17 research outputs found
Orographic influences on the Adriatic sirocco wind
Differences between meteorological fields over the Adriatic Sea as predicted by the mesoscale meteorological model ALADIN/HR and global ECMWF model, for sirocco episodes between November 2002 and September 2003, are analysed. Results indicate that the orography, namely Gargano Mountains and Apennines, may have a significant effect on the sirocco airflow. A brief discussion is given on the impact of the sirocco wind curl on the Western Adriatic Current (WAC)
Diurnal internal tides detected in the Adriatic
Strong diurnal oscillations, documented by temperature data that were
collected along a submarine cliff on the Lastovo Island (southern Adriatic),
are studied and compared with sea level and wind measurements at Dubrovnik
and Komiža (island of Vis). Three thermistors were deployed at the
depths of 15, 22 and 36 m between March 2001 and March 2002. Pronounced
diurnal temperature oscillations were detected at 15 and 22 m during the
stratified season. The correlation between the sea surface and thermocline
displacements was highest in June 2001, when diurnal wind changes were not
significant, while diurnal sea level oscillations achieved annual maxima.
Thermocline oscillations were in phase with sea level changes. The range of
diurnal sea surface variability was close to 19 cm, while the range of
corresponding thermocline variability was about 5.4 m. The findings
summarize the outcome of the first dedicated study of internal tides in the
Adriatic
Coastal sea responses to atmospheric forcings at two different resolutions
We investigated coastal sea responses to three,
multi-day strong wind episodes that occurred in the middle
Adriatic during the Target Operational Period (TOP) of
the European COastal sea OPerational observing and forecasting
system (ECOOP) project. A high-resolution oceanographic
model (1 km horizontal, 16 vertical layers) based
on the modified Princeton Ocean Model (POM) was applied
to a highly complex domain located in the coastal area of the
eastern Adriatic Sea. The oceanographic model was nested
into the Adriatic REGional model (AREG-2) covering the
entire Adriatic Sea. Meteorological forcing was prepared by
two atmospheric models. The coarser model was the European
Centre for Medium-range Weather Forecast model
(ECMWF, with horizontal and temporal resolutions of 0.25
and 6 h, respectively), and the finer one was the Aire LimitĀ“ee
Adaptation dynamique DĀ“eveloppement InterNational model
(ALADIN, with horizontal and temporal resolutions of 8 km
and 3 h, respectively, and winds dynamically adapted to a
horizontal resolution of 2 km). The results show that smallscale
atmospheric features, which arise due to the orographically
complex mainland and the number of islands and were
not reproduced by the coarser atmospheric model, substantially
affected surface currents, mass transports, sea surface
temperature (SST) and surface salinity in the coastal area
during strong Bora. For strong Sirocco, the atmospheric
modelās resolution was important for currents on the lee sides
of islands.Published521ā532JCR Journalope