Publication Abstracts

Stammerjohn et al. 2008

Stammerjohn, S.E., D.G. Martinson, R.C. Smith, X. Yuan, and D. Rind, 2008: Trends in Antarctic annual sea ice retreat and advance and their relation to El Niño-Southern Oscillation and Southern Annular Mode variability. J. Geophys. Res., 108, C03S90, doi:10.1029/2007JC004269.

Previous studies have shown strong contrasting trends in annual sea ice duration and in monthly sea ice concentration in two regions of the Southern Ocean: decreases in the western Antarctic Peninsula/southern Bellingshausen Sea (wAP/sBS) region and increases in the western Ross Sea (wRS) region. To better understand the evolution of these regional sea ice trends, we utilize the full temporal (quasi-daily) resolution of satellite-derived sea ice data to track spatially the annual ice edge advance and retreat from 1979 to 2004. These newly analyzed data reveal that sea ice is retreating 31±10 days earlier and advancing 54±9 days later in the wAP/sBS region (i.e., total change over 1979-2004), whereas in the wRS region, sea ice is retreating 29±6 days later and advancing 31±6 days earlier. Changes in the wAP/sBS and wRS regions, particularly as observed during sea ice advance, occurred in association with decadal changes in the mean state of the Southern Annular Mode (SAM; negative in the 1980s and positive in the 1990s) and the high-latitude response to El Niño-Southern Oscillation (ENSO). In general, the high-latitude ice-atmosphere response to ENSO was strongest when - SAM was coincident with El Niño and when +SAM was coincident with La Niña, particularly in the wAP/sBS region. In total, there were 7 of 11 -SAMs between 1980 and 1990 and the 7 of 10 +SAMs between 1991 and 2000 that were associated with consistent decadal sea ice changes in the wAP/sBS and wRS regions, respectively. Elsewhere, ENSO/SAM-related sea ice changes were not as consistent over time (e.g., western Weddell, Amundsen, and eastern Ross Sea region), or variability in general was high (e.g., central/eastern Weddell and along East Antarctica).

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BibTeX Citation

@article{st04710r,
  author={Stammerjohn, S. E. and Martinson, D. G. and Smith, R. C. and Yuan, X. and Rind, D.},
  title={Trends in Antarctic annual sea ice retreat and advance and their relation to El Niño-Southern Oscillation and Southern Annular Mode variability},
  year={2008},
  journal={J. Geophys. Res.},
  volume={108},
  pages={C03S90},
  doi={10.1029%2F2007JC004269},
}

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RIS Citation

TY  - JOUR
ID  - st04710r
AU  - Stammerjohn, S. E.
AU  - Martinson, D. G.
AU  - Smith, R. C.
AU  - Yuan, X.
AU  - Rind, D.
PY  - 2008
TI  - Trends in Antarctic annual sea ice retreat and advance and their relation to El Niño-Southern Oscillation and Southern Annular Mode variability
JA  - J. Geophys. Res.
VL  - 108
SP  - C03S90
DO  - 10.1029%2F2007JC004269
ER  -

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