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| Titel |
Computed and observed turbulent heat fluxes during an extreme Bora event in the Adriatic using atmosphere-ocean coupling |
| VerfasserIn |
Matjaz Licer, Peter Smerkol, Anja Fettich, Michalis Ravdas, Alexandros Papapostolou, Anneta Mantziafou, Benedikt Strajnar, Jure Cedilnik, Maja Jeromel, Jure Jerman, Sašo Petan, Alvise Benetazzo, Sandro Carniel, Vlado Malacic, Sarantis Sofianos |
| Konferenz |
EGU General Assembly 2016
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| Medientyp |
Artikel
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| Sprache |
en
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 18 (2016) |
| Datensatznummer |
250122933
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| Publikation (Nr.) |
 EGU/EGU2016-2084.pdf |
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| Zusammenfassung |
| We have studied the performances of (a) a two-way coupled atmosphere–ocean modeling
system and (b) one-way coupled ocean model (forced by the atmosphere model), as
compared to the available in situ measurements during and after a strong Adriatic Bora wind
event in February 2012, which led to extreme air–sea interactions. The simulations span the
period between January and March 2012. The models used were ALADIN (4.4 km
resolution) on the atmosphere side and Adriatic setup of POM (1∘∕30 × 1∘∕30 angular
resolution) on the ocean side. The atmosphere-ocean coupling was implemented using the
OASIS3-MCT model coupling toolkit. Two-way coupling ocean feedback to the atmosphere
is limited to sea surface temperature. We have compared modeled atmosphere-ocean fluxes
(computed using modified Louis scheme) and sea temperatures from both setups to platform
and CTD measurements of fluxes (computed using COARE scheme) and temperatures from
three observational platforms (Vida, Paloma, Acqua Alta) in the Northern Adriatic.
We show that turbulent fluxes from both setups differ up to 20% during the Bora
but not significantly before and after the event. The impact of the coupling on the
ocean is significant while the impact on the atmosphere is less pronounced. When
compared to observations, two way coupling ocean temperatures exhibit a four
times lower RMSE than those from one-way coupled system. Two-way coupling
improves sensible heat fluxes at all stations but does not improve latent heat loss. |
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