Special Issue "Tropical Atlantic Variability"
Deadline for manuscript submissions: closed (15 May 2020).
Interests: tropical Atlantic Variability modes; air-sea interactions
Interests: modelling and teleconnections
Tropical Atlantic variability (TAV) can be viewed as yearly fluctuations of the seasonal cycle of trade winds, sea surface temperature (SST), and rainfall, including air–sea interactions and teleconnections. Its study involves the understanding of the processes and interactions that can alter the climatology of this region, including its potential forcings and impacts.
The leading modes of tropical Atlantic variability can be comprised of SST anomalous structures with a zonal and meridional symmetry and named, respectively, Atlantic Niño (or equatorial mode) and the meridional mode.
TAV exerts a strong influence on regional and global climate variability, altering the zonal and meridional atmospheric circulation cells and triggering global atmospheric teleconnections. Regionally, TAV can impact West African and South American monsoons, but also equatorial and coastal upwelling regions. Among the most important global impacts of TAV is the inter-basin tropical teleconnection with ENSO and the Indian Ocean, but also extratropical impacts all around the world. Additionally, TAV can be altered by natural and anthropogenic forcings. In this way, global teleconnections associated with changes in the subtropical high-pressure systems are important in TAV. Some examples are the North Atlantic Oscillation and ENSO. Additionally, multidecadal variability associated with natural variability oceanic modes (AMV and IPO) can also exert an influence on TAV. At longer timescales, tropical Atlantic variability is also influenced by the Atlantic meridional overturning circulation (AMOC) and, in particular, by the North Brazil Current (NBC) which transports warm water from the South Atlantic to high latitudes in the North Atlantic. The Indian Ocean’s influence through the Agulhas leakage can also have an impact on the TAV.
In this Special Issue, papers related to TAV, including research dealing with seasonal cycle, air–sea interactions, forcings, and impacts are welcome.
Prof. Belen Rodriguez-Fonseca
Dr. Teresa Losada Doval
Dr. Irene Polo Sánchez
Manuscript Submission Information
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- tropical Atlantic variability
- Atlantic Niño
- meridional mode
- air–sea interactions