#temperature anomalies

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Australia's Temperature Anomalies since 1910

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Temperature Anomalies by Country 1880-2017 

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A History of Global Warming, In Just 35 Seconds | Climate Central

The Futility of Temperature Expectations? What do you expect your weather to be like? For one thing, you expect the temperature to be close to average, given the time of year. Naturally, there will always be anomalies here and there, when the temperature deviates from what is considered standard, normal, or expected. But what happens when anomalies become… normal? You may need to go “Zen” on…

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Also the twitter tweet (x)

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Arctic Sea Ice At Record Low On April 9 2015

On April 9, 2015, Arctic sea ice extent was only 14.051 square km, a record low for the time of the year, as illustrated by the image below.

Temperature anomalies at the top end of the scale (20°C, or 36°F) are hitting the Arctic Ocean in many places, as illustrated by the forecast below, showing an overall anomaly of +3.19°C for the Arctic for April 11, 2015, despite low temperatures over Greenland.

The situation is very worrying, the more so since a huge amount of ocean heat is lining up to be carried into the Arctic Ocean by the Gulf Stream. On April 10, 2015, sea surface temperatures of 24.1°C were recorded off the North American coast (green circle), a +12.5°C anomaly, as the image below shows.

Malcolm Light comments: In this inverted blowup of the high temperature region you can see the expanded effect of methane hydrate detabilization along the Gakkel Ridge and the high temperatures caused by the onshore methane eruption vents (image below).

The situation is dire and calls for comprehensive and effective action, as discussed at the Climate Plan blog.

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On April 9, 2015, Arctic sea ice extent was only 14.051 square km, a record low for the time of the year. From the post ...

Posted by Sam Carana on Saturday, April 11, 2015

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Record Methane in Arctic early March 2013

The image below, produced by Dr. Leonid Yurganov, shows methane levels for the first ten days of March 2013.

Methane levels for this period are at record highs in the Barents and Norwegian Seas, i.e. the highest levels ever recorded by IASI, which is is short for Infrared Atmospheric Sounding Interferometer, a Fourier transform spectrometer on board the European EUMETSAT Metop satellite that has supplied data since 2007. The record levels are indicated on the image below at the top right, while the geographical location of the four domains distinguished in the image are illustrated on the image further below.

The image at the top of this post displays average methane levels for the period March 1 to 10, 2013, at 600 mb. On individual days and on specific locations, methane levels could be much higher, as illustrated by the NOAA image below showing methane levels reaching a high of 2237 ppb on March 6, 2013, at 742 mb. The empty image further below is added to help distinguish land contours.

The earlier post Dramatic increase in methane in the Arctic in January 2013 showed that high methane levels lined up closely with the contours of land and sea ice. The same is the case for the record levels of methane in early March, as illustrated by the animation below.

IASI methane levels March 1-10, 2013 against NSIDC sea ice concentration map March 12, 2013. Note: this is a 3.09 file that may take some time to fully load. 

Finally, two maps showing temperature anomalies. The NOAA image below shows Sea Surface Temperature anomalies of over 8 degrees Celsius on March 8, 2013.

Air temperatures are more volatile than sea temperatures, as the wind can quickly change the situation. The image below shows how, as the jet stream weakens in speed and becomes more wavier, large patches with over 20 degrees Celsius surface temperature anomalies can extend into the Arctic.

BTW, the above image also shows large temperature anomalies in Antarctica, which has also shown high levels of methane recently. This will be discussed in more detail in a post elsewhere soon.

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Temperature Anomalies from 1880 to Now

August 2016 was the warmest August in 136 years of modern record-keeping, according to a monthly analysis of global temperatures by scientists at NASA’s Goddard Institute for Space Studies (GISS).

Although the seasonal temperature cycle typically peaks in July, August 2016 wound up tied with July 2016 for the warmest month ever recorded. August 2016’s temperature was 0.16 degrees Celsius warmer than the previous warmest August (2014). The month also was 0.98 degrees Celsius warmer than the mean August temperature from 1951-1980.