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Antarctic Heating and Cooling Trends
Antarctica has been showing some interesting heating and cooling trends over the past 20+ years. Even though the interior of Antarctica is generally cooling, the coastlines (particularly in the western hemisphere) seem to be warming. This data is skin-depth temperatures derived from the thermal IR channel of historical AVHRR data.

Please note, these are preliminary findings and there are errors associated with these trends. Scientists are currently working on ways of minimizing these errors to more precisely determine these trends.


Image depicting the heating and cooling trends over and around Antarctica. Blue indicates cooling trends and red indicates warming trends.    Image depicting the heating and cooling trends over and around Antarctica. Blue indicates cooling trends and red indicates warming trends.

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  160 x 80           PNG       26 KB
  80 x 40             PNG         7 KB


TV (NTSC) resolution image depicting the heating and cooling trends over and around Antarctica.    TV (NTSC) resolution image depicting the heating and cooling trends over and around Antarctica.

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Color bar for temperature trends 		   Color bar for temperature trends

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Animation Number:3188
Completed:2005-06-28
Animator:Alex Kekesi (GST) (Lead)
Scientist:Josefino Comiso (NASA/GSFC)
Platforms/Sensors/Data Sets:NOAA-11/AVHRR
 NOAA-12/AVHRR
 NOAA-14/AVHRR
 NOAA-16/AVHRR
 NOAA-7/AVHRR
 NOAA-8/AVHRR
 NOAA-9/AVHRR
Data Collected:1982 - 2003
Keywords:
GCMD >> EARTH SCIENCE >> Cryosphere >> Sea Ice >> Heat Flux
More Information on this topic available at:
http://www.nasa.gov/vision/earth/environment/sealevel_feature.html
This work has been visible on
http://www.washingtonpost.com/wp-dyn/content/article/2005/07/07/AR2005070702029.html
Science paper:Comiso, J. C., Variability and trends in the Antarctic surface temperatures from in situ and satellite infrared measurements, J. Climate, 13(10), 1674-1696, 2000; Kwok, R, and J.C. Comiso, Spatial patterns of variability in Antarctic surface temperature: Connections to the Southern Hemisphere Annular Mode and the Southern Oscillation, Geophys. Res. Lett., 29(14), 10.1029/2002GL015415, 2002; Schneider, D.P., E.J. Steig, and J.C. Comiso, Recent Climate variability in Antarctica from Satellite-derived temperature data, J. Climate, 17, 1569-1583, 2004; King, J.C. and J.C. Comiso, The spatial coherence of interannual temperature variations in the Antarctic Peninsula, Geophys. Res. Lett., 30, 1040, doi:10.129/2002GL015580, 2003.
 
 
Please give credit for this item to:
NASA/Goddard Space Flight Center Scientific Visualization Studio.
Data provided by Larry Stock


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