The growth rate of sea ice in the Arctic this past month was the lowest for January going back to the start of the satellite record in 1979, according to the National Snow and Ice Data Center. The slow growth likely stemmed from winds from the south and west that compressed the sea ice in the Barents Sea, and above-average

How did December rank in terms of satellite measured temperature anomalies for the globe? According to Remote Sensing Systems (RSS), the global average temperature anomaly for the lower troposphere was +0.114 celsius or .205 F. November 2011 came in at +0.032 celsius. The RSS image below shows the lower tropospheric temperature anomalies for most of the globe for December 2011.

The annual Arctic sea ice extent minimum for 2011 was confirmed to be the second lowest on record behind 2007. The minimum this year occurred on September 9th. Since September 9th there has been a steady recovery in sea ice extent in the Arctic due to colder weather and changing wind. Melt season in 2011 brought higher-than-average summer temperatures, but

August 2011 was the sixth warmest August on record globally for the lower troposphere, according to Remote Sensing Systems, as measured by microwave sounding data from satellites. The satellite measured records go back to 1979. Globally, August 2011 was +.291 celsius above normal over land/sea combined, according to RSS. In the continental U.S., the average temperature for the month of

Calculating the volume of Arctic Sea Ice last year based on the combination of sea ice area and thickness, researchers from the University of Washington have estimated that Arctic Sea ice volume actually reached a record minimum at the end of the melt season in 2010, breaking the previous record only set back in 2007. The authors developed a model

Another month, another record low sea ice extent record falls………. The average Arctic sea ice extent for July 2011 ended up being the lowest on record, going back to 1979 when satellite records began, according to the National Snow and Ice Data Center. Image courtesy of the NSIDC. The record was achieved even while the decline of sea ice extent
