Concours CNRS CR2, Section 19. Meudon, 17 Mars 2010 Irina Gorodetskaya for Laboratoire de Glaciologie et Géophysique de l’Environne CNRS, Université Joseph Fourier-Grenoble) Cryosphere Clouds Understanding Clouds and Their Effects on Radiative Budget and Precipitation in the Present and Future Polar Climate using model simulations and observations
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Concours CNRS CR2, Section 19. Meudon, 17 Mars 2010 Irina Gorodetskaya Candidate for Laboratoire de Glaciologie et Géophysique de l’Environnement, (UMR.
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Concours CNRS CR2, Section 19. Meudon, 17 Mars 2010
Irina Gorodetskaya
Candidate for Laboratoire de Glaciologie et Géophysique de l’Environnement, (UMR 5183 CNRS, Université Joseph Fourier-Grenoble)
Cryosphere
Clouds
Understanding Clouds and Their Effects on Radiative Budget and Precipitation in the Present and
Future Polar Climate
using model simulations and observations
Motivation CLOUDS?
Arctic sea icedecline!
2007x x
2008?
Credit: NSIDC
Arctic September sea ice extent
2009x
Relative annual mean precipitation change on the Antarctic ice sheet during the 21st century
Krinner et al. 2007
Antarctic precipitation increase?
The role of clouds in the Arctic sea ice
decline
Gorodetskaya and Tremblay 2008,AGU monograph “Arctic sea ice decline”
PhD at Lamont-Doherty Earth Observatory, Columbia University2002-2007 :
My Background
CCSM3 A1B CCSM3 A1B
Model simulations of present and future
Antarctic climate andsfc mass balance
My Background
Postdoctorat at Laboratoire de Glaciologieet Géophysique de l’Environnement November 2007 - present:
supervisors: H. Gallée and G. Krinner
Surface air temperaturedifference between the two models:
MAR nested in LMDZ
Gorodetskaya, Gallée, Krinner, in prep
Large-scale model (LMDZ)
Mesoscale model (MAR)
1981-1989 annual mean
Postdoctorat at K. U. Leuven, Belgium August 2009 - present:
Clouds and hydrologic cycle of Antarcticasupervisor: N. van Lipzig
My Background
AWS
• Phase 1 : meteorological and cloud measurements at the new Belgian Antarctic Station (Dronning Maud Land)
Cloud height
Precipitation
x
Cloud base temperature
• Phase 2 : use obtained data for regional model validation
Research project :
Clouds and Radiative Feedbacks in Present and Future Polar Climate