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Fernando Lopes, Vincent Courtillot, Dominique Gibert and Jean-Louis Le Mouël
In this paper, the 1978?2022 series of northern (NHSI) and southern (SHSI) hemisphere sea ice extent are submitted to singular spectral analysis (SSA). The trends are quasi-linear, decreasing for NHSI (by 58,300 km2
2
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Olivia J. Truax, Bette L. Otto-Bliesner, Esther C. Brady, Craig L. Stevens, Gary S. Wilson and Christina R. Riesselman
Improved understanding of the drivers of climate variability, particularly over the last millennium, and its influence on Antarctic ice melt have important implications for projecting ice sheet resilience in a changing climate. Here, we investigated the ...
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Flávia Venturini Rosso, Nathalie Tissot Boiaski, Simone Erotildes Teleginski Ferraz and Tiago Capello Robles
The South Atlantic convergence zone (SACZ) is the main summer-typical atmospheric phenomenon occurring in South America, and it is of great interest because it regulates the rainy season in the most populated regions of Brazil. Frequency variability, per...
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W. Jackson Davis, Peter J. Taylor and W. Barton Davis
We report a previously-unexplored natural temperature cycle recorded in ice cores from Antarctica?the Antarctic Centennial Oscillation (ACO)?that has oscillated for at least the last 226 millennia. Here we document the properties of the ACO and provide a...
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Shangfeng Chen, Bin Yu, Wen Chen and Renguang Wu
The El Niño–Southern Oscillation (ENSO) is the strongest interannual air–sea coupled variability mode in the tropics, and substantially impacts the global weather and climate. Hence, it is important to improve our understanding of the ...
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Maikon Passos A. Alves, Rafael Brito Silveira, Rosandro Boligon Minuzzi and Alberto Elvino Franke
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J. M. QUINTANA,P. ACEITUNO
The evolution of annual rainfall along the west coast of South America from 30 to 43º S (central Chile) is analyzed for the period 1900-2007. A prevailing negative trend in annual rainfall has been documented for this region in several previous studies. ...
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