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Posts Tagged ‘Antarctic sea ice extent’

Polar Regions Experience Smallest Sea Ice Extents for February

Posted by feww on March 18, 2017

TG-FEWW-CM

February 2017 Second Warmest on Record —NOAA

It was the 41st consecutive February and the 386th consecutive month with temperatures exceeding the 20th century average.

The combined average temperature over global land and ocean surfaces for February 2017 was 0.98°C (1.76°F) above the 20th century average of 12.1°C (53.9°F)—the second highest for February in the 138-year period of record, trailing behind the record set in 2016 (+1.20°C / +2.16°F) and ahead of 2015 by +0.10°C (+0.18°F).

February 2017 was the highest monthly temperature departure from average since April 2016 (+1.07°C / +1.93°F) and the seventh highest monthly temperature departure among all months (1646) on record. This was the 41st consecutive February and the 386th consecutive month with temperatures above the 20th century average. The February global land and ocean temperature has increased at an average rate of +0.07°C (+0.13°F) per decade since 1880; however, the average rate of increase is twice as great since 1980.

 

The average global temperature across land surfaces was 1.78°C (3.20°F) above the 20th century average of 3.2°C (37.8°F) and the second highest February global land temperature on record, trailing behind 2016 by 0.50°C (0.90°F) and ahead of 2015 by 0.09°C (0.16°F).

This was also the highest monthly temperature departure from average since April 2016 (+1.86°C / +3.35°F) and the seventh highest among all months on record.

For the oceans, the February globally-averaged sea surface temperature was 0.69°C (1.24°F) above the 20th century average of 15.9°C (60.6°F), the second highest for February on record, behind the record-breaking year 2016 (+0.80°C / +1.44°F) and surpassing 2015 by +0.08°C (+0.14°F). February 2017 was the highest monthly temperature departure from average since October 2016 (+0.72°C / +1.30°F) and the 22nd highest among all months on record.

The average global sea surface temperature for the year-to-date was also the second highest in the 137-year record, at 0.67°C (1.21°F) above average, behind 2016 by 0.16°C (0.29°F).

The December–February seasonal global land and ocean temperature was 0.89°C (1.60°F) above the 20th century average of 12.1°C (53.8°F)—the second highest temperature departure from average for December–February in the 1880–2017 record, behind 2015/2016 by 0.23°C (0.41°F).

This was the highest three-month temperature departure since July–September 2016 (+0.89°C / +1.60°F) and tied with May–July 2016, June–August 2016, and July–September 2016 as the tenth highest three-month temperature departure from average since 1880.

The global land and ocean temperature during the three-month period of December–February has increased at an average rate of +0.07°C (+0.13°F) per decade since 1880; however, the average rate of increase is twice as great since 1980.

The globally-averaged temperature across land surfaces for December–February was also the second highest on record for the season, at 1.52°C (2.74°F) above the 20th century average of 3.2°C (37.8°F), behind 2015/2016 by 0.39°C (0.70°F).

This was the highest three-month temperature departure from average since March–May 2016 (1.81°C / 3.26°F) and the eighth highest in the 138-year record.

Across the world’s oceans, the December–February average sea surface temperature was 0.66°C (1.19°F) above the 20th century average of 15.8°C (60.5°F)—the second highest for December–February on record, trailing 2015/2016 by 0.17°C (0.31°F).

NOAA National Centers for Environmental Information, State of the Climate: Global Analysis for February 2017, published online March 2017, retrieved on March 18, 2017 from http://www.ncdc.noaa.gov/sotc/global/201702.

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Earth’s Fever Continues: Warmest May on Record

Posted by feww on June 19, 2015

Year-to-date also record warm: Report

The globally averaged temperature over land and ocean surfaces for May 2015 was 15.67°C (60.17°F), the highest for the month since record keeping began in 1880. Globally averaged temperature for March–May and the year-to-date (January–May) were also record highs, according to the State of the Climate Report.

  • The combined average temperature across global land and ocean surfaces for May was 0.87°C (1.57°F) above the 20th century average of 14.8°C (58.6°F)—the highest for May in the 136-year period of record, topping the previous record set in 2014 by 0.08°C (0.14°F).
  • The globally-averaged sea surface temperature was 0.72°C (1.30°F) above the 20th century average of 16.3°C (61.3°F)—the highest ever recorded for the month, topping record set in 2014 by 0.07°C (0.13°F).
  • The average global temperature across land surfaces was 1.28°C (2.30°F) above the 20th century average of 11.1°C (52.0°F), tying with 2012 as the highest May temperature on record.
  • The average Arctic sea ice extent for May was about 1.89 million km² (730,000 square miles), or 5.5 percent below the 1981–2010 average, making it the third smallest May extent since records began in 1979.  [The smallest sea ice extent occurred in May 2004, when the cover shrank to about 1.82million km² (703,000 square miles,) said the report
  • Antarctic sea ice during May was about 1.3 million km² (500,000 square miles), or 12.1 percent above the 1981–2010 average. The May extent was the largest Antarctic sea ice extent on record, exceeding the previous record set in 2014 by about 52,000km² (20,000 square miles).

January – May 2015

  • The first five months of 2015 were the warmest such period on record across the world’s land and ocean surfaces, at 0.85°C (1.53°F) above the 20th century average, surpassing the previous record set in 2010 by 0.09°C (0.16°F).

NOAA National Centers for Environmental Information, State of the Climate: Global Analysis for May 2015, published online June 2015, retrieved on June 19, 2015 from http://www.ncdc.noaa.gov/sotc/global/201505.

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