Charlotte Lang
University of Liège
Network
Latest external collaboration on country level. Dive into details by clicking on the dots.
Publication
Featured researches published by Charlotte Lang.
Climate Dynamics | 2013
Alexandre Belleflamme; Xavier Fettweis; Charlotte Lang; Michel Erpicum
The Greenland ice sheet is projected to be strongly affected by global warming. These projections are either issued from downscaling methods (such as Regional Climate Models) or they come directly from General Circulation Models (GCMs). In this context, it is necessary to evaluate the accuracy of the daily atmospheric circulation simulated by the GCMs, since it is used as forcing for downscaling methods. Thus, we use an automatic circulation type classification based on two indices (Euclidean distance and Spearman rank correlation using the daily 500 hPa geopotential height) to evaluate the ability of the GCMs from both CMIP3 and CMIP5 databases to simulate the main circulation types over Greenland during summer. For each circulation type, the GCMs are compared to three reanalysis datasets on the basis of their frequency and persistence differences. For the current climate (1961–1990), we show that most of the GCMs do not reproduce the expected frequency and the persistence of the circulation types and that they simulate poorly the observed daily variability of the general circulation. Only a few GCMs can be used as reliable forcings for downscaling methods over Greenland. Finally, when applying the same approach to the future projections of the GCMs, no significant change in the atmospheric circulation over Greenland is detected, besides a generalised increase of the geopotential height due to a uniform warming of the atmosphere.
The Cryosphere | 2012
Xavier Fettweis; Edward Hanna; Charlotte Lang; Alexandre Belleflamme; Michel Erpicum; Hubert Gallée
The Cryosphere | 2016
Xavier Fettweis; Jason E. Box; Cécile Agosta; Charles Amory; Christoph Kittel; Charlotte Lang; Dirk van As; Horst Machguth; Hubert Gallée
The Cryosphere | 2012
Bruno Franco; Xavier Fettweis; Charlotte Lang; Michel Erpicum
The Cryosphere | 2014
Charlotte Lang; Xavier Fettweis; Michel Erpicum
The Cryosphere | 2015
Charlotte Lang; Xavier Fettweis; Michel Erpicum
The Cryosphere | 2017
Johannes Jakob Fürst; Fabien Gillet-Chaulet; Toby Benham; Julian A. Dowdeswell; Mariusz Grabiec; Francisco Navarro; Rickard Pettersson; Geir Moholdt; Christopher Nuth; Björn Sass; Kjetil Schanke Aas; Xavier Fettweis; Charlotte Lang; Thorsten Seehaus; Matthias Braun
Archive | 2018
Xavier Fettweis; Alison Delhasse; Cécile Agosta; Charles Amory; Charlotte Lang
Geophysical Research Letters | 2018
Johannes Jakob Fürst; Francisco Navarro; Fabien Gillet-Chaulet; Matthias Huss; Geir Moholdt; Xavier Fettweis; Charlotte Lang; Thorsten Seehaus; Songtao Ai; Toby Benham; Doug Benn; Helgi Björnsson; Julian A. Dowdeswell; Mariusz Grabiec; Jack Kohler; Ivan Lavrentiev; Katrin Lindbäck; Kjetil Melvold; Rickard Pettersson; David M. Rippin; Albane Saintenoy; Pablo Sánchez-Gámez; Thomas Vikhamar Schuler; Heïdi Sevestre; Evgeny Vasilenko; Matthias Braun
Archive | 2016
Christoph Kittel; Charlotte Lang; Cécile Agosta; Maxime Prignon; Xavier Fettweis; Michel Erpicum