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RISCase Studies of Extreme Climatic Events in the Amazon Basin
Publisher: American Meteorological Society
Abstract: The mechanisms of climate anomalies in the Amazon basin were explored from surface climatological and hydrological series, upper-air, and satellite observations. The paper is focused on the March?April rainy season peak ...
Interannual Variability of the Rainy Season and Rainfall in the Brazilian Amazon Basin
Publisher: American Meteorological Society
Abstract: Interannual variability of seasonal rainfall in the Brazilian Amazon basin is examined in context of its relationship to sea surface temperatures in the tropical Pacific and Atlantic Oceans. Linear correlations reveal ...
Climatology of the Low-Level Jet East of the Andes as Derived from the NCEP–NCAR Reanalyses: Characteristics and Temporal Variability
Publisher: American Meteorological Society
Abstract: A climatology of the South American low-level jet east of the Andes (SALLJ) is developed using the 1950? 2000 circulation and moisture fields from the NCEP?NCAR reanalyses and available upper-air observations made in Bolivia ...
Climatic Impacts of “Friagens” in Forested and Deforested Areas of the Amazon Basin
Publisher: American Meteorological Society
Abstract: Meteorological observations from the Anglo?Brazilian Amazonian Climate Observation Study (ABRACOS), together with the global reanalysis from the National Center for Environmental Prediction (NCEP) and satellite images, ...
A Comparison of Rainfall, Outgoing Longwave Radiation, and Divergence over the Amazon Basin
Publisher: American Meteorological Society
Abstract: Observed rainfall, outgoing longwave radiation (OLR), divergence, and precipitation from the reanalysis project of the National Centers for Environmental Prediction and the National Center for Atmospheric Research are ...
Submonthly Convective Variability over South America and the South Atlantic Convergence Zone
Publisher: American Meteorological Society
Abstract: Relationships between deep convection over South America and the atmospheric circulation are examined, with emphasis on submonthly variations of the South Atlantic convergence zone (SACZ) during austral summer. Outgoing ...
Application of Evapoclimatonomy to Monthly Surface Water Balance Calculations at the HAPEX-Sahel Supersites
Publisher: American Meteorological Society
Abstract: In this paper a revised verstion of Lettau's evapoclimatonomy model is used to simulate climate in West Africa. The model is applied specifically to the study sites of the HAPEX-Sahel region in Niger, an international ...
Onset and End of the Rainy Season in the Brazilian Amazon Basin
Publisher: American Meteorological Society
Abstract: Onset and end of the rainy season in the Amazon Basin are examined for the period 1979?96. The onset and end dates are determined by averaging daily rainfall data from many stations, and then constructing 5-day averages ...
Propagation of Strong Rainfall Events from Southeastern South America to the Central Andes
Publisher: American Meteorological Society
Abstract: ased on high-spatiotemporal-resolution data, the authors perform a climatological study of strong rainfall events propagating from southeastern South America to the eastern slopes of the central Andes during the monsoon ...
Two Contrasting Severe Seasonal Extremes in Tropical South America in 2012: Flood in Amazonia and Drought in Northeast Brazil
Publisher: American Meteorological Society
Abstract: wo simultaneous extreme events affected tropical South America to the east of the Andes during the austral summer and fall of 2012: a severe drought in Northeast Brazil and intense rainfall and floods in Amazonia, both ...