Richter-Menge, J. and Overland, J. and Svoboda, Michael and Box, Jason E. and Loonen, M.J.J.E. and Proshutinsky, A. and Romanovsky, V. and Russell, Don and Sawatzky, C.D. and Simpkins, M. and Amstrong, R. and Ashik, I. and Bai, L.-S. and Bromwich, D. and Cappelen, J. and Carmack, E. and Comiso, J. and Ebbinge, B. and Frolov, I. and Gascard, J. C. and Itoh, M. and Jia, G.J. and Krishfield, R. and McLaughlin, F. and Meier, W. and Mikkelsen, N. and Morison, J. and Mote, T. and Nghiem, S. and Perovich, D. and Polyakov, Igor V and Reist, J.D. and Rudels, B. and Schauer, U. and Shiklomanov, A. and Shimada, Koji and Sokolov, V. and Steele, Mike and Timmermanns, M.-L. and Toole, J. and Veenhuis, B. and Walker, D. and Walsh, J. and Wang, M. and Weidick, A. and Zöckler, Christoph
(2008)
Arctic Report Card 2008.
Project Report.
NOAA.
Abstract
Autumn temperatures are at a record 5º C above normal, due to the major loss of sea ice in recent
years which allows more solar heating of the ocean. Winter and springtime temperatures remain
relatively warm over the entire Arctic, in contrast to the 20th century and consistent with an
emerging global warming influence.
The year 2007 was the warmest on record for the Arctic, continuing a general, Arctic-wide warming
trend that began in the mid-1960s. The summers of 2005 through 2007 all ended with extensive areas of open water (see sea ice
section). This allowed extra heat to be absorbed by the ocean from solar radiation. As a result ice
freeze-up occurred later than usual in these years. Surface air temperature (SAT) remained high into the following autumns, with warm anomalies above an unprecedented +5° C during October and November across the central Arctic.
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