Update on Remotely-Sensed Antarctic Sea Ice Extent Pezza, A.B.,
Rashid, H.A. and Simmonds, I. 2012. Climate links and recent
extremes in Antarctic sea ice, high-latitude cyclones, Southern
Annular Mode and ENSO. Climate Dynamics 38: 57-73. According to
Pezza et al. (2012) there has been a modest increasing trend in
sea ice extent (SIE) around Antarctica over the era of satellite
coverage, citing the studies of Watkins and Simmonds (2000),
Zwally et al. (2002), Parkinson (2004), Turner et al. (2007) and
Comiso and Nishio (2008). In a broader study of the climatic
link between the Southern Annular Mode and Southern Hemisphere
SIE, Pezza et al. derived a history of Antarctic SIE for the
period stretching from autumn 1979 to autumn 2008, based on
remotely-sensed Nimbus-7 SMMR and DMSP SSM/I passive microwave
data from the National Aeronautics and Space Administration’s
National Snow and Ice Data Center. In doing so the three
Australian scientists report that modest positive SIE trends
were observed during all sea