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Posts Tagged ‘2015’

2015 Earth’s Warmest Year by Widest Margin on Record

Posted by feww on January 20, 2016

Warmest December makes 2015 warmest year on record: NOAA

The 2015 globally averaged temperature over land and ocean surfaces was the highest on record since 1880. The December combined global land and ocean average surface temperature was the highest on record for any month in the 136-year record, reported NOAA.

Global highlights: Calendar Year 2015

The 2015 average temperature across global land and ocean surfaces was 1.62°F (0.90°C) above the 20th century average.

  • It is the warmest among all 136 years in the 1880–2015 record.
    • Fourth time a global temperature record has been set this century.
    • Largest margin by which the annual global temperature record has been broken.
    • Ten months had record high temperatures for their respective months during the year.
    • The five highest monthly departures from average for any month on record all occurred during 2015.
  • During 2015, the globally-averaged land surface temperature was 2.39°F (1.33°C) above the 20th century average. This was the highest among all years in the 1880–2015 record, surpassing the previous record of 2007 by 0.45°F (0.25°C). This is the largest margin by which the annual global land temperature has been broken.
  • During 2015, the globally-averaged sea surface temperature was 1.33°F (0.74°C) above the 20th century average. This was the highest among all years in the 1880–2015 record, surpassing the previous record of last year by 0.20°F (0.11°C).
  • The 1901-2000 average combined land and ocean annual temperature is 13.9°C (56.9°F), the annually averaged land temperature for the same period is 8.5°C (47.3°F), and the long-term annually averaged sea surface temperature is 16.1°C (60.9°F).

Global highlights: December 2015

December average temperature across global land and ocean surfaces was 2.00°F (1.11°C) above the 20th century average of 12.2°C (54.0°F). This was the highest for December in the 1880–2015 record.

  • The globally-averaged land surface temperature was 3.40°F (1.89°C) above the 20th century average. This was the highest for December in the 1880–2015 record.
  • The globally-averaged sea surface temperature was 1.49°F (0.83°C) above the 20th century average, also the highest for December in the 1880–2015 record.

Sixteen Warmest Years (1880–2015)

All but one of the 16 warmest year on record (1998 tied with 2009 for the 6th warmest) have occurred this century.

Source:
NOAA National Centers for Environmental Information, State of the Climate: Global Analysis for Annual 2015, published online January 2016, retrieved on January 20, 2016 from http://www.ncdc.noaa.gov/sotc/global/201513.

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2015 Likely Warmest on Record, 2011-2015 Warmest Five Year Period: WMO

Posted by feww on November 25, 2015

Extreme Weather Triggered as Climate Change Breaches Symbolic Thresholds

2015 is on track to be the warmest year on record, according to the World Meteorological Organization (WMO).

The global average surface temperature in 2015 would likely reach “the symbolic and significant milestone” of 1°C above the pre-industrial era, said WMO.

Also, the last five years (2011-2015) have been the warmest five-year period on record, with many extreme weather events – especially heatwaves – influenced by climate change, according to a WMO five-year analysis.

Bad News for the Planet

The state of the global climate in 2015 will make history as for a number of reasons,” said WMO Secretary-General. “Levels of greenhouse gases in the atmosphere reached new highs and in the Northern hemisphere spring 2015 the three-month global average concentration of CO2 crossed the 400 parts per million barrier for the first time. 2015 is likely to be the hottest year on record, with ocean surface temperatures at the highest level since measurements began.  It is probable that the 1°C Celsius threshold will be crossed,” he said. “This is all bad news for the planet.”

Based on data from January to October, the global average surface temperature for 2015 so far was about 0.73 °C above the 1961-1990 average of 14.0°C and approximately 1°C above the pre-industrial 1880-1899 period, said WMO.

Ocean heat and sea level rise

The oceans have been absorbing more than 90% of the energy that has accumulated in the climate system from human emissions of greenhouse gases, resulting in higher temperatures and sea levels. In the first nine months of 2015, global ocean heat content through both the upper 700 meters and 2000 meters of the oceans reached record high levels. The latest estimates of global sea level indicate that the global average sea level in the first half of 2015 was the highest since satellite observations became available in 1993.

Significant warmth was recorded across large areas of the oceans. The Tropical Pacific was much warmer than average, exceeding 1°C over much of the central and eastern equatorial Pacific. The northeast Pacific, much of the Indian Ocean and areas in the north and south Atlantic were significantly warmer than average. Areas to the south of Greenland and in the far southwest Atlantic were significantly colder than average.


Ocean heat content down to a depth of 700m (top) and 2000m (bottom). Three-month (red), annual (black) and 5-year (blue) averages are shown. Source: NOAA/NCEI

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FIRE-EARTH Event Alert – JAN 2015 (III)

Posted by feww on January 9, 2015

CJ Members

Fire-Earth Event Alert: JAN15 (III)

Details of the next Event Alert, JAN 2015 (III), will be broadcast on FIRE-EARTH Channels Friday, 9 January 2015 at the following times:

  13:32, 14:32, 15:32, 16:32, 18:32, 20:32, 21:32 and 22:32UTC.

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FIRE-EARTH Event Alert – JAN15 (II)

Posted by feww on January 7, 2015

CJ Members

Fire-Earth Event Alert: JAN15 (II)

Details of the next Event Alert, JAN15 (II), will be broadcast on FIRE-EARTH Channels Wednesday, 7 January 2015 at the following times:

  14:32, 15:32, 16:32, 18:32, 20:32, 21:32 and 22:32UTC.

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