Guichard, Francoise; Kergoat, Laurent; Taylor, Christopher M. 
ORCID: https://orcid.org/0000-0002-0120-3198; Cappelaere, Bernard; Chong, Michel; Cohard, Jean-Martial; Couvreux, Fleur; Dione, Cheikh; Gounou, Amanda; Lohou, Fabienne; Lothon, Marie.
2012
Interactions entre surface et convection au Sahel.
La Meteorologie, 2012 (Oct).
25-32.
10.4267/2042/48129
Strong interactions and feedbacks between
surface processes and deep
convection occur in the Sahel. They
take place over a wide range of scales.
They are found to enhance surfaceatmosphere
energy exchanges during
the monsoon and to generate a large
variability of surface sensible and
latent heat fluxes in time and space.A
positive feedback is observed between
this variability, or more accurately soil
moisture heterogeneities, and the frequency
of initiation of convective systems.
This feedback operates at fine
scale, on the order of a few tens of kilometres.
The underlying mechanisms
and their modelling are discussed.
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