Control of Mode and Intermediate Water Mass Properties in Drake Passage by the Amundsen Sea Low [PDF]
The evolution of the physical properties of Subantarctic Mode Water (SAMW) and Antarctic Intermediate Water (AAIW) in the Drake Passage region is examined on time scales down to intraseasonal, within the 1969–2009 period.
Naveira Garabato, Alberto C. +9 more
core +1 more source
Exploring winter rainfall in western South Africa : connections, influences and the potential for statistical seasonal forecasting [PDF]
Includes abstract.Includes bibliographical references (leaves 151-155).The development and underlying physical connections of relationships between SWC rainfall and the Southern Annular Mode (SAM), South Atlantic sea surface temperature (SST), Antarctic ...
Wolding, Brandon
core +1 more source
ACCESS-CM2-Chem: evaluation of southern hemisphere ozone and its effect on the Southern Annular Mode [PDF]
Chemistry–climate models are important tools for forecasting the evolution of climate. Of particular importance is the simulation of Antarctic ozone depletion due to its effect on the Southern Annular Mode (SAM).
Matthew T. Woodhouse, Fraser Dennison
doaj
Comparing Trends in the Southern Annular Mode and Surface Westerly Jet [PDF]
Abstract This paper examines trends in the southern annular mode (SAM) and the strength, position, and width of the Southern Hemisphere surface westerly wind jet in observations, reanalyses, and models from phase 5 of the Coupled Model Intercomparison Project (CMIP5).
Swart, Neil C. +3 more
openaire +2 more sources
Upper tropospheric water vapour variability at high latitudes – Part 1: Influence of the annular modes [PDF]
Seasonal and monthly zonal medians of water vapour in the upper troposphere and lower stratosphere (UTLS) are calculated for both Atmospheric Chemistry Experiment (ACE) instruments for the northern and southern high-latitude regions (60–90° N ...
C. E. Sioris +8 more
doaj +1 more source
Response of the Southern Ocean overturning circulation to extreme Southern Annular Mode conditions
The positive trend of the Southern Annular Mode (SAM) will impact the Southern Ocean’s role in Earth’s climate, however the details of the Southern Ocean’s response remain uncertain. We introduce a methodology to examine the influence of SAM on the Southern Ocean, and apply this method to a global ocean–sea-ice model run at three resolutions (1$^{\circ}
K. D. Stewart +3 more
openaire +1 more source
The rainy season of north-Northeastern Brazil (NE), one of the tropical regions with the largest rainfall interannual variability, is associated with the Intertropical Convergence Zone (ITCZ) influence, which is located in the southermost position during
Iracema Fonseca Albuquerque Cavalcanti
doaj +1 more source
Nonstationary Impacts of the Southern Annular Mode on Southern Hemisphere Climate
Abstract The temporal stability of the southern annular mode (SAM) impacts on Southern Hemisphere climate during austral spring is analyzed. Results show changes in the typical hemispheric circulation pattern associated with SAM, particularly over South America and Australia, between the 1960s–70s and 1980s–90s. In the first decades, the
Carolina Vera, Gabriel Silvestri
openaire +1 more source
Global-scale changes to extreme ocean wave events due to anthropogenic warming
Extreme surface ocean waves are often primary drivers of coastal flooding and erosion over various time scales. Hence, understanding future changes in extreme wave events owing to global warming is of socio-economic and environmental significance ...
Joao Morim +11 more
doaj +1 more source
Is there a robust effect of anthropogenic aerosols on the Southern Annular Mode? [PDF]
Historical anthropogenic aerosol (AA) changes are found to have caused a statistically significant negative Southern Annular Mode (SAM) trend (associated with an equatorward jet shift) in 14 out of 35 individual CMIP5 ensemble members since 1860. However, this response is not robust.
H. Steptoe, L. J. Wilcox, E. J. Highwood
openaire +3 more sources

