R
Ramdane Alkama
Researcher at Centre national de la recherche scientifique
Publications - 59
Citations - 5288
Ramdane Alkama is an academic researcher from Centre national de la recherche scientifique. The author has contributed to research in topics: Climate change & Climate model. The author has an hindex of 28, co-authored 54 publications receiving 3745 citations. Previous affiliations of Ramdane Alkama include French Alternative Energies and Atomic Energy Commission & Pierre-and-Marie-Curie University.
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Journal ArticleDOI
The CNRM-CM5.1 global climate model: description and basic evaluation
Aurore Voldoire,Emilia Sanchez-Gomez,D. Salas y Melia,Bertrand Decharme,Christophe Cassou,Stephane Sénési,Sophie Valcke,I. Beau,Antoinette Alias,Matthieu Chevallier,Michel Déqué,Julie Deshayes,Hervé Douville,Elodie Fernandez,Gurvan Madec,Eric Maisonnave,Marie-Pierre Moine,Serge Planton,David Saint-Martin,Sophie Szopa,S. Tyteca,Ramdane Alkama,S. Belamari,Alain Braun,Laure Coquart,Fabrice Chauvin +25 more
TL;DR: A new version of the general circulation model CNRM-CM has been developed jointly by CNRMs-GAME (Centre National de Recherches Meteorologiques-Groupe d'etudes de l’Atmosphere Meteorologique) and Cerfacs as discussed by the authors in order to contribute to phase 5 of the Coupled Model Intercomparison Project (CMIP5).
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The SURFEXv7.2 land and ocean surface platform for coupled or offline simulation of earth surface variables and fluxes
Valéry Masson,P. Le Moigne,Eric Martin,Stéphanie Faroux,Antoinette Alias,Ramdane Alkama,Sophie Belamari,Alina Barbu,Aaron Boone,F. Bouyssel,Pierre Brousseau,Eric Brun,Jean-Christophe Calvet,Dominique Carrer,Bertrand Decharme,Christine Delire,S. Donier,K. Essaouini,A.-L. Gibelin,Hervé Giordani,Florence Habets,M. Jidane,G. Kerdraon,Ekaterina Kourzeneva,Ekaterina Kourzeneva,Matthieu Lafaysse,Sébastien Lafont,C. Lebeaupin Brossier,Aude Lemonsu,Jean-François Mahfouf,P. Marguinaud,M. Mokhtari,S. Morin,G. Pigeon,Rui Salgado,Yann Seity,F. Taillefer,G. Tanguy,Pierre Tulet,Béatrice Vincendon,Vincent Vionnet,Aurore Voldoire +41 more
TL;DR: SURFEX as mentioned in this paper is an externalized land and ocean surface platform that describes the surface fluxes and the evolution of four types of surfaces: nature, town, inland water and ocean.
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Biophysical climate impacts of recent changes in global forest cover
TL;DR: An observation-driven assessment of the climate impacts of recent forest losses and gains, based on Earth observations of global forest cover and land surface temperatures, shows that forest losses amplify the diurnal temperature variation and increase the mean and maximum air temperature.
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Air temperature optima of vegetation productivity across global biomes.
Mengtian Huang,Shilong Piao,Shilong Piao,Philippe Ciais,Josep Peñuelas,Xuhui Wang,Trevor F. Keenan,Shushi Peng,Joseph A. Berry,Kai Wang,Jiafu Mao,Ramdane Alkama,Alessandro Cescatti,Matthias Cuntz,Hannes De Deurwaerder,Mengdi Gao,Yue He,Yongwen Liu,Yiqi Luo,Ranga B. Myneni,Shuli Niu,Xiaoying Shi,Wenping Yuan,Hans Verbeeck,Tao Wang,Jin Wu,Jin Wu,Ivan A. Janssens +27 more
TL;DR: In tropical forests in particular, Topteco is close to growing-season air temperature and is projected to fall below it under all scenarios of future climate, suggesting a limited safe operating space for these ecosystems under future warming.
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Satellites reveal contrasting responses of regional climate to the widespread greening of Earth
TL;DR: Satellite observations and remotely sensed dynamics in leaf area index reveal that the recent dynamics in global vegetation have had relevant biophysical impacts on the local climates and should be considered in the design of local mitigation and adaptation plans.