Contrasted land-surface processes along the West African rainfall gradient

L. Séguis; Nicolas Boulain; B. Cappelaere; Jean Martial Cohard; Guillaume Favreau; Sylvie Galle; A. Guyot; P. Hiernaux; É Mougin; C. Peugeot; D. Ramier; Josiane Seghieri; F. Timouk; V. Demarez; J. Demarty; L. Descroix; M. Descloitres; M. Grippa; Francois Guichard; B. Kamagaté; L Kergoat; T Lebel; V. Le Dantec; M. Le Lay; Sylvain Massuel; V. Trichon

doi:10.1002/asl.327

Contrasted land-surface processes along the West African rainfall gradient

L. Séguis, Nicolas Boulain, B. Cappelaere, Jean Martial Cohard, Guillaume Favreau, Sylvie Galle, A. Guyot, P. Hiernaux, É Mougin, C. Peugeot, D. Ramier, Josiane Seghieri, F. Timouk, V. Demarez, J. Demarty, L. Descroix, M. Descloitres, M. Grippa, Francois Guichard, B. KamagatéL Kergoat, T Lebel, V. Le Dantec, M. Le Lay, Sylvain Massuel, V. Trichon

Research output: Contribution to journal › Review Article › Research › peer-review

19 Citations (Scopus)

Abstract

We review the main results of land-surface studies obtained in the three sites of the long-term observing system AMMA-CATCH. Runoff in the Sahel enhances the variability of energy partitioning between non-infiltrative areas where sensible heat is dominant and infiltrative areas where soil water availability increases the latent flux. In terms of water resources, an increase in runoff over the past 50 years, already reported for the exoreic Sahel, was revealed in the endoreic Sahel. In the Sudanian domain, the subsurface origin of streamflow could explain its decrease over the same period.

Original language	English
Pages (from-to)	31-37
Number of pages	7
Journal	Atmospheric Science Letters
Volume	12
Issue number	1
DOIs	https://doi.org/10.1002/asl.327
Publication status	Published - Jan 2011
Externally published	Yes

Keywords

Energy fluxes
Groundwater
Runoff
Sahel
Sudanian climate
Water resources

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Cite this

Séguis, L., Boulain, N., Cappelaere, B., Cohard, J. M., Favreau, G., Galle, S., Guyot, A., Hiernaux, P., Mougin, É., Peugeot, C., Ramier, D., Seghieri, J., Timouk, F., Demarez, V., Demarty, J., Descroix, L., Descloitres, M., Grippa, M., Guichard, F., ... Trichon, V. (2011). Contrasted land-surface processes along the West African rainfall gradient. Atmospheric Science Letters, 12(1), 31-37. https://doi.org/10.1002/asl.327

Séguis, L. ; Boulain, Nicolas ; Cappelaere, B. ; Cohard, Jean Martial ; Favreau, Guillaume ; Galle, Sylvie ; Guyot, A. ; Hiernaux, P. ; Mougin, É ; Peugeot, C. ; Ramier, D. ; Seghieri, Josiane ; Timouk, F. ; Demarez, V. ; Demarty, J. ; Descroix, L. ; Descloitres, M. ; Grippa, M. ; Guichard, Francois ; Kamagaté, B. ; Kergoat, L ; Lebel, T ; Le Dantec, V. ; Le Lay, M. ; Massuel, Sylvain ; Trichon, V. / Contrasted land-surface processes along the West African rainfall gradient. In: Atmospheric Science Letters. 2011 ; Vol. 12, No. 1. pp. 31-37.

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title = "Contrasted land-surface processes along the West African rainfall gradient",

abstract = "We review the main results of land-surface studies obtained in the three sites of the long-term observing system AMMA-CATCH. Runoff in the Sahel enhances the variability of energy partitioning between non-infiltrative areas where sensible heat is dominant and infiltrative areas where soil water availability increases the latent flux. In terms of water resources, an increase in runoff over the past 50 years, already reported for the exoreic Sahel, was revealed in the endoreic Sahel. In the Sudanian domain, the subsurface origin of streamflow could explain its decrease over the same period.",

keywords = "Energy fluxes, Groundwater, Runoff, Sahel, Sudanian climate, Water resources",

author = "L. S{\'e}guis and Nicolas Boulain and B. Cappelaere and Cohard, {Jean Martial} and Guillaume Favreau and Sylvie Galle and A. Guyot and P. Hiernaux and {\'E} Mougin and C. Peugeot and D. Ramier and Josiane Seghieri and F. Timouk and V. Demarez and J. Demarty and L. Descroix and M. Descloitres and M. Grippa and Francois Guichard and B. Kamagat{\'e} and L Kergoat and T Lebel and {Le Dantec}, V. and {Le Lay}, M. and Sylvain Massuel and V. Trichon",

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Séguis, L, Boulain, N, Cappelaere, B, Cohard, JM, Favreau, G, Galle, S, Guyot, A, Hiernaux, P, Mougin, É, Peugeot, C, Ramier, D, Seghieri, J, Timouk, F, Demarez, V, Demarty, J, Descroix, L, Descloitres, M, Grippa, M, Guichard, F, Kamagaté, B, Kergoat, L, Lebel, T, Le Dantec, V, Le Lay, M, Massuel, S & Trichon, V 2011, 'Contrasted land-surface processes along the West African rainfall gradient', Atmospheric Science Letters, vol. 12, no. 1, pp. 31-37. https://doi.org/10.1002/asl.327

Contrasted land-surface processes along the West African rainfall gradient. / Séguis, L.; Boulain, Nicolas; Cappelaere, B.; Cohard, Jean Martial; Favreau, Guillaume; Galle, Sylvie; Guyot, A.; Hiernaux, P.; Mougin, É; Peugeot, C.; Ramier, D.; Seghieri, Josiane; Timouk, F.; Demarez, V.; Demarty, J.; Descroix, L.; Descloitres, M.; Grippa, M.; Guichard, Francois; Kamagaté, B.; Kergoat, L; Lebel, T; Le Dantec, V.; Le Lay, M.; Massuel, Sylvain; Trichon, V.

In: Atmospheric Science Letters, Vol. 12, No. 1, 01.2011, p. 31-37.

Research output: Contribution to journal › Review Article › Research › peer-review

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T1 - Contrasted land-surface processes along the West African rainfall gradient

AU - Séguis, L.

AU - Boulain, Nicolas

AU - Cappelaere, B.

AU - Cohard, Jean Martial

AU - Favreau, Guillaume

AU - Galle, Sylvie

AU - Guyot, A.

AU - Hiernaux, P.

AU - Mougin, É

AU - Peugeot, C.

AU - Ramier, D.

AU - Seghieri, Josiane

AU - Timouk, F.

AU - Demarez, V.

AU - Demarty, J.

AU - Descroix, L.

AU - Descloitres, M.

AU - Grippa, M.

AU - Guichard, Francois

AU - Kamagaté, B.

AU - Kergoat, L

AU - Lebel, T

AU - Le Dantec, V.

AU - Le Lay, M.

AU - Massuel, Sylvain

AU - Trichon, V.

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N2 - We review the main results of land-surface studies obtained in the three sites of the long-term observing system AMMA-CATCH. Runoff in the Sahel enhances the variability of energy partitioning between non-infiltrative areas where sensible heat is dominant and infiltrative areas where soil water availability increases the latent flux. In terms of water resources, an increase in runoff over the past 50 years, already reported for the exoreic Sahel, was revealed in the endoreic Sahel. In the Sudanian domain, the subsurface origin of streamflow could explain its decrease over the same period.

AB - We review the main results of land-surface studies obtained in the three sites of the long-term observing system AMMA-CATCH. Runoff in the Sahel enhances the variability of energy partitioning between non-infiltrative areas where sensible heat is dominant and infiltrative areas where soil water availability increases the latent flux. In terms of water resources, an increase in runoff over the past 50 years, already reported for the exoreic Sahel, was revealed in the endoreic Sahel. In the Sudanian domain, the subsurface origin of streamflow could explain its decrease over the same period.

KW - Energy fluxes

KW - Groundwater

KW - Runoff

KW - Sahel

KW - Sudanian climate

KW - Water resources

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DO - 10.1002/asl.327

M3 - Review Article

AN - SCOPUS:79952033772

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JO - Atmospheric Science Letters

JF - Atmospheric Science Letters

SN - 1530-261X

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