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Trends in the Southern Annular Mode from Observations and Reanalyses

Trends in the Southern Annular Mode from Observations and Reanalyses,10.1175/1520-0442(2003)016<4134:TITSAM>2.0.CO;2,Journal of Climate,Gareth J. Mars

Trends in the Southern Annular Mode from Observations and Reanalyses   (Citations: 327)
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Journal: Journal of Climate - J CLIMATE , vol. 16, no. 24, 2003
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    • ...The trend is probably more exaggerated in JJA than DJF, since the biases in the NCEP reanalysis data are largest in winter (Marshall 2003)...
    • ...Bromwich et al. (2007) found that for 1979‐2001 the trend in SAM in reanalysis datasets was comparable to the Marshall (2003) station data trend, for both the SAM index and for rotated EOFs of MSLP...

    Simon GraingerCarstenet al. Modes of variability of Southern Hemisphere atmospheric circulation es...

    • ...The SAM index is retrieved from the British Antarctic Survey, where they use the methodology outlined by Marshall [2003]...

    Darren C. McKeeet al. Climate impact on interannual variability of Weddell Sea Bottom Water

    • ...The mean annual wave time series and number of large wave events per year have been compared to the SAM index, defined by Marshall (2003)...

    Cyprien Bosserelleet al. Inter-annual variability and longer-term changes in the wave climate o...

    • ...The SAM index is here computed as the anomalous (relative to 2001–2010) zonal mean SLP difference between 40° S and 65° S [Marshall, 2003]...

    Lorenzo M. Polvaniet al. Large cancellation, due to ozone recovery, of future Southern Hemisphe...

    • ...(e) The standardized30 hPa Quasi Biennial Oscillation (m/s negative eastward) and (f) the Southern Annular Mode Index (hPa) calculated from zonal mean sea level pressure from 12 stations between 45°S and 65°S [Marshall, 2003]...
    • ...The monthly SAM index, plotted in Figure 8f is calculated from zonal mean sea level pressures (MSLP) from 12 stations and is the difference between the normalized monthly MSLP at 45°S and 65°S (data available at http://www.nerc‐bas.ac.uk/icd/ gjma/sam.html [Marshall, 2003])...
    • ...In the positive phase of the SAM, pressures over Antarctica are relatively low compared to those in the midlatitudes and enhanced Southern Ocean westerlies occur, intensifying the circumpolar vortex [Marshall, 2003]...
    • ...A general increase in the SAM index beginning in the 1960s has been reported by Marshall [2003] and linked to stratospheric ozone depletion and Antarctic surface temperature trends [e.g., Thompson and Solomon, 2002]...

    W. John R. Frenchet al. Long-term trends in Antarctic winter hydroxyl temperatures

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