Trends and variability in the Southern Annular Mode over the Common Era [PDF]
Nature Communications, 2023 The Southern Annular Mode (SAM) is the leading mode of atmospheric variability in the extratropical Southern Hemisphere and has wide ranging effects on ecosystems and societies.
Jonathan King +4 more
doaj +7 more sources
Role of the Southern Annular Mode in the sea level over the southern Blue Amazon [PDF]
Anais da Academia Brasileira de CiênciasRegional sea level rise varies from the global average and is influenced by climate variability. We studied sea level anomalies in southern Brazil from 1993 to 2022, finding increasing trend from 1993 to 2022.
VENISSE SCHOSSLER +8 more
doaj +5 more sources
Seasonally different carbon flux changes in the Southern Ocean in response to the southern annular mode [PDF]
Global Biogeochemical Cycles, 2013 Stratospheric ozone depletion and emission of greenhouse gases lead to a trend of the southern annular mode (SAM) toward its high‐index polarity. The positive phase of the SAM is characterized by stronger than usual westerly winds that induce changes in the physical carbon transport.
Mario Hoppema +2 more
exaly +5 more sources
Regional climate impacts of the Southern Annular Mode
Geophysical Research Letters, 2006 Previous work on the influence of the Southern Annular Mode (SAM) on surface climate has focused mainly on individual countries. In this study we use station observations of temperature and rainfall to identify the influence of the SAM on land regions over the whole of the Southern Hemisphere.
Gillett, N. P. +2 more
exaly +4 more sources
The Southern Annular Mode: a comparison of indices [PDF]
Hydrology and Earth System Sciences, 2012 The Southern Annular Mode (SAM) has been identified as a climate mechanism with potentially significant impacts on the Australian hydroclimate. However, despite the identification of relationships between SAM and Australia's hydroclimate using certain ...
M. Ho, A. S. Kiem, D. C. Verdon-Kidd
doaj +4 more sources
The key role of the Southern Annular Mode during the sea-ice maximum for Antarctic sea ice and its recent loss [PDF]
Communications Earth & EnvironmentAntarctic sea ice exhibits considerable interannual variability and has experienced unprecedented decline over the past decade. Here we provide observational insights into the role of the Southern Annular Mode in driving such variations in Antarctic sea ...
Chloe L. Boehm +2 more
doaj +2 more sources
Natural cycles in South Pacific Gyre strength and the Southern Annular Mode [PDF]
Scientific Reports, 2022 The South Pacific Gyre (SPG) plays a vital role in regulating Southern Hemisphere climate and ecosystems. The SPG has been intensifying since the twentieth century due to changes in large scale wind forcing.
Nicholas T. Hitt +7 more
doaj +2 more sources
Southern Annular Mode drives multicentury wildfire activity in southern South America. [PDF]
Proc Natl Acad Sci U S A, 2017 Significance Fire is a key ecological process affecting ecosystem dynamics and services, driven primarily by variations in fuel amount and condition, ignition patterns, and climate. In the Southern Hemisphere, current warming conditions are linked to the upward trend in the Southern Annular Mode (SAM) due to ozone depletion.
Holz A +10 more
europepmc +6 more sources
The Southern Annular Mode and Southern Ocean Surface Westerly Winds in E3SM [PDF]
Earth and Space Science, 2019 Climate variability and change in the Southern Hemisphere (SH) are influenced by the Southern Annular Mode (SAM) and are closely related to changes in the kinematic properties of the SH surface zonal winds.
Doo Young Lee +2 more
doaj +2 more sources
The impact of the Southern Annular Mode on future changes in Southern Hemisphere rainfall [PDF]
Geophysical Research Letters, 2016 AbstractA robust positive trend in the Southern Annular Mode (SAM) is projected for the end of the 21st century under the Representative Concentration Pathway 8.5 scenario, which results in rainfall decreases in the midlatitudes and increases in the high latitudes in the Southern Hemisphere (SH). We find that this SAM trend also increases rainfall over
Eun-Pa Lim +2 more
exaly +3 more sources