We are also studying the more generic aspects of land/atmosphere interaction, particularly the interaction between natural vegetation changes and climate. Some are described in other areas under "earth system science". Interests include such areas as the impact rainfall variability on dust generation, impact of vegetation changes on surface properties such as albedo, and the impact of several decades of West African drought on vegetation.
		2000: Land Surface Processes and Sahel Climate. Reviews of Geophysics, 38, 117-139.  1998: Desertification, Drought and Surface Vegetation: An example from the West African Sahel (with C.J. Tucker and M.B. Ba). Bulliten of the American Meteorolgical Society, 79, 816-829. 1997: The Mean Surface Water Balance over Africa and its Interannual Variablility (with J. Kim, M.B. Ba, A.R. Lare). V10, 2981-3002. 1997: A Daily Resolution Evapoclimatonomy Model Applied to Surface Water Balance Calculations at the HAPEX-Sahel supersites (with J.A. Marengo, J. Kim, A.R. Lare, S. Galle, Y.H. Kerr). Journal of Hyrdology 188-189, 946-964. 1996: Application of Evapoclimatonomy to Monthly Surface Water Balance Calculations at the HAPEX-Sahel Supersites. (With J.A. Marengo, A.R. Lare, B.A. Monteny and S. Galle) Journal of Applied Meteorology, Vol 35, No. 4, April 1996 1996: A Revised Version of Lettau's Evapoclimatonly Model. (With J.A. Marengo, P. Santos) Journal of Applied Meteorology, Vol 35, No. 4, April 1996 1994: Contrasting Conditions of Surface Water Balance in Wet Years and Dry Years as a Possible Land Surface-Atmosphere Feedback Mechanism in the West African Sahel (with A.R. Lare). Journal of Climate, V7, 5, 654-668 1989: African Drought: Characteristics, Causal Theories and Global Teleconnections. Understanding Climate Change (A. Berger, R.E. Dickinson and J.W. Kidson, ed.), American Geophysical Union, Washington, D.C., 79-100. 1988: Land Surface Atmosphere Interaction: Physical processes and Surface Changes and their Impact. Progress in Physical Geography, 12, 1, 36-65.