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Winter 10-Day Coupled Patterns between Geopotential Height and Iberian Peninsula Rainfall Using the ECMWF Precipitation Reanalysis
Publisher: American Meteorological Society
Abstract: Ten-day winter anomalous precipitation variability in the Iberian Peninsula (IP), related to the North Atlantic atmospheric general circulation, is analyzed using 24-h forecast ECMWF precipitation data over 1979?96. The ...
Tropical Atlantic Variability Modes (1979–2002). Part II: Time-Evolving Atmospheric Circulation Related to SST-Forced Tropical Convection
Publisher: American Meteorological Society
Abstract: The ways in which deep convection over the tropical Atlantic affects the midlatitude climate variability through meridional circulation, planetary wave teleconnection, and wave?mean flow interaction is examined for the ...
Tropical Atlantic Variability Modes (1979–2002). Part I: Time-Evolving SST Modes Related to West African Rainfall
Publisher: American Meteorological Society
Abstract: This work presents a description of the 1979?2002 tropical Atlantic (TA) SST variability modes coupled to the anomalous West African (WA) rainfall during the monsoon season. The time-evolving SST patterns, with an impact ...
Extratropical Atmospheric Response to the Atlantic Niño Decaying Phase
Publisher: American Meteorological Society
Abstract: The Atlantic Niño or Atlantic Equatorial Mode (EM) is the dominant coupled variability phenomenon in the tropical Atlantic basin during boreal summer. From the 1970s, the mode has changed, evolving in time from east to ...
ENSO Influence on Western European Summer and Fall Temperatures
Publisher: American Meteorological Society
Observed Global Mean State Changes Modulating the Collective Influence of the Tropical Atlantic and Indian Oceans on ENSO
Publisher: American Meteorological Society
Relationships among Intermodel Spread and Biases in Tropical Atlantic Sea Surface Temperatures
Publisher: American Meteorological Society
Abstract: AbstractState-of-the-art general circulation models show important systematic errors in their simulation of sea surface temperatures (SST), especially in the tropical Atlantic. In this work the spread in the simulation of ...
Is There Evidence of Changes in Tropical Atlantic Variability Modes under AMO Phases in the Observational Record?
Publisher: American Meteorological Society
Abstract: AbstractThe Atlantic multidecadal oscillation (AMO) is the leading mode of Atlantic sea surface temperature (SST) variability at multidecadal time scales. Previous studies have shown that the AMO could modulate El Niño?Southern ...
Interdecadal Changes in the Leading Ocean Forcing of Sahelian Rainfall Interannual Variability: Atmospheric Dynamics and Role of Multidecadal SST Background
Publisher: American Meteorological Society
Abstract: AbstractThe atmospheric response to global sea surface temperatures is the leading cause of rainfall variability in the West African Sahel. On interannual periodicities, El Niño?Southern Oscillation, the Atlantic equatorial ...
Variability and Predictability of West African Droughts: A Review on the Role of Sea Surface Temperature Anomalies
Publisher: American Meteorological Society
Abstract: he Sahel experienced a severe drought during the 1970s and 1980s after wet periods in the 1950s and 1960s. Although rainfall partially recovered since the 1990s, the drought had devastating impacts on society. Most studies ...