Oceanic forcing of the late 20th century Sahel drought

Geophysical Research Letters

Volumn 32, Issue 22, 2005, Pages 1-5

  Lu, Jian ^a   Delworth, Thomas L ^a  

^a NOAA EARTH SYSTEM RESEARCH LABORATORY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

ATMOSPHERIC TEMPERATURE; COMPUTER SIMULATION; DROUGHT; GLOBAL WARMING; GREENHOUSE EFFECT; PRECIPITATION (METEOROLOGY); RAIN; REGRESSION ANALYSIS; SEA ICE; TIME SERIES ANALYSIS;

ATMOSPHERIC GENERAL CIRCULATION MODEL; SEA SURFACE TEMPERATURE;

CLIMATOLOGY;

ATMOSPHERE-OCEAN COUPLING; CLIMATE FORCING; CLIMATE MODELING; DROUGHT;

AFRICA; SAHEL [SUB-SAHARAN AFRICA]; SUB-SAHARAN AFRICA;

EID: 30744470876     PISSN: 00948276     EISSN: None     Source Type: Journal    
DOI: 10.1029/2005GL023316     Document Type: Article

References (21)

1. Brooks, N. (2004), Drought in the African Sahel: Long term perspectives and future prospects, Tyndall Cent. Working Pap. 61, University of East Anglia, Norwich, U. K.
2. Charney, J. G. (1975), Dynamics of deserts and drought in the Sahel, Q. J. R. Meteorol. Soc., 101, 193-202.
3. Delworth, T. L., et al. (2005), GFDL's CM2 global coupled climate models-part 1: Formulation and simulation characteristics, J. Clim., in press.
4. Folland, C. K., T. N. Palmer, and D. E. Parker (1986), Sahel rainfall variability and worldwide sea temperature, 1901-85, Nature, 320, 602-606.
5. Fontaine, B., and S. Janicot (1992), Wind-field coherence and its variations over west Africa, J. Clim., 5, 512-524.
6. Giannini, A., R. Saravanan, and P. Chang (2003), Oceanic forcing of Sahel rainfall on interannual and to interdecadal time scales, Science, 302, 1027-1030.
7. Gill, A. E. (1980), Some simple solutions for heat-induced tropical circulation, Q. J. R. Meteorol. Soc., 106, 447-462.
8. Global Atmospheric Model Development Team (GAMDT), (2004), The new GFDL global atmospheric and land model AM2/LM2: Evaluation with prescribed SST simulations, J. Clint., 17, 4641-4673.
9. Grist, J. P., and S. E. Nicholson (2001), A study of dynamics factors influencing the rainfall variability in the west African Sahel, J. Clim., 14, 1337-1359.
10. Hastenrath, S. (1990), Decadal-scale changes of the circulation in the tropical Atlantic sector associated with Sahel drought, Int J. Climatol., 10, 459-472.
11. Hoerling, M. P., J. W. Hurrell, and J. Eischeid (2005), Impact of greenhouse warming on the West African summer monsoon, J. Clim., in press.
12. Hurrell, J. W., M. P. Hoerling, A. S. Phillips, and T. Xu (2004), Twentieth century North Atlantic climate change. Part I: Assessing determinism, Clim. Dyn., 23, 371-389.
13. Knutson, T. R., T. L. Delworth, K. W. Dixon, and R. J. Stouffer (1999), Model assessment of regional surface temperature trends (1949-1997), J. Geophys. Res., 104, 30,981-30,996.
14. Milly, P. C. D., and A. B. Shmakin (2002), Global modeling of land water and energy balances. Part I: The land dynamics (LaD) model, J. Hydrometeorol., 3, 283-299.
15. Palmer, T. N. (1986), Influence of the Atlantic, Pacific and Indian Oceans on Sahel rainfall, Nature, 320, 251-253.
16. Rowell, D. P., C. K. Folland, K. Maskell, and M. N. Ward (1995), Variability of summer rainfall over tropical north Africa (1906-92): Observations and modeling, Q. J. R. Meteorol. Soc., 121, 669-704.
17. Shinoda, M., and R. Kawamura (1994), Tropical rainbelt, circulation, and sea surface temperatures associated with the Sahelian rainfall trend, J. Meteorol. Soc. Jpn., 72, 341-357.
18. Thorncroft, C. D. (1995), An idealized study of African easterly waves. III: More realistic basic states, Q. J. R. Meteorol. Soc., 121, 1589-1614.
19. Thorncroft, C. D., and M. Blackburn (1999), Maintenance of the African easterly jet, Q. J R. Meteorol. Soc., 125, 763-786.
20. Ward, M. N. (1998), Diagnosis and short-lead time prediction of summer rainfall in tropical north Africa at interannual and interdecadal timescales, J. Clim., 11, 3167-3191.
21. Wyman, B. L. (1996), A step-mountain coordinate general circulation model: Description and validation of medium-range forecasts, Mon. Weather Rev., 124, 102-121.