oC compared with +0.49oC in January 1998 and +0.48ooC last month making January 2016 the second warmest January in the tropics - behind January 1998 which registered an anomaly of +1.1oC
The UAH result for January 2016 agrees with a different analysis of satellite data by the US firm Remote Sensing Systems (RSS). Both analyses rank the global anomaly for January as warmest in the satellite era and the anomaly in the tropics as being behind 1998. This result in the tropics could indicate that there is less energy in the ocean available to the atmosphere than in 1998 or that temperatures could peak later in the year.
Here is the text of a news release issued by the University of Alabama in Huntsville regarding temperature data for January 2016:
Global Temperature Report: January 2016
Global climate trend since Nov. 16, 1978: +0.12 C per decade
Global composite temp.: +0.54 C (about 0.98 degrees Fahrenheit) above 30-year average for January.
Northern Hemisphere: +0.70 C (about 1.25 degrees Fahrenheit) above 30-year average for January.
Southern Hemisphere: +0.39 C (about 0.70 degrees Fahrenheit) above 30-year average for January.
Tropics: +0.85 C (about 1.52 degrees Fahrenheit) above 30-year average for January.
Global Composite: +0.43 C above 30-year average
Northern Hemisphere: +0.53 C above 30-year average
Southern Hemisphere: +0.37 C above 30-year average
Tropics: +0.61 C above 30-year average
(All temperature anomalies are based on a 30-year average (1981-2010) for the month reported.)
Notes on data released Feb. 4, 2016:
The warmest Januaries in the satellite temperature record are:
How much warmer than seasonal norms
2016 0.54 C
1998 0.49 C
2010 0.48 C
2013 0.43 C
2007 0.41 C
2003 0.31 C
2005 0.27 C
2015 0.27 C
2002 0.21 C
2004 0.18 C
Warmest NH Januaries
2016 0.70 C
2010 0.55 C
2007 0.48 C
2003 0.41 C
1998 0.40 C
2015 0.39 C
2013 0.34 C
2002 0.31 C
2005 0.30 C
1995 0.23 C
Warmest SH Januaries
1998 0.58 C
2013 0.51 C
2010 0.41 C
2016 0.39 C
2007 0.33 C
2004 0.30 C
2005 0.24 C
2003 0.21 C
2006 0.20 C
2014 0.17 C
Warmest Januaries in the tropics
1998 1.13 C
2016 0.85 C
2010 0.60 C
2007 0.55 C
1983 0.51 C
2013 0.42 C
2003 0.42 C
2004 0.32 C
1988 0.32 C
2005 0.29 C
Compared to seasonal norms, the warmest average temperature anomaly on Earth in January was over north central Russia, near the small town of Volochanka. January temperatures there averaged 7.20 C (almost 13 degrees F) warmer than seasonal norms. Compared to seasonal norms, the coolest average temperature on Earth in January was over the northern Pacific Ocean, where the average January 2016 temperature was 2.78 C (just over 5 degrees F) cooler than normal.
The long-term climate trend ticked up over the rounding margin this month, so the global climate trend since December 1978 is now 0.12 C per decade.
In other news, the 6.0beta5 version of the satellite temperature record, which has been available online for public comment for about eight months, is now complete and should soon be submitted for peer review in the scientific literature. The newest version of the dataset provides a more consistent transition between earlier MSU Channel 2 data and the new AMSU Channel 5. The new code causes no change in the long-term global temperature trend.
The complete version 6 beta lower troposphere dataset is still available here:
Archived color maps of local temperature anomalies are available on-line at:
As part of an ongoing joint project between UAHuntsville, NOAA and NASA, Christy and Dr. Roy Spencer, an ESSC principal scientist, use data gathered by advanced microwave sounding units on NOAA and NASA satellites to get accurate temperature readings for almost all regions of the Earth. This includes remote desert, ocean and rain forest areas where reliable climate data are not otherwise available.
The satellite-based instruments measure the temperature of the atmosphere from the surface up to an altitude of about eight kilometers above sea level. Once the monthly temperature data are collected and processed, they are placed in a "public" computer file for immediate access by atmospheric scientists in the U.S. and abroad.
Neither Christy nor Spencer receives any research support or funding from oil, coal or industrial companies or organizations, or from any private or special interest groups. All of their climate research funding comes from federal and state grants or contracts.
End of UAH news release.
UAH news release.
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