Meso-Nh simulations of the atmospheric flow above the Internal Antarctic Plateau
Mesoscale model such as Meso-Nh have proven to be highly reliable in reproducing 3D maps of optical turbulence (see Refs. 1, 2, 3, 4) above mid-latitude astronomical sites. These last years ground-based astronomy has been looking towards Antarctica. Especially its summits and the Internal Continenta...
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ftdatacite:10.48550/arxiv.1001.0484 2023-05-15T13:48:17+02:00 Meso-Nh simulations of the atmospheric flow above the Internal Antarctic Plateau Lascaux, Franck Masciadri, Elena Hagelin, Susanna Stoesz, Jeffrey A. 2010 https://dx.doi.org/10.48550/arxiv.1001.0484 https://arxiv.org/abs/1001.0484 unknown arXiv https://dx.doi.org/10.1117/12.787571 arXiv.org perpetual, non-exclusive license http://arxiv.org/licenses/nonexclusive-distrib/1.0/ Instrumentation and Methods for Astrophysics astro-ph.IM Solar and Stellar Astrophysics astro-ph.SR Atmospheric and Oceanic Physics physics.ao-ph FOS Physical sciences article-journal Article ScholarlyArticle Text 2010 ftdatacite https://doi.org/10.48550/arxiv.1001.0484 https://doi.org/10.1117/12.787571 2022-04-01T15:13:49Z Mesoscale model such as Meso-Nh have proven to be highly reliable in reproducing 3D maps of optical turbulence (see Refs. 1, 2, 3, 4) above mid-latitude astronomical sites. These last years ground-based astronomy has been looking towards Antarctica. Especially its summits and the Internal Continental Plateau where the optical turbulence appears to be confined in a shallow layer close to the icy surface. Preliminary measurements have so far indicated pretty good value for the seeing above 30-35 m: 0.36" (see Ref. 5) and 0.27" (see Refs. 6, 7) at Dome C. Site testing campaigns are however extremely expensive, instruments provide only local measurements and atmospheric modelling might represent a step ahead towards the search and selection of astronomical sites thanks to the possibility to reconstruct 3D Cn2 maps over a surface of several kilometers. The Antarctic Plateau represents therefore an important benchmark test to evaluate the possibility to discriminate sites on the same plateau. Our group8 has proven that the analyses from the ECMWF global model do not describe with the required accuracy the antarctic boundary and surface layer in the plateau. A better description could be obtained with a mesoscale meteorological model. In this contribution we present the progress status report of numerical simulations (including the optical turbulence - Cn2) obtained with Meso-Nh above the internal Antarctic Plateau. Among the topic attacked: the influence of different configurations of the model (low and high horizontal resolution), use of the grid-nesting interactive technique, forecasting of the optical turbulence during some winter nights. : 12 pages, 4 figures, SPIE 2008 conference Text Antarc* Antarctic Antarctica DataCite Metadata Store (German National Library of Science and Technology) Antarctic The Antarctic |
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DataCite Metadata Store (German National Library of Science and Technology) |
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language |
unknown |
topic |
Instrumentation and Methods for Astrophysics astro-ph.IM Solar and Stellar Astrophysics astro-ph.SR Atmospheric and Oceanic Physics physics.ao-ph FOS Physical sciences |
spellingShingle |
Instrumentation and Methods for Astrophysics astro-ph.IM Solar and Stellar Astrophysics astro-ph.SR Atmospheric and Oceanic Physics physics.ao-ph FOS Physical sciences Lascaux, Franck Masciadri, Elena Hagelin, Susanna Stoesz, Jeffrey A. Meso-Nh simulations of the atmospheric flow above the Internal Antarctic Plateau |
topic_facet |
Instrumentation and Methods for Astrophysics astro-ph.IM Solar and Stellar Astrophysics astro-ph.SR Atmospheric and Oceanic Physics physics.ao-ph FOS Physical sciences |
description |
Mesoscale model such as Meso-Nh have proven to be highly reliable in reproducing 3D maps of optical turbulence (see Refs. 1, 2, 3, 4) above mid-latitude astronomical sites. These last years ground-based astronomy has been looking towards Antarctica. Especially its summits and the Internal Continental Plateau where the optical turbulence appears to be confined in a shallow layer close to the icy surface. Preliminary measurements have so far indicated pretty good value for the seeing above 30-35 m: 0.36" (see Ref. 5) and 0.27" (see Refs. 6, 7) at Dome C. Site testing campaigns are however extremely expensive, instruments provide only local measurements and atmospheric modelling might represent a step ahead towards the search and selection of astronomical sites thanks to the possibility to reconstruct 3D Cn2 maps over a surface of several kilometers. The Antarctic Plateau represents therefore an important benchmark test to evaluate the possibility to discriminate sites on the same plateau. Our group8 has proven that the analyses from the ECMWF global model do not describe with the required accuracy the antarctic boundary and surface layer in the plateau. A better description could be obtained with a mesoscale meteorological model. In this contribution we present the progress status report of numerical simulations (including the optical turbulence - Cn2) obtained with Meso-Nh above the internal Antarctic Plateau. Among the topic attacked: the influence of different configurations of the model (low and high horizontal resolution), use of the grid-nesting interactive technique, forecasting of the optical turbulence during some winter nights. : 12 pages, 4 figures, SPIE 2008 conference |
format |
Text |
author |
Lascaux, Franck Masciadri, Elena Hagelin, Susanna Stoesz, Jeffrey A. |
author_facet |
Lascaux, Franck Masciadri, Elena Hagelin, Susanna Stoesz, Jeffrey A. |
author_sort |
Lascaux, Franck |
title |
Meso-Nh simulations of the atmospheric flow above the Internal Antarctic Plateau |
title_short |
Meso-Nh simulations of the atmospheric flow above the Internal Antarctic Plateau |
title_full |
Meso-Nh simulations of the atmospheric flow above the Internal Antarctic Plateau |
title_fullStr |
Meso-Nh simulations of the atmospheric flow above the Internal Antarctic Plateau |
title_full_unstemmed |
Meso-Nh simulations of the atmospheric flow above the Internal Antarctic Plateau |
title_sort |
meso-nh simulations of the atmospheric flow above the internal antarctic plateau |
publisher |
arXiv |
publishDate |
2010 |
url |
https://dx.doi.org/10.48550/arxiv.1001.0484 https://arxiv.org/abs/1001.0484 |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic Antarctica |
genre_facet |
Antarc* Antarctic Antarctica |
op_relation |
https://dx.doi.org/10.1117/12.787571 |
op_rights |
arXiv.org perpetual, non-exclusive license http://arxiv.org/licenses/nonexclusive-distrib/1.0/ |
op_doi |
https://doi.org/10.48550/arxiv.1001.0484 https://doi.org/10.1117/12.787571 |
_version_ |
1766249073244897280 |