Home / People / LMD

LMD

Contents

People
Work packages
Reports written for PROMISE
Relevant publications

To top


People

Katia Laval (PI)
Serge Janicot
Maeva Sabre
Benjamin Sultan
Jan Polcher
Patricia de Rosnay
Frederic Hourdin

To top


Work packages

WP1000 Natural variability of monsoons
WP2000 Assessment of future monsoon climates in response to anthropogenic climate change
WP2100 Impact of land use changes on future monsoon climates
WP3000 Ground hydrology and water resources for monsoon climates

To top


Reports written for PROMISE

Modelling progress report
6 month report
Annual report for WP1000
Annual report for WP2000
Annual report for WP2100

Annual report for WP3000

18 month report

To top


Relevant publications

Janicot, S. Spatio-temporal variability of West African rainfall. Part I : Regionalizations and typings. Journal of Climate, 5, 489-497.

Janicot, S. Spatio-temporal variability of West African rainfall. Part II : Associated surface and air masses characteristics. Journal of Climate, 5, 499-511.

Fontaine, B. and Janicot, S Wind field coherence and its variations over West Africa. Journal of Climate, 5, 512-524.

Janicot, S. The West African monsoon of 1987 and 1988 : Pacific or Atlantic signal ? International Conference on Monsoon Variability and Prediction, Trieste, Italie, WCRP-84, WMO/TD-No 619, 765-772.

Janicot, S. The recent West African rainfall variability through empirical and modelling investigations. Global precipitations and climate change, NATO ASI Series, I, Vol.26, 135-150.

Fontaine, B. Janicot, S. and Moron, VRainfall anomaly patterns and wind field signals over West Africa in August (1958-1989). Journal of Climate, 8, 1503-1510.

Roucoup P. et al Vertical motion changes related to north-east Brazil rainfall variability : a AGCM simulation. Int. J. Climatology, 16, 879-891.

Fontaine, B. and Janicot, S. Near-global sea surface temperature variability associated with West African rainfall anomaly types. Journal of Climate, 9, 2935-2940.

Janicot S. Fontaine, B and Moron, V. ENSO dynamics and Sahel droughts Geophysical Research Letters, Vol.23, 5, 515-518.

Janicot S. ENSO Impact on atmospheric circulation and convection over the tropical Atlantic and West Africa. Annales Geophysicae, 15, 471-475.

Janicot S., Harzallah, A. Fontaine, B and Moron, V. West African monsoon dynamics and eastern equatorial Atlantic and Pacific SST anomalies (1970-1988). Journal of Climate, 11, 1874-1882.

Fontaine, B., Trzaska, S and Janicot, S. Evolution of the relationship between near global and Atlantic SST modes and the rainy season in West Africa: statistical analyses and sensitivity experiments. Climate Dynamics, 14, 353-368.

Diedhou A., Janicot, S. Viltard, A. De Fleece, P. and Laurent, H A fast eastern wave in West Africa troposphere Meteorology and Atmospheric Physics, 69, 39-47.

Diedhou A., Janicot, S. Viltard, A. and De Fleece P. Evidence of two regimes of easterly waves over West Africa and the tropical Atlantic Geophysical Research Letters, 25, 2805-2808.

Diedhou A., Janicot, S. Viltard, A. De Fleece, P. and Laurent, H Easterly wave regimes and associated convection over West Africa and the tropical Atlantic : Results from NCEP/NCAR and ECMWF reanalyses. Climate Dynamics, 15, 795-822

Fontaine, B. Janicot, S. Observed and modelled surface variability in the tropical Atlantic region and its rainfall impacts. Climate Dynamics, 15, 451-473.

Poccard, I., Janicot, S. and Camberlin, P. (2000) Comparison of rainfall structures between NCEP/NCAR reanalysis and observed data over tropical Africa. Climate Dynamics, 16, 897-915.

Diedhou A., Janicot, S. Viltard, A. De Fleece, P. and Laurent, H. Composite patterns and energetics of easterly wave disturbances over West Africa and the tropical Atlantic : Results from the 1979-1995 NCEP/NCAR reanalyses. Climate Dynamics, revised.

Janicot, S., Trzaska, S. and Poccard, I. Decadal scale variability of summer Sahel-ENSO teleconnection Climate Dynamics, revised.

Janicot S. and Sultan, B. (2000)Abrupt shift of the ITCZ over West Africa and intra-seasonal variability Geophysical Research Letters, 27, .3353-3356

Camberlin, P., Janicot S. and Poccard, I. Seasonality and atmospheric dynamics of the teleconnection between African rainfall and tropical ocean surface temperature : Atlantic versus ENSO International Journal of Climatology, accepted.

Polcher, J. (1994) Etude de la sensibilite du climat tropical a la deforestation. PhD Thesis, Universite Pierre et Marie Curie, Paris VI.

Polcher, J. and Laval, K. (1994a) The impact of African and Amazonian deforestation on tropical climate. Journal of Hydrology 155:389-405.

Polcher, J. and Laval, K. (1994b) A statistical study of the regional impact of deforestation on climate in the LMD-GCM. Climate Dynamics 10:205-219.

Le Roux, X., Polcher, J., Dedieu, G., Menaut, J. C., and Monteny, B. (1994) Radiation exchanges above west african moist savannas: seasonal patterns, and comparaison with a GCM simulation. J. Geophys. Res. 99(D12):25,857-25,868.

Mechoso, C.R., Robertson, A.W., Barth, N., Davey, M.K., Delecluse, P., Gent, P.R., Ineson, S., Kirtman, B., Latif, M., Le Treut, H., Nagai, T., Neelin, J.D., Philander, S.G.H., Polcher, J., Schopf, P.S., Stockdale, T., Suarez, M.J., Terry, L., Thual, O., Tribbia, J.J. (1995). The seasonal cycle over the tropical pacific in general circulation models. Monthly Weather Review 123(9):2825-2838.

Polcher, J. (1995) Sensitivity of tropical convection to land surface processes. Journal of the Atmospheric Sciences 52(17):3143-3161.

R.C. Raghava, K. Laval, R. Sadourny, J. Polcher (1995) On the atmospheric response to the tropical denuding of vegetation. Atmospheric Environment , 29, pp1963-2000

K. Laval and J. Polcher (1995) Sensitivity of the Indian Monsoon to Land-Surface Evaporationrate in the LMD-GCM. AMIP Scientific Conference, 15-19 May 1995, Monterey, California

Polcher J., Laval, K., Dumenil, L., Lean, J., Rowntree, P.R. (1996) Comparing three land surface schemes used in GCMs. Journal of Hydrology 180:373-394.

Polcher J. and Shao, Y. (1996) A Standard format for reporting PILPS experiments. Global and Planetary Change 13:217-223.

Peylin, P., Polcher J., Bonan, G., Williamson, D., Laval, K. (1996) Comparison of two complex Land-Surface Schemes coupled to the NCAR-GCM J. Geophys. Res. 102:19,413-19,431.

Chen, T.H. ... Polcher, J. ... Laval, K. ... (1996) Cabauw experimental results from the project for intercomparison of land-surface parameterization schemes (PILPS) Journal of Climate 10:1194-1215.

Laval, K., Raghava, R.C., Polcher, J., Sadourny, R., Forichon, M., (1996) Simulation of the 1987 and 1988 Indian Monsooons using the LMD GCM. Journal of Climate 9:3357-3371.

Henderson-Sellers, A., Polcher, J., Chen, T. H., Nakken, M., and Pitman, A. J., (1996) Predicting global change at the land-surface: the Project for Intercomparison of Land-Surface Parameterization Schemes (PILPS) (Phase 4). Seventh Symposium on Global Change Studies pp. 59-66, Boston, American Meteorological Society.

Polcher, Jan (1997) The sensitivity of the tropical climate to land surface processes. ECMWF Seminar 8 Sep. 1997 - 12 Sep. 1997

Laval,Katia (1997) Hydrological processes in GCMs. NATO ASI Series Vol 46. Edited by Sorooshian. Springer Verlag.

Schulz, J.-P., L. Dumenil, J. Polcher, C. A. Schlosser, Y. Xue, (1998) Land surface energy and moisture fluxes: comparing three models, J. Appl. Meteor. 37:288-307.

Ducharne, A. Laval, K. and Polcher, J. (1998) Sensitivity of the hydrological cycle to the parameterization of soil hydrology in a GCM. Climate Dynamics, 14, pp 307-327.

J.Polcher, B. McAvaney, P. Viterbo, M.-A. Gaertner, A. Hahmann, J.-F. Mahfouf, J. Noilhan, T. Phillips, A. Pitman, C.A. Schlosser, J.-P. Schulz, B. Timbal, D. Verseghy and Y. Xue. (1998) A proposal for a general interface between land-surface schemes and general circulation models. Global and Planetary Change, 19, pp 263-278.

Ciret, C., Polcher, J. and Le Roux, X. (1998) An approach to simulate the phenology of savanna ecosystems in the LMD general circulation model. Global Biogeochemical Cycles 13(2), pp603-622.

De Rosnay, P. and Polcher J. (1998) Modeling root water uptake in a complex land surface scheme coupled to a GCM. Hydrology and Earth System Sciences 13(2), pp603-622

J. Polcher, J. Crossley, C. Bunton, H. Douville, N. Gedney, K. Laval, S. Planton, P.R. Rowntree, and P. Valdes (1998) Importance of land-surface processes for the uncertainties of climate change; A European project. GEWEX-News, May.

M. Sabre, K. Hodges, K. Laval, J. Polcher and F. Desalmand (2000): Simulations of Monsoon disturbances in the LMD GCM. Monthly Weather Review, 128, 3752-3771

A. Ducharne and K. Laval (2000): Influence of the realistic description of soil-holding capacity on the global water cycle in a GCM. Journal of Climate, 13, 4393-4413


To top

List of PROMISE partners PROMISE brochure Information about the data archive Details of PROMISE research Contact details for futher information about PROMISE Search this site