Ground hydrology and water resources for monsoon climates - WP3000

Partners involved: CEH (lead contractor), LMD

The aim of this work package is to develop methods of assessing the impact of natural and anthropogenic climate change on ground hydrology and water resources for monsoon -affected countries.

Some achievements so far:

• the Global Water Availability Assessment method (GWAVA) has been used to develop a sophisticated hydrological model for West Africa.

• data have been collated for testing this new hydrological model and a new high resolution soil classes data set has been obtained and its being adapted for the West African region

• a Global Land Surface Model has been developed to study the hydrological budget over India.

• a new river routing scheme has been developed and tested in India. Preliminary results show good agreement with observed monthly data

Publications on this topic arising from PROMISE

P. de Rosnay, J. Polcher, M. Bruen, K. Laval 2002 Impact of a physically based soil water flow ans soil plant interaction representation for modeling large scale land surface processes Journal of Geophys. Research D 107 1029

de Rosnay, P., J. Polcher,K. Laval 2003 A Modeling experiment on the interactions between irrigation and land surface fluxes over Indian Peninsula Geophysical Research Letters submitted

de Rosnay, P., J. Polcher,K. Laval, M. Sabre 2003 Modeling experiment of irrigation over Indian Peninsula with Orchidee. Gewex news.

Ducharne A., C. Golaz, E. Leblois, K. Laval J. Polcher, E. Ledoux and G. de Marsily 2003 RiTHM, a runoff routine scheme for GCMs Journal of Hydrology in press

Maynard, K. and Polcher J. 2002 Impact of land-surface processes on the interannual variability of tropical climate in the LMD GCM Climate Dynamics accepted

Meigh, J. and S. Folwell 2003 Combined impacts of climate and land use change on water resources vulnerability in West Africa In preparation

Verant S., K. Laval, J. Polcher and M. de Castro 2003 Sensitivity of the continental hydrological cycle to the spatial resolution over the Iberian Peninsula J. of Hydrometeorology in review

Publications on this topic by PROMISE partners

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 2(2-3), pp239-256

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

Meigh J.R., McKenzie A.A. and Sene K.J., (1999) A grid-based approach to water scarcity estimates for eastern and southern Africa. Water Resources Management, 13, 85-115.

Taylor CM, Harding RJ, Thorpe AJ, Bessemoulin P. 1997. A mesoscale simulation of land surface heterogeneity from HAPEX-Sahel. LJ.Hydrol. 189: 1040-1066.

Taylor CM, Saïd F, Lebel T. 1997. Interactions between the land surface and mesoscale rainfall variability during HAPEX-Sahel. Mon.Weath.Rev. 125: 2211-2227.

Taylor CM, Lebel T. 1998. Observational evidence of persistent convective-scale rainfall patterns. Mon.Weath.Rev. 126: 1597-1607.

Taylor CM. 2000. The influence of antecedent rainfall on Sahelian surface evaporation. Hydrol.Processes 14: 1245-1259.

Taylor, CM and Blyth, EM. 2000. Rainfall controls on evaporation at the regional scale: an example from the Sahel. Journal Of Geophysical Research-Atmospheres 105(D12), 15469-15480 .

Taylor, CM, Clark, DB, and Cox, PM. (in press)Land surface controls on West African rainfall in a GCM. International Workshop on West African Monsoon Variability and Predictability.

Further information

see:
Work package description in the proposal
First annual report (available to PROMISE partners or with the permission of the lead contractor)
Second annual report (available to PROMISE partners or with the permission of the lead contractor)
Third annual report (available to PROMISE partners or with the permission of the lead contractor)
Final report

or:

contact Emily Black (emily@met.reading.ac.uk)