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New perspectives on land-atmosphere feedbacks from the African Monsoon Multidisciplinary Analysis

  • Christopher M. Taylor
  • , Douglas J. Parker
  • , Norbert Kalthoff
  • , Miguel Angel Gaertner
  • , Nathalie Philippon
  • , Sophie Bastin
  • , Phil P. Harris
  • , Aaron Boone
  • , Françoise Guichard
  • , Anna Agusti-Panareda
  • , Marina Baldi
  • , Paolina Cerlini
  • , Luc Descroix
  • , Hervé Douville
  • , Cyrille Flamant
  • , Jean Yves Grandpeix
  • , Jan Polcher
  • Centre for Ecology and Hydrology
  • The University of Leeds
  • University of Leeds
  • Karlsruhe Institute of Technology
  • Environmental Sciences Faculty
  • Universidad de Castilla-La Mancha
  • Centre de Recherches de Climatologie, CNRS UMR 5210, Université de Bourgogne
  • CNRS
  • Météo-France/CNRS
  • European Centre for Medium-Range Weather Forecasts
  • Institute of Biometeorology
  • Ev-K2-CNR Committee
  • CRC/UniPg
  • Universität Karlsruhe/Forschungszentrum Karlsruhe

Résultats de recherche: Contribution à un journalArticleRevue par des pairs

52 Citations (Scopus)

Résumé

Research into land-atmosphere coupling within the African Monsoon Multidisciplinary Analysis has highlighted the atmospheric impact of soil moisture on space scales of 5 km upwards and time scales of several days. Observational and modelling studies have shown how antecedent rainfall patterns affect new storms in the Sahel. The land feedback operates through various mechanisms, including a direct link to afternoon storm initiation from surface-induced mesoscale circulations, and indirectly via a large-scale moisture transport in the nocturnal monsoon. The results suggest potential for significant improvements in weather forecasting through assimilation of satellite data. Intriguing questions remain about the importance of vegetation memory on seasonal-interannual scales.

langue originaleAnglais
Pages (de - à)38-44
Nombre de pages7
journalAtmospheric Science Letters
Volume12
Numéro de publication1
Les DOIs
étatPublié - 1 janv. 2011

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