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| Titel |
Observed development of the vertical structure of the marine boundary layer during the LASIE experiment in the Ligurian Sea |
| VerfasserIn |
A. M. Sempreviva, M. E. Schiano, S. Pensieri, A. Semedo, R. Tomé, R. Bozzano, M. Borghini, F. Grasso, L. L. Soerensen, J. Teixeira, C. Transerici |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
0992-7689
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| Digitales Dokument |
URL |
| Erschienen |
In: Annales Geophysicae ; 28, no. 1 ; Nr. 28, no. 1 (2010-01-08), S.17-25 |
| Datensatznummer |
250016739
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| Publikation (Nr.) |
 copernicus.org/angeo-28-17-2010.pdf |
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| Zusammenfassung |
In the marine environment, complete datasets describing the surface layer
and the vertical structure of the Marine Atmospheric Boundary Layer (MABL),
through its entire depth, are less frequent than over land, due to the high
cost of measuring campaigns. During the seven days of the Ligurian Air-Sea
Interaction Experiment (LASIE), organized by the NATO Undersea Research
Centre (NURC) in the Mediterranean Sea, extensive in situ and remote sensing
measurements were collected from instruments placed on a spar buoy and a
ship. Standard surface meteorological measurements were collected by
meteorological sensors mounted on the buoy ODAS Italia1 located in the
centre of the Gulf of Genoa. The evolution of the height (zi) of the
MABL was monitored using radiosondes and a ceilometer on board of the N/O
Urania.
Here, we present the database and an uncommon case study of the evolution of
the vertical structure of the MABL, observed by two independent measuring
systems: the ceilometer and radiosondes. Following the changes of surface
flow conditions, in a sequence of onshore – offshore – onshore wind
direction shifting episodes, during the mid part of the campaign, the
overall structure of the MABL changed. Warm and dry air from land advected
over a colder sea, induced a stably stratified Internal Boundary Layer (IBL)
and a consequent change in the structure of the vertical profiles of
potential temperature and relative humidity. |
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