Studying atmosphere with different parameterization schemes of radiation - Mesoscale meteorological model WRF

Postgraduate Thesis uoadl:1318559 271 Read counter

Unit:
Κατεύθυνση Φυσική Περιβάλλοντος (ΕΦΑΡΜΟΣΜΕΝΗ ΦΥΣΙΚΗ)
Library of the School of Science
Deposit date:
2016-02-17
Year:
2016
Author:
Μεθυμάκη Γεωργία
Supervisors info:
Μαρία Τόμπρου Τζέλλα Αναπληρώτρια Καθηγήτρια
Original Title:
Μελέτη της ατμόσφαιρας με διαφορετικά σχήματα ακτινοβολίας - Μοντέλο μέσης κλίμακας WRF
Languages:
Greek
Translated title:
Studying atmosphere with different parameterization schemes of radiation - Mesoscale meteorological model WRF
Summary:
In this paper we compared two basic parameterization schemes of solar
radiation, Dudhia and Goddard, with the last one applied twice, allowing
radiation to interact with aerosols (WOF) and not allowing this feedback (WF).
Their performance is evaluated based on the results of the experiment
Aegean-GAME and on measurements of NOA 14 days at the end of the summer, in
Greece.
Better results in predicting solar radiation has Dudhia scheme and following
Goddard WF and Goddard WOF. Specially, Dudhia overestimates incoming direct
shortwave radiation by 4%, while Goddard WOF by 9% and Goddard WF by 2%.
As far as weather forecasting (wind, temperature, humidity), it is suggested
the usage of Goddard WOF scheme. When feedback is implemented wind,
temperature, and humidity is not severely affected and if any, the influence is
negative. The most likely reason is that aerosols are not allowed to serve as
condensation nuclei in the simulations, which would make the Goddard shape
approximating much better the physical processes.
Keywords:
Solar radiation, Parameterization, WRF, Feedback, Aerosols
Index:
Yes
Number of index pages:
5
Contains images:
Yes
Number of references:
46
Number of pages:
104
File:
File access is restricted.

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