

Just to have a minor clarification: I understand that there is no modelling of solar radiation at wavelength detail. But regarding the spectrum of incident solar radiation (between 250 and 2500 nm), is it correct/acceptable to say that the values of shortwave and longwave radiation in ENVI-met represent the solar incoming radiation between respectively 250 and 400 nm, and 400 and 2500 nm (ie: 400 nm is the theoretical value for the seperation between shortwave and longwave) ?

enviadmin
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Re: Shortwave / Longwave radiation

Postby enviadmin » Thu Nov 21, 2019 1:56 pm

yes this is a possible statement...
Best
Michael

BGovehovitch
Posts: 27
Joined: Mon Mar 12, 2018 9:30 am

Re: Shortwave / Longwave radiation

Postby BGovehovitch » Mon Nov 25, 2019 9:19 am

Thank you for your answer, it helps a lot !

Benjamin


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