Single interval shortwave radiation scheme with parameterized optical saturation and spectral overlaps

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67179843%3A_____%2F16%3A00446801" target="_blank" >RIV/67179843:_____/16:00446801 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1002/qj.2653" target="_blank" >http://dx.doi.org/10.1002/qj.2653</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/qj.2653" target="_blank" >10.1002/qj.2653</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Single interval shortwave radiation scheme with parameterized optical saturation and spectral overlaps

Popis výsledku v původním jazyce

Spectral integration is the most time consuming part of solar radiative transfer codes used in numerical weather prediction. Routinely used approaches usually incline to one of two extremes ? expensive and very accurate correlated k-distribution method made affordable by doing radiative transfer calculations with reduced temporal and/or spatial resolution, or cheaper but less accurate broadband approach affordable at every grid-point and time-step. Both approaches have their pros and cons, but hybrid solutions do not seem very promising. The presented work improves accuracy of full spectrum broadband approach by parameterizing secondary saturation of gaseous absorption, optical saturation of Rayleigh scattering and of cloud absorption as well as non-random gas-cloud spectral overlap. In order to isolate the problem of spectral integration from other approximations, one builds a narrowband reference using the same delta-two stream framework as the broadband scheme. Using this reference

Název v anglickém jazyce

Single interval shortwave radiation scheme with parameterized optical saturation and spectral overlaps

Popis výsledku anglicky

Spectral integration is the most time consuming part of solar radiative transfer codes used in numerical weather prediction. Routinely used approaches usually incline to one of two extremes ? expensive and very accurate correlated k-distribution method made affordable by doing radiative transfer calculations with reduced temporal and/or spatial resolution, or cheaper but less accurate broadband approach affordable at every grid-point and time-step. Both approaches have their pros and cons, but hybrid solutions do not seem very promising. The presented work improves accuracy of full spectrum broadband approach by parameterizing secondary saturation of gaseous absorption, optical saturation of Rayleigh scattering and of cloud absorption as well as non-random gas-cloud spectral overlap. In order to isolate the problem of spectral integration from other approximations, one builds a narrowband reference using the same delta-two stream framework as the broadband scheme. Using this reference

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

DG - Vědy o atmosféře, meteorologie

OECD FORD obor

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Projekt

<a href="/cs/project/ED1.1.00%2F02.0073" target="_blank" >ED1.1.00/02.0073: CzechGlobe ? Centrum pro studium dopadu globální zmeny klimatu</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2016

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Quarterly Journal of the Royal Meteorological Society

ISSN

0035-9009

e-ISSN

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Svazek periodika

142

Číslo periodika v rámci svazku

659

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

23

Strana od-do

304-326

Kód UT WoS článku

000369978300026

EID výsledku v databázi Scopus

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