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  • Agustí-Panareda A, Vasiljevic D, Beljaars A, Bock O, Guichard F, Nuret M, Lafore JP, Mendez AG, Andersson E, Bechtold P, Fink A, Hersbach H, Ngamini JB, Parker D, Redelsperger JL, Tompkins A. 2009a. Radiosonde humidity bias correction over the West African region for the special AMMA reanalysis at ECMWF. Q. J. R. Meteorol. Soc. 135: 595617.
  • Agustí-Panareda A, Beljaars A, Ahlgrimm M, Balsamo G, Bock O, Forbes R, Ghelli A, Guichard F, Köhler M, Meynadier R, Morcrette JJ. 2009b. The ECMWF reanalysis for the AMMA observational campaign, ECMWF Technical Memorandum, No. 612. ECMWF: Reading, UK.
  • Agustí-Panareda A, Beljaars A, Cardinali C, Genkova I, Thorncroft C. 2010a. Impact of assimilating amma soundings on ECMWF analyses and forecasts. Weather and Forecasting 25: 11421160. (In Special Collection: West African Weather Prediction and Predictability).
  • Agustí-Panareda A, Balsamo G, Beljaars A. 2010b. Impact of improved soil moisture on the ECMWF precipitation forecast in West Africa. Geophys. Res. Lett In press.
  • Andersson E, Thépaut JN. 2008. ECMWF's 4D-Var data assimilation system—the genesis and ten years in operations. ECMWF Newsletter 115: 812.
  • Balsamo G, Viterbo P, Beljaars A, van den Hurk B, Hirschi M, Betts AK, Scipal K. 2009a. A revised hydrology for the ECMWF model: Verification from field site to terrestrial water storage and impact in the integrated forecast system. J. Hydrometeorol. 10: 623643.
  • Balsamo G, Viterbo P, van den Hurk B, Hirschi M, Betts A, Scipal K. 2009b. A revised hydrology for the ECMWF model: Verification from field site to terrestrial water storage and impact in the integrated forecast system. J. Hydrometeorol. 10: 623643.
  • Bauer P. 2009. 4D-Var assimilation of MERIS total column water-vapour retrievals over land. Q. J. R. Meteorol. Soc. 135: 18521862.
  • Bechtold P, Köhler M, Jung T, Leutbecher M, Rodwell M, Vitart F. 2008. Advances in simulating atmospheric variability with IFS cycle 32R3. ECMWF Newsletter 114: 2938.
  • Bock O, Bouin MN, Doerflinger E, Collard P, Masson F, Meynadier R, Nahmani S, Koité M, Balawan KGL, Didé F, Ouedraogo D, Pokperlaar S, Ngamini JB, Lafore J, Janicot S, Guichard F, Nuret M. 2008. The West African monsoon observed with ground-based GPS receivers during AMMA. J. Geophys. Res. 113: D21105. DOI:10.1029/2008JD010327.
  • Boone A, de Rosnay P, Beljaars A, Balsamo G, Chopin F, Decharme B, Delire C, Ducharme A, Gascoin S, Grippa M, Guichard F, Gusev Y, Harris PP, Jarlan L, Kergoat L, Mougin E, Nasonova O, Norgaard A, d'Orgeval T, Ottlé C, Poccard-Leclercq I, Polcher J, Sandholt I, Saux-Picart S, Taylor C, Xue Y. 2009. The AMMA Land Surface Model Intercomparison Project (ALMIP). Bull. Am. Meterol. Soc. 90: 18651880.
  • Bou Karam D, Flamant C, Knippertz P, Reitebuch O, Pelon J, Chong M, Dabas A. 2008. Dust emissions over the Sahel associated with the West African monsoon intertropical discontinuity region: A representative case study. Q. J. R. Meteorol. Soc. 134: 621634.
  • Bou Karam D, Flamant C, Tulet P, Chaboureau JP, Dabas A, Todd M. 2009. Estimate of Sahelian dust emissions in the intertropical discontinuity region of the West African monsoon. J. Geophys. Res. 114: D13106. DOI: 10.1029/2008JD011444.
  • Drusch M, Viterbo P. 2006. Assimilation of screen-level variables in ECMWF's integrated forecast system: A study on the impact on the forecast quality and analyzed soil moisture. Mon. Weather Rev. 135: 300314.
  • Drusch M, Scipal M, de Rosnay P, Balsamo G, Andersson E, Bougeault P, Viterbo P. 2008. Exploitation of satellite data in the surface analysis, Technical Report 576, ECMWF Technical Memorandum. ECMWF: Reading, UK.
  • Guichard F. 2009. ‘What can we learn from AMMA about physical processes and models?’ In Seminar on Parametrization of Subgrid Physical Processes, 1–4 September 2008. ECMWF: Reading, UK.
  • Guichard F, Kergoat L, Mougin E, Timouk F, Baup F, Hiernaux P, Lavenu F. 2009. Surface thermodynamics and radiative budget in the Sahelian gourma: seasonal and diurnal cycles. J. Hydrol. 375: 161177. DOI:10.1016/j.jhydrol.2008.09.007.
  • Haywood J, Francis P, Osborne S, Glew M, Loeb N, Highwood E, Tanré D, Myhre G, Formenti P, Hirst E. 2003. Radiative properties and direct radiative effect of Saharan dust measured by the C-130 aircraft during shade. J. Geophys. Res. 108: DOI:10.1029/2002JD002687.
  • Haywood J, Pelon J, Formenti P, Bharmal B, Brooks M, Capes G, Chazette P, Chou C, Christopher S, Coe H, Cuesta J, Drimian Y, Desboeufs K, Geed G, Harrison M, Heese B, Highwood E, Johnson B, Mallet M, Marticorena B, Marsham J, Milton S, Myhre G, Osborne S, Parker D, Rojot JL, Schulz M, Slingo A, Tanré D, Tulet P. 2008. Overview of the dust and biomass-burning experiment and African Monsoon Multidisciplinary Analysis Special Observing Period-0. J. Geophys. Res. 113: DOI:10.1029/2008JD010077.
  • Huffman G, Adler R, Bolvin D, Gu G, Nelkin E, Bowman K, Stocker E, Wolff D. 2007. The TRMM multi-satellite precipitation analysis: Quasi-global, multi-year, combined-sensor precipitation estimates at fine scale. J. Hydrometeorol. 8: 3355.
  • Karbou F, Gérard E, Rabier F. 2010a. Global 4D-Var assimilation and forecast experiments using AMSU observations over land:. Part I: Impact of various land surface emissivity parametrizations. Weather and Forecasting 25: 519. DOI:10.1175/2009WAF2222243.1.
  • Karbou F, Rabier F, Lafore J, Redelsperger J. 2010b. Global 4D-Var assimilation and forecast experiments using AMSU observations over land. Part II: Impact of assimilating surface sensitive channels on the African monsoon during AMMA. Weather and Forecasting 25: 2036. DOI:10.1175/2009WAF2222244.1.
  • Lavaysse C, Flamant C, Janicot S, Parker D, Lafore J, Sultand B, Pelon J. 2009. Seasonal evolution of the West African heat low. Clim. Dyn. 33: 313330.
  • Lebel T, Parker D, Flamant C, Bourlès B, Marticorena B, Mougin E, Peugeot C, Diedhiou A, Haywood J, Ngamini J, Polcher J, Redelsperger JL, Thorncroft CD. 2010. The AMMA field campaigns: Multiscale and multidisciplinary observations in the West African region. Q. J. R. Meteorol. Soc. 136S1 833. DOI: 10.1002/qj.486.
  • Mahfouf J, Viterbo P, Douville H, Beljaars A, Saarinen S. 2000. A revised land-surface analysis scheme in the integrated forecasting system. ECMWF Newsletter, Summer–Autumn.
  • Mallet M, Tulet P, D Ser C, Solmon F, Dubovik O, Pelon J, Pont V, Thouron O. 2009. Impact of dust aerosols on the radiative budget, surface heat fluxes, heating rate profiles and convective activity over West Africa during March 2006. Atmos. Chem. Phys. 9: 71437160.
  • Meynadier R, Bock O, Guichard F, Boone A, Roucou P, Redelsperger JL. 2010a. Investigation of the West African monsoon water cycle. Part I: A hybrid water budget dataset. J. Geophys. Res. DOI:10.1029/2010JD013917, in press.
  • Meynadier R, Bock O, Gervois S, Guichard F, Redelsperger JL, Agustí-Panareda A, Beljaars A. 2010b. The West African monsoon water cycle. Part II: Assessment of NWP models. J. Geophys. Res. doi:10.129/2010JD013919, in press.
  • Miller M, Slingo A. 2007. The ARM mobile facility and its first international deployment: Measuring radiative flux divergence in West Africa. Bull. Am. Meteorol. Soc. 88: 12291244. DOI:10.1175/BMAS-88-8-1229.
  • Milton S, Borrks M, Haywood J, Johnson B, Allan R, Slingo A, Grey W. 2008. Modeled and observed atmospheric radiation balance during the West African dry season: Role of mineral dust, biomass burning aerosol and surface albedo. J. Geophys. Res. 113: 124, D00C02, DOI:10.1029/2007JD009741.
  • Morcrette JJ, Barker H, Cole J, Iacono M, Pincus R. 2008. Impact of a new radiation package, MCRAD, in the ECMWF integrated forecasting system. Mon. Weather Rev. 136: 47734798.
  • Parker D, Burton R, Diongue-Niang A, Ellis R, Felton M, Taylor C, Thorncroft C, Bessemoulin P, Tompkins A. 2005. The diurnal cycle of the west African monsoon circulation. Q. J. R. Meteorol. Soc. 131: 28392860. DOI:10.1256/qj.04.52.
  • Parker DJ, Fink A, Janicot S, Ngamini JB, Douglas M, Afiesimama E, Agustí-Panareda A, Beljaars A, Dide F, Diedhiou A, Lebel T, Polcher J, Redelsperger JL, Thorncroft C, Wilson GA. 2008. The AMMA radiosonde programme and its implications for the future of atmospheric monitoring over Africa. Bull. Am. Meteorol. Soc. 89: 10151027.
  • Rabier F, Järvinen H, Klinker E, Mahfouf JF, Simmons A. 2000. The ECMWF operational implementation of four-dimensional variational assimilation. I: Experimental results with simplified physics. Q. J. R. Meteorol. Soc. 126: 11431170.
  • Ramier D, Boulain N, Cappelaere B, Timouk F, Rabanit M, Lloyd C, Boubkraoui S, Métayer F, Descroix L, Wawrzyniak V. 2009. Towards an understanding of coupled physical and biological processes in the cultivated Sahel—1. Energy and water. J. Hydrol. 375: 204216. DOI:10.1016/j.jhydrol.2008.12.002.
  • Redelsperger JL, Thorncroft CD, Diedhiou A, Lebel T, Parker DJ, Polcher J. 2006. African Monsoon Multidisciplinary Analysis. Bull. Am. Meteorol. Soc. 86: 17391746.
  • Stephens G, Vane D, Boain R, Mace G, Sassen K, Wang Z, Illingworth A, O’Connor E, Rossow W, Durden S, Miller S, Austin R, Benedetti A, Mitrescu C, Team TCS. 2002. The Cloudsat mission and the A-train. Bull. Am. Meteorol. Soc. 83: 17711790.
  • Tegen I, Hoorig P, Chin M, Fung I, Jacob D, Penner J. 1997. Contribution of different aerosol species to the global aerosol extinction optical thickness: Estimates from model results. J. Geophys. Res. 102: 895915.
  • Tiedtke M. 1993. Representation of clouds in large-scale models. Mon. Weather Rev. 121: 30403061.
  • Timouk F, Kergoat L, Mougin E, Lloyd C, Ceschia E, Cohard JM, de Rosnay P, Hiernaux P, Demarez V, Taylor C. 2009. Response of surface energy balance to water regime and vegetation development in a Sahelian landscape. J. Hydrol. 375: 178189. DOI:10.1016/j.jhydrol.2009.04.022.
  • Tompkins A, Cardinali C, Morcrette JJ, Rodwell M. 2005. Influence of aerosol climatology on forecasts of the African Easterly Jet. Geophys. Res. Lett. 32: 14. DOI:10.1029/2004GL022189.
  • Tompkins A, Gierens K, Rädel G. 2007. Ice supersaturation in the ECMWF integrated forecast system. Q. J. R. Meteorol. Soc. 133: 5363.
  • Turner D. 2008. Ground-based infrared retrievals of optical depth, effective radius, and composition of airborne mineral dust above the Sahel. J. Geophys. Res. 113: D00E03.