Interactions between ocean basins affect El Niño–Southern Oscillation (ENSO), altering its impacts on society. Here, we explore the effect of Atlantic Multidecadal Variability (AMV) ENSO behavior using idealized experiments performed with NCAR-CESM1 model. Comparing warm (AMV+) to cold (AMV−) AMV conditions, find that sea surface temperature (SST) anomalies are reduced by ∼10% and precipitation...

Abstract The currents of gyre (circulation) flow play an important role in the transportation and mixing dissolved or suspended nutrients chemical substances. In recent years, climate change has affected field Lake Biwa. However, how much can influence not been clarified enough yet. present study, using a three-dimensional hydrodynamic model, we investigated effect changes air temperature, wind...

High resolution hydrographic observations of temperature and salinity are used to analyse the subsurface circulation along the coast of North Brazil, off the Amazon mouth, between 2 S and 6 N. Observations are presented from four cruises carried out in different periods of the year (March–May 1995, May–June 1999, July–August 2001 and October–November 1997). Numerical model outputs complement th...

In this study, the processes affecting sea surface temperature variability over the 1992–98 period, encompassing the very strong 1997–98 El Niño event, are analyzed. A tropical Pacific Ocean general circulation model, forced by a combination of weekly ERS1–2 and TAO wind stresses, and climatological heat and freshwater fluxes, is first validated against observations. The model reproduces the ma...

The tropical Atlantic Warm Pool is one of the main drivers marine intertropical convergence zone and associated coastal Northeast Brazilian West-African monsoons. Its meridional displacement driven by solar cycle, modulated atmosphere ocean interactions, whose nature respective proportions are still poorly understood. This paper presents a climatological study upper lower contributions to warm ...

The Norwegian Sea gyre (NSG) is a large body of Arctic intermediate water and deep dense overflow waters, which circulate counterclockwise within the Sea. Argo float trajectories presented in this study suggest that NSG attains its strongest most focused flow downstream confluence subarctic waters from Iceland Jan Mayen Ridge at steep bathymetry north Faroe slope. Based on hydrographic data mer...

A new transindian hydrographic section across 32 degrees S reveals that thermocline mode waters have become saltier and colder since 1987. This change almost entirely reverses the observed freshening of mode waters from the 1960s to 1987 that has been interpreted to be the result of anthropogenic climate change on the basis of coupled climate models. Here, we compare five hydrographic sections ...