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The Relationship between California Rainfall and ENSO Events
Publisher: American Meteorological Society
Abstract: This paper examines the annual rainfall over California during 11 ENSO events within the period 1950 to 1982. During six of these, unusually wet conditions prevailed throughout California; conditions were near normal during ...
An Analysis of Recent Rainfall Conditions in West Africa, Including the Rainy Seasons of the 1997 El Niño and the 1998 La Niña Years
Publisher: American Meteorological Society
Abstract: This article examines recent rainfall conditions throughout the Sahel and in other parts of West Africa in detail and presents an overview of changes in rainfall on timescales of decades for Africa as a whole. In West ...
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
Publisher: American Meteorological Society
Abstract: The climate of West Africa, in particular the Sahel, is characterized by multiyear persistence of anomalously wet or dry conditions. Its Southern Hemisphere counterpart, the Kalahari, lacks the persistence that is evident ...
Wave Activity on the Tropical Easterly Jet
Publisher: American Meteorological Society
Abstract: This article examines the question of the existence of waves on the tropical easterly jet (TEJ) over West Africa. The TEJ is a well-known feature of the Asian monsoon and waves on the jet have been implicated in various ...
Rainfall in the Sahel during 1994
Publisher: American Meteorological Society
Abstract: This paper evaluates the rainfall conditions of 1994 in the West African Sahel. This analysis confirms that the year was relatively wet in the Sahel. The strongest positive anomalies occurred in the central Sahel and during ...
The Diurnal and Seasonal Cycles of Wind-Borne Dust over Africa North of the Equator
Publisher: American Meteorological Society
Abstract: This article presents a study of the diurnal and seasonal cycles of dust over North Africa, using surface visibility as an indicator of dust. The diurnal cycle shows a reduction of visibility during the daytime hours in ...
Validation of Satellite Precipitation Estimates over the Congo Basin
Publisher: American Meteorological Society
Abstract: AbstractThis paper evaluates nine satellite rainfall products and the Global Precipitation Centre Climatology (GPCC) gauge dataset over the Congo basin. For the evaluation the reference dataset is a newly created, gridded ...
Desertification, Drought, and Surface Vegetation: An Example from the West African Sahel
Publisher: American Meteorological Society
Abstract: Many assumptions have been made about the nature and character of desertification in West Africa. This paper examines the history of this issue, reviews the current state of our knowledge concerning the meteorological ...
An Analysis of West African Dynamics Using a Linearized GCM
Publisher: American Meteorological Society
Abstract: This study utilizes a linear, primitive equation spherical model to study the development and propagation of easterly wave disturbances over West Africa. Perturbations are started from an initial disturbance consisting of ...