Mesoscale water cycle within the West African Monsoon
نویسندگان
چکیده
منابع مشابه
Impacts of the Tropical Pacific/Indian Oceans on the Seasonal Cycle of the West African Monsoon
The current consensus is that drought has developed in the Sahel during the second half of the twentieth century as a result of remote effects of oceanic anomalies amplified by local land–atmosphere interactions. This paper focuses on the impacts of oceanic anomalies upon West African climate and specifically aims to identify those from SST anomalies in the Pacific/Indian Oceans during spring a...
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A mesoscale climate model (MCM) is developed from the Pennsylvania State University/ National Center for Atmospheric Research (PSU/ NCAR) MM5 model to simulate the West African summer monsoon. Results from the MCM are compared to observations, a reanalysis, and GCM output to show that the MCM reasonably simulates the West African monsoon climate and its variability, and improves on many shortco...
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A detailed reconstruction of West African monsoon hydrology over the past 155,000 years suggests a close linkage to northern high-latitude climate oscillations. Ba/Ca ratio and oxygen isotope composition of planktonic foraminifera in a marine sediment core from the Gulf of Guinea, in the eastern equatorial Atlantic (EEA), reveal centennial-scale variations of riverine freshwater input that are ...
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Increasing greenhouse gases will change many aspects of the Earth’s climate, from its annual mean to the frequency of extremes such as heat waves and droughts[1]. Here we report that the current generation of climate models predicts a delay in the seasonal cycle of global rainfall and ocean temperature in response to increasing greenhouse gases, with important implications for the regional mons...
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The review is an attempt to specify particular features of the biological processes involved in the nitrogen cycle as they occur in the following categories of West African ecosystems : flooded rice .fields, rain-fed agroecosystems, and forests. In rice fields in Senegal the nitrogen input through blue-green algae was reported to be in the range -, of 1-30 kg ha-' yr-'. Figures for heterotrophi...
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ژورنال
عنوان ژورنال: Atmospheric Science Letters
سال: 2011
ISSN: 1530-261X
DOI: 10.1002/asl.309