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. (2016). Oxygen isotope mass balance of atmospheric nitrate at Dome C, East Antarctica, during the OPALE campaign (Vol. 16). Bachelor's thesis, , .
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Genthon Christophe, Town Michael S, Six Delphine, Favier Vincent, Argentini Stefania, Pellegrini Andrea, . (2010). Meteorological atmospheric boundary layer measurements and ECMWF analyses during summer at Dome C, Antarctica
. J. Geophys. Res., 115(D5), D05104–.
Keywords: Antarctica, boundary layer, ECMWF, 3307 Atmospheric Processes: Boundary layer processes, 0798 Cryosphere: Modeling, 0394 Atmospheric Composition and Structure: Instruments and techniques,
Programme: 1013
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. (2010). The Concordiasi Project in Antarctica
. BULLETIN OF THE AMERICAN METEOROLOGICAL SOCIETY, 91(1), 69–85.
Abstract: Abstract The Concordiasi project is making innovative observations of the atmosphere above Antarctica. The most important goals of the Concordiasi are as follows: To enhance the accuracy of weather prediction and climate records in Antarctica through the assimilation of in situ and satellite data, with an emphasis on data provided by hyperspectral infrared sounders. The focus is on clouds, precipitation, and the mass budget of the ice sheets. The improvements in dynamical model analyses and forecasts will be used in chemical-transport models that describe the links between the polar vortex dynamics and ozone depletion, and to advance the understanding of the Earth system by examining the interactions between Antarctica and lower latitudes.To improve our understanding of microphysical and dynamical processes controlling the polar ozone, by providing the first quasi-Lagrangian observations of stratospheric ozone and particles, in addition to an improved characterization of the 3D polar vortex dynamics. Tech...
Programme: 1013
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Brandun M.
Genthon C. (2010). Studies of Antarctic precipitation statistics.
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Genthon, C.
Town M.
Favier V.
Genoni L.,
Pouzenc C.
Pellegrini A. (2010). Extremely stable boundary layer on the Antarctic plateau.
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Trouvilliez A. (2010). Bachelor's thesis, , .
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. (2010). First measurements of temperature and humidity in the PBL at Dome C, Antarctica.
Abstract: ISARS conference proceedings
Programme: 1013
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GENTHON C, MAGAND O, KRINNER G, FILY M, . (2009). Do climate models underestimate snow accumulation on the Antarctic plateau? A re-evaluation of/from in situ observations in East Wilkes and Victoria Lands
. Annals of glaciology, 50, 61–65.
Abstract: It has been suggested that meteorological and climate models underestimate snow accumulation on the Antarctic plateau, because accumulation (or surface mass balance (SMB)) is dominated by clear-sky precipitation while this process is not properly taken into account in the models. Here, we show that differences between model and field SMB data are much reduced when the in situ SMB reports used to evaluate the models are filtered through quality-control criteria and less reliable reports are subsequently left out. We thus argue that, although not necessarily unsupported, model biases and their interpretations in terms of clear-sky vs synoptic precipitation on the Antarctic plateau may have been overstated in the past. To avoid such misleading issues, it is important that in situ SMB reports of insufficient or unassessed reliability are discarded, even at the cost of a strong reduction in spatial sampling and coverage.
Programme: 1013
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Barandun M. (2009). Studies of Antarctic precipitation statistics.
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Genthon C, Krinner G, Castebrunet H, . (2009). Antarctic precipitation and climate-change predictions: horizontal resolution and margin vs plateau issues
. Annals of Glaciology, 50(50), 55–60.
Abstract: All climate models participating in the Fourth Assessment Report of the Intergovernmental Panel on Climate Change, as made available by the Program for Climate Model Diagnosis and Intercomparison (PCMDI) as the Coupled Model Intercomparison Project 3 (CMIP3) archive, predict a significant surface warming of Antarctica by the end of the 21st century under a moderate (SRESA1B) greenhouse-gas scenario. All models but one predict a concurrent precipitation increase but with a large scatter of results. The models with finer horizontal resolution tend to predict a larger precipitation increase. Because modeled Antarctic surface mass balance is known to be sensitive to horizontal resolution, extrapolating predictions from the different models with respect to model resolution may provide simple yet better multi-model estimates of Antarctic precipitation change than mere averaging or even more complex approaches. Using such extrapolation, a conservative estimate of the predicted precipitation increase at the end of the 21st century is +30 kg m2a1 on the grounded ice sheet, corresponding to a >1 mm a1 sea-level rise. About three-quarters of this rise originates from the marginal regions of the Antarctic ice sheet with surface elevation below 2250 m. This is where field programs are most urgently needed to better understand and monitor accumulation at the surface of Antarctica, and to improve and verify prediction models.
Programme: 1013
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