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Usporedba ohlađivanja dugovanim zračenjem i turbulencijom u planetarnom noćnom graničnom sloju atmosfere

Item

Title (Dublin Core)

hrv Usporedba ohlađivanja dugovanim zračenjem i turbulencijom u planetarnom noćnom graničnom sloju atmosfere
eng The cooling rates comparison between the longwave radiation and turbulence in nocturnal planetary boundary layer

Description (Dublin Core)

eng It is shown that the process of the air-cooling is dominated by the divergence of the longwave radiative flux in cases of night-time clear-sky conditions and with weak wind conditions.

The parameterization of the longwave radiative flux divergence is derived according to the emissivity concept and the Stefan-Boltzman law, assuming that the water vapor is the only absorber of longwave radiative. The parameterization of the turbulent temperature flux divergence has been based on the O’Brien’s K-profile.

In a very short time increment, the effect of the turbulence is probably greater than the radiative effect, but very stable conditions and the absence of significant advection during the night change this hierarchy, and pure longwave radiative effect, like a slow-diffusive process, prevail in the total cooling rate according to the theory and experiments.

The model was tested on the Wangara experiment data. The model results agree well with observations, measurements and numerical simulations made by other authors.

Creator (Dublin Core)

Grisogono, Branko
Subanović, Nebojša
Koračin, Darko

Subject (Dublin Core)

hrv dugovalno zračenje; turbulencija; noćni granični sloj
eng longwave radiation; turbulence; nocturnal boundary layer

Publisher (Dublin Core)

Andrija Mohorovicic Geophysical Institute

Date (Dublin Core)

1989

Type (Dublin Core)

text
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion

Format (Dublin Core)

application/pdf

Identifier (Dublin Core)

https://hrcak.srce.hr/20811
hrv https://hrcak.srce.hr/file/32758

Source (Dublin Core)

Geofizika
ISSN 0352-3659 (Print)
ISSN 1846-6346 (Online)
Volume 6
Issue 1

Language (Dublin Core)

hrv

Rights (Dublin Core)

info:eu-repo/semantics/openAccess
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