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| Titel |
Characterization of the boundary layer at Dome C (East Antarctica) during the OPALE summer campaign |
| VerfasserIn |
H. Gallée, S. Preunkert, S. Argentini, M. M. Frey, C. Genthon, B. Jourdain, I. Pietroni, G. Casasanta, H. Barral, E. Vignon, C. Amory, M. Legrand |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1680-7316
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| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Chemistry and Physics ; 15, no. 11 ; Nr. 15, no. 11 (2015-06-08), S.6225-6236 |
| Datensatznummer |
250119794
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| Publikation (Nr.) |
 copernicus.org/acp-15-6225-2015.pdf |
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| Zusammenfassung |
| Regional climate model MAR (Modèle Atmosphérique Régional) was
run for the region of Dome C located on the East Antarctic plateau, during
Antarctic summer 2011–2012, in order to refine our understanding of
meteorological conditions during the OPALE tropospheric chemistry campaign. A
very high vertical resolution is set up in the lower troposphere, with a grid
spacing of roughly 2 m. Model output is compared with temperatures and winds
observed near the surface and from a 45 m high tower as well as sodar and
radiation data. MAR is generally in very good agreement with the
observations, but sometimes underestimates cloud formation, leading to an
underestimation of the simulated downward long-wave radiation. Absorbed
short-wave radiation may also be slightly overestimated due to an
underestimation of the snow albedo, and this influences the surface energy
budget and atmospheric turbulence. Nevertheless, the model provides
sufficiently reliable information about surface turbulent fluxes, vertical
profiles of vertical diffusion coefficients and boundary layer height when
discussing the representativeness of chemical measurements made nearby the
ground surface during field campaigns conducted at Concordia station located
at Dome C (3233 m above sea level). |
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