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Delaygue G., Jouzel J., Masson V. & Koster R. (2000). Validity of the isotopic thermometer in central Antarctica: impact of glacial precipitation seasonality and moisture origin. Geophysical research letters, 27(17), 2677–2680.
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Aristidi E., Agabi K., Vernin J., Azouit M., Martin F., Ziad A. & Fossat E. (2003). Antaractic site testing: first daytime seeing monitoring at dome C. ASTRONOMY & ASTROPHYSICS, 406, L19–L22.
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Aristidi E., Agabi A., Azouit M., Fossat E., Vernin J., Travouillon T., Lawrence J.S., Meyer C., Storey J.W.V., Halter B., Roth W.L. & Walden V.P. (2005). An analysis of temperatures and wind speeds above Dome C, Antarctica. Astronomy & astrophysics, 430, 739–746.
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Aristidi E., Agabi K., Fossat E., Azouit M., Martin F., Sadibekova T., Travouillon T., Vernin J. & Ziad A. (2005). Site testing in summer at Dome C, Antarctica. Astronomy & astrophysics, 444(2), 651–659.
Abstract: We present summer site testing results based on DIMM data obtained at Dome C, Antarctica. These data were collected on the bright star Canopus during two 3-months summer campaigns in 2003-2004 and 2004-2005. We performed continuous monitoring of the seeing and the isoplanatic angle in the visible. We found a median seeing of 0.54'' and a median isoplanatic angle of 6.8''. The seeing appears to have a deep minimum around 0.4'' almost every day in late afternoon.
Keywords: site testing
Programme: 908
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Agabi, A.; Aristidi, E.; Azouit, M.; Fossat, E.; Martin, F.; Sadibekova, T.; Vernin, J.; Ziad, A. (2006). First Whole Atmosphere Nighttime Seeing Measurements at Dome C, Antarctica. Publ. Astron. Soc. Pac., 118(840), 344–348.
Abstract: We report site-testing results obtained in the nighttime during the polar autumn and winter at Dome C. These results were collected during the first Concordia winterover by A. Agabi. They are based on seeing and isoplanatic angle monitoring, as well as in situ balloon measurements of the refractive index structure constant profiles C2n(h). Atmosphere is divided into two regions: (1) a 36 m high surface layer responsible for 87% of the turbulence, and (2) a very stable free atmosphere above, with a median seeing of 0.36“ +/- 0.19” at an elevation of h=30 m. The median seeing measured with a differential image motion monitor placed on top of an 8.5 m high tower is 1.3“ +/- 0.8”.
Keywords: Site Testing
Programme: 908
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Walker G. (2005). Seeing in the dark. Nature, 438, 414–415.
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Lawrence J.S., Ashley M.C., Tokovinin A. & Travouillon T. (2004). Exceptional astronomical seeing conditions above Dome C in Antartica. Nature, 431, 278–281.
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Fossat E. & Candidi M. (2003). The scientific outlook for astronamy and astrophysics research at the CONCORDIA Station. Societa astronomica italiana supplementi, pisa roma, 2, 01/01/237.
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Tomasi, C.; Petkov, B.; Benedetti, E.; Vitale, V.; Pellegrini, A.; Dargaud, G.; De Silvestri, L.; Grigioni, P.; Fossat, E.; Roth, W.L.; Valenziano, L. (2006). Characterization of the atmospheric temperature and moisture conditions above Dome C (Antarctica) during austral summer and fall months. J. Geophys. Res., 111.
Abstract: Two sets of radiosounding measurements were taken at Dome C (Antarctica) in December 2003 and January 2003 and 2004, using RS80-A, RS80-H, and RS90 Vaisala radiosondes, and from March to May 2005, employing the RS92 model. They were examined following accurate correction procedures to remove the main relative humidity dry bias and the temperature and humidity lag errors. The results showed that a strong cooling usually characterizes the thermal conditions of the whole troposphere from December/January to April/May, with an average temperature decrease from 245 to 220 K at the ground, of around 10 K at upper tropospheric levels, and of more than 15 K in the lower stratosphere. The relative humidity data were found to be affected by dry bias of 5–10%, on average, for the RS80-A and RS80-H Humicap sensors and by smaller percentages for the other sensors. The mean monthly vertical profiles of absolute humidity were found to decrease sharply throughout the troposphere, especially within the first 3 km, and to diminish considerably passing from December/January to March/April/May, with average values of precipitable water decreasing from 0.75 to 0.28 mm, median values from 0.69 to 0.25 mm, and first and third quartiles from 0.60 to 0.22 mm and from 0.87 to 0.34 mm, respectively. The results demonstrate that Dome C (where a permanent scientific station has been open for winter operations since austral winter 2005) is a site of comparable quality to the South Pole for both validation of satellite radiance measurements and astronomic observations in the infrared, submillimetric, and millimetric wavelength range, performed with large telescopes that cannot be carried on satellites.
Keywords: radiosounding measurements; precipitable water; Antarctic atmosphere; 3349 Atmospheric Processes: Polar meteorology; 1655 Global Change: Water cycles; 0365 Atmospheric Composition and Structure: Troposphere: composition and chemistry; 7539 Solar Physics, Astrophysics, and Astronomy: Stellar astronomy
Programme: 908
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Swain, M. R.; Coude du Foresto, V.; Fossat, E.; Vakili, F. (2003). The Antarctic Planet Interferometer and the Potential for Interferometric Observations of Extrasolar Planets from Dome C Antarctica. Memorie della Societa Astronomica Italiana Supplement, 2, 207.
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