http://www.cnr.it/ontology/cnr/individuo/prodotto/ID44701
Summer boundary-layer height at the plateau site of Dome C, Antarctica (Articolo in rivista)
- Type
- Label
- Summer boundary-layer height at the plateau site of Dome C, Antarctica (Articolo in rivista) (literal)
- Anno
- 2005-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1007/s10546-004-5643-6 (literal)
- Alternative label
Argentini S., A. Viola, A. Sempreviva, I. Petenko (2005)
Summer boundary-layer height at the plateau site of Dome C, Antarctica
in Boundary - layer meteorology
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Argentini S., A. Viola, A. Sempreviva, I. Petenko (literal)
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- Note
- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- CNR, Ist Sci Atmosfera & Clima, I-00133 Rome, Italy
Russian Acad Sci, AM Obukhov Inst Atmospher Phys, Moscow 109017, Russia (literal)
- Titolo
- Summer boundary-layer height at the plateau site of Dome C, Antarctica (literal)
- Abstract
- Measurements of the mean and turbulent structure of the planetary boundary layer by a sodar and a sonic anemometer, and radiative measurements by a radiometer, were carried out in the summer 1999-2000 at the Antarctic plateau station of Dome C during a two-month period.
At Dome C strong ground-based inversions dominate for most of the year. However, in spite of the low surface temperatures (between 50 °C and 20 °C), and the surface always covered by snow and ice, a regular daytime boundary layer evolution, similar to that observed at mid-latitudes, was observed during summer time. The mixed layer height generally reaches 200-300 m at 1300-1400 LST in high summer (late December, early January). Late in the summer (end of January February), as the solar elevation decreases, it reduces to 100-200 m.
A comparison between the mixed-layer height estimated from sodar measurements and the one calculated using a mixed-layer growth model shows a rather satisfactory agreement if we assign 0.01-0.02 m s-1 for the subsidence velocity at the top of the mixed layer , and 0.003-0.004 K m-1 for the potential temperature gradient above the mixed layer. (literal)
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