Physics
Scientific paper
Sep 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003georl..30rcry4c&link_type=abstract
Geophysical Research Letters, Volume 30, Issue 18, pp. CRY 4-1, CiteID 1970, DOI 10.1029/2003GL018031
Physics
57
Oceanography: General: Arctic And Antarctic Oceanography, Oceanography: General: Remote Sensing And Electromagnetic Processes (0689), Oceanography: General: Diurnal, Seasonal, And Annual Cycles
Scientific paper
A 30-year satellite record of sea ice extents derived mostly from satellite microwave radiometer observations reveals that the Arctic sea ice extent decreased by 0.30 +/- 0.03 × 106 km2/10 yr from 1972 through 2002, but by 0.36 +/- 0.05 × 106km2/10yr from 1979 through 2002, indicating an acceleration of 20% in the rate of decrease. In contrast, the Antarctic sea ice extent decreased dramatically over the period 1973-1977, then gradually increased. Over the full 30-year period, the Antarctic ice extent decreased by 0.15 +/- 0.08 × 106 km2/10 yr. The trend reversal is attributed to a large positive anomaly in Antarctic sea ice extent in the early 1970's, an anomaly that apparently began in the late 1960's, as observed in early visible and infrared satellite images.
Cavalieri Donald J.
Parkinson Claire L.
Vinnikov Konstantin Y.
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