Numerical simulations of optical turbulence at low and high horizontal resolution in Antarctica with a mesoscale meteorological model
EAS Publications Series, ISSN: 1633-4760, Vol: 40, Page: 97-101
2010
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Book Chapter Description
It has already been demonstrated that a mesoscale meteorological model such as Meso-NH (Lafore et al. 1998) is highly reliable in reproducing 3D maps of optical turbulence (Masciadri et al. 1999; Masciadri & Jabouille 2001; Masciadri et al. 2004). Preliminary measurements above the Antarctic Plateau have so far indicated a pretty good value for the seeing: 0.27″ (Lawrence et al. 2004 ), 0.36″ (Agabi et al. 2008) or 0.4″ (Trinquet et al. 2008) at Dome C. However some uncertainties remain. That's why our group is focusing on a detailed study of the atmospheric flow and turbulence in the internal Antarctic Plateau. Our intention is to use the Meso-NH model to do predictions of the atmospheric flow and the corresponding optical turbulence in the internal plateau. The use of this model has another huge advantage: we have access to informations inside an entire 3D volume which is not the case with observations only. Two different configurations have been used: a low horizontal resolution (with a mesh-size of 100 km) and a high horizontal resolution with the grid-nesting interactive technique (with a mesh-size of 1 km in the innermost domain centered above the area of interest). We present here the turbulence distribution reconstructed by Meso-NH for 16 nights monitored in winter time 2005, looking at the the seeing and the surface layer thickness. © 2010 EAS, EDP Sciences.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=73549105919&origin=inward; http://dx.doi.org/10.1051/eas/1040012; http://www.eas-journal.org/10.1051/eas/1040012; http://www.eas-journal.org/10.1051/eas/1040012/pdf; https://dx.doi.org/10.1051/eas/1040012; https://www.eas-journal.org/articles/eas/abs/2010/01/eas1040012/eas1040012.html
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