 |
| Titel |
Ocean Dynamics Simulation during an Extreme Bora Event using a Two-Way Coupled Atmosphere-Ocean Modeling System |
| VerfasserIn |
Matjaz Licer, Peter Smerkol, Anja Fettich, Michalis Ravdas, Alexandros Papapostolou, Anneta Mantziafou, Jure Cedilnik, Benedikt Strajnar, Maja Jeromel, Neva Pristov, Jure Jerman, Sašo Petan, Vlado Malacic, Sarantis Sofianos |
| Konferenz |
EGU General Assembly 2015
|
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 17 (2015) |
| Datensatznummer |
250102595
|
| Publikation (Nr.) |
 EGU/EGU2015-1924.pdf |
|
|
|
|
|
| Zusammenfassung |
| The response of the Adriatic Sea to cold north-easterly Bora wind forcing has been modelled
numerous times, but usually using one-way coupling techniques. One of the most significant
events of the kind took place in February 2012, when hurricane force Bora was blowing over
the Northern Adriatic almost continuously for over three weeks, causing extreme air-sea
interactions leading to severe water cooling (below 4 degrees Celsius) and extensive
dense water formation (with density anomalies above 30.5 kg/m3). The intensity
of the atmosphere-ocean interactions during such conditions calls for a two-way
atmosphere-ocean coupling approach. We compare the performances of a) fully
two-way coupled atmosphere-ocean modelling system and b) one way coupled ocean
model (forced by the atmospheric model hourly output) to the available in-situ
measurements (coastal buoy, CTD). The models used were ALADIN (4.4 km resolution) on
the atmospheric side and POM (1/30°x 1/30° resolution) on the ocean side. The
atmosphere-ocean coupling was implemented using the OASIS3-MCT model coupling
toolkit. We show that the atmosphere-ocean two-way coupling significantly improves
the simulated temperature and density response of the ocean since it represents
short-termed transient features much better than the offline version of the ocean model. |
|
|
|
|
|
|