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Arctic sea ice sets new record low for May

From NSIDC: Daily Arctic sea ice extents for May 2016 tracked two to four weeks ahead of levels seen in 2012, which had the lowest September extent in the satellite record. Current sea ice extent numbers are tentative due to the preliminary nature of the DMSP F-18 satellite data, but are supported by other data…

NSIDC-arctic-may16-2016

NSIDC resumes sea ice plots with provisional data

Daily sea ice extent updates resume with provisional data NSIDC has obtained data from the DMSP F-18 satellite and is in the process of intercalibrating the F-18 data with F-17 data. Intercalibration addresses differences between the series of sensors, in order to provide a long-term, consistent sea ice record. While this work continues, we are…

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Global Sea Ice Makes A Strong Comeback

By Paul Dorian, Vencore Weather Overview El Nino strengthened significantly during 2015 and peaked in December as one of the strongest such episodes in the past fifty years.  Even though El Nino is a phenomenon characterized by unusually warm water in the equatorial Pacific Ocean, it can have ramifications around the world.  In fact, global…

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The Awful Terrible Horrible Global Sea Ice Crisis

Guest Post by Willis Eschenbach My examination of objects cryospherical continues. In my last post, The Size of Icy Reflections, I showed that a change of 10% in the global sea ice area translates into a global average of a 0.1 watt per square metre (W/m2) change in reflected sunlight. In this post, I’ll look at what…

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The Size of Icy Reflections

Guest Post by Willis Eschenbach In my continuing wanderings through the regions cryospherical, I find more side roads than main highways. In my last two posts here and here, I discussed the curious inverse relationship between temperature and ice accumulation rates in Greenland and Antarctica. Wanting to understand the changes in the polar oceans that occur when…