The June–September Low Cloud Cover in Western Central Africa: Mean Spatial Distribution and Diurnal Evolution, and Associated Atmospheric Dynamics
作者： A. Dommo , N. Philippon , Derbetini A. Vondou , G. Sèze , R. Eastman
关键词:
摘要: AbstractWestern Central Africa (WCA) was recently shown to be one of the cloudiest areas tropics. Analyzing an ensemble satellite products and surface cloud observations, we show that in June-September, WCA cover is dominated by single-layered low stratiform clouds. Despite under-estimation frequency estimates at night, comparisons with observations bring insights into spatial distribution diurnal cycle Both appear strongly influenced orography: west, coastal plains ocean facing valleys have largest a lower amplitude maximum phased on 04 Local Time (LT). To east, across windward slopes, plateaus, downwind becomes progressively reduced has larger 10LT.In terms atmospheric dynamics, east/west gradient observed clouds amount related fo...
harvard.edu
sci-hub.se 参考文章(45)
Roderick van der Linden, Andreas H. Fink, Robert Redl, Satellite-based climatology of low-level continental clouds in southern West Africa during the summer monsoon season Journal of Geophysical Research. ,vol. 120, pp. 1186- 1201 ,(2015) , 10.1002/2014JD022614
Peter Knippertz, Andreas H. Fink, Robert Schuster, Jörg Trentmann, Jon M. Schrage, Charles Yorke, Ultra-low clouds over the southern West African monsoon region Geophysical Research Letters. ,vol. 38, ,(2011) , 10.1029/2011GL049278
Geneviève Sèze, Jacques Pelon, Marcel Derrien, Hervé Le Gléau, Bruno Six, Evaluation against CALIPSO lidar observations of the multi‐geostationary cloud cover and type dataset assembled in the framework of the Megha‐Tropiques mission Quarterly Journal of the Royal Meteorological Society. ,vol. 141, pp. 774- 797 ,(2015) , 10.1002/QJ.2392
Kerry H. Cook, Edward K. Vizy, The Congo Basin Walker circulation: dynamics and connections to precipitation Climate Dynamics. ,vol. 47, pp. 697- 717 ,(2016) , 10.1007/S00382-015-2864-Y
Arlene G. Laing, Richard Carbone, Vincenzo Levizzani, John Tuttle, The propagation and diurnal cycles of deep convection in northern tropical Africa Quarterly Journal of the Royal Meteorological Society. ,vol. 134, pp. 93- 109 ,(2008) , 10.1002/QJ.194
Craig J. Donlon, Matthew Martin, John Stark, Jonah Roberts-Jones, Emma Fiedler, Werenfrid Wimmer, The Operational Sea Surface Temperature and Sea Ice Analysis (OSTIA) system Remote Sensing of Environment. ,vol. 116, pp. 140- 158 ,(2012) , 10.1016/J.RSE.2010.10.017
Axel Lauer, Kevin Hamilton, Simulating Clouds with Global Climate Models: A Comparison of CMIP5 Results with CMIP3 and Satellite Data Journal of Climate. ,vol. 26, pp. 3823- 3845 ,(2013) , 10.1175/JCLI-D-12-00451.1
Derbetini A Vondou, Armand Nzeukou, André Lenouo, F Mkankam Kamga, None, Seasonal variations in the diurnal patterns of convection in Cameroon–Nigeria and their neighboring areas Atmospheric Science Letters. ,vol. 11, pp. 290- 300 ,(2010) , 10.1002/ASL.297
J. M. Schrage, S. Augustyn, A. H. Fink, Nocturnal stratiform cloudiness during the West African monsoon Meteorology and Atmospheric Physics. ,vol. 95, pp. 73- 86 ,(2007) , 10.1007/S00703-006-0194-7
G. García-Santos, M. V. Marzol, G. Aschan, Water dynamics in a laurel montane cloud forest in the Garajonay National Park (Canary Islands, Spain) Hydrology and Earth System Sciences. ,vol. 8, pp. 1065- 1075 ,(2004) , 10.5194/HESS-8-1065-2004