Second warmest January in past 35
Global climate trend since Nov. 16, 1978: +0.14 C per decade
January temperatures (preliminary)
Global composite temp.: +0.51 C (about 0.92 degrees Fahrenheit) above 30-year average for January.
Northern Hemisphere: +0.55 C (about 0.99 degrees Fahrenheit) above 30-year average for January.
Southern Hemisphere: +0.46 C (about 0.83 degrees Fahrenheit) above 30-year average for January.
Tropics: +0.38 C (about 0.68 degrees Fahrenheit) above 30-year average for January.
December temperatures (revised):
Global Composite: +0.21 C above 30-year average
Northern Hemisphere: +0.15 C above 30-year average
Southern Hemisphere: +0.26 C above 30-year average
Tropics: +0.14 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. 6, 2013:
Globally, January 2013 was the second warmest January among the past 35, with an annual global average temperature that was 0.51 C (about 0.92 degrees Fahrenheit) warmer than the 30-year baseline average, according to Dr. John Christy, a professor of atmospheric science and director of the Earth System Science Center at The University of Alabama in Huntsville. January 2010 was the warmest January, while January 1998 is now pushed to third warmest.
Compared to seasonal norms, over the past month the coldest area on the globe was east central Russia near the town of Nyagan, where temperatures for the month averaged as much as 2.51 C (about 4.5 degrees Fahrenheit) cooler than seasonal norms. Compared to seasonal norms, the “warmest” area on the globe in January was the Norwegian arctic archipelago of Svalbard, which is north of Norway and east of Greenland. Temperatures there averaged 4.1 C (about 7.4 degrees Fahrenheit) warmer than seasonal norms for January.
Archived color maps of local temperature anomalies are available on-line at:
The processed temperature data is available on-line at:
http://vortex.nsstc.uah.edu/data/msu/t2lt/uahncdc.lt
As part of an ongoing joint project between UAHuntsville, NOAA and NASA, John Christy, a professor of atmospheric science and director of the Earth System Science Center (ESSC) at The University of Alabama in Huntsville, 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 is collected and processed, it is 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.
— 30 —
If you look at the uah site you will note a’disconnect’ late last year. That disconnect is the sameas the month’s anamoly. It was predictable. You can’t like sat data just when it suits you
James Abbott
I guess its running late but just in case you are still out there
I take your point – I guess I have my own definition of “noise” which I take to mean any signal that lies over any potential global warming signal that cannot be related to global warming.
Any cyclic event that takes temps up but then straight down again on a 3.75 year cycle is not adding to any overall warming and I call “noise”
Cheers
I’ve found over time that this dataset (from NCEP and provided by Ryan Maue of weatherbell and contributor to WUWT) is reasonably accurate for short-term trends. The big drop in December shows up (for 3 weeks) and the big recovery in January (big drop moderates to the expected trend and then 1.5 weeks of well-above the trend expected).
The last two months have been semi-unusual in that there was enough of an up-down-up-down over enough of a time period that it affected the monthly numbers in unusual ways.
But I still think the overall trend will be down as we transition from a small short El Nino to a small short La Nina.
http://models.weatherbell.com/climate/cfsr_t2m_2012.png.
Water vapor numbers went way up in January along with the UAH/RSS atmosphere temps changes. Assuming this was a short-term unusual pattern, there should be a large drop in February. If not, well time to re-assess the situation again.
Is there any reason why January 2013 temperature anomalies are so symmetrical in North and South hemisphere? I haven’t done any extensive research but it looks like the hemispheres were somehow communicating. The only way I can think of is ENSO.
Manfred says
I don’t get your point
Henry says
so I will show it again
http://www.woodfortrees.org/plot/hadcrut4gl/from:2002/to:2014/plot/hadcrut4gl/from:2002/to:2014/trend/plot/hadcrut3vgl/from:2002/to:2014/plot/hadcrut3vgl/from:2002/to:2014/trend/plot/rss/from:2002/to:2014/plot/rss/from:2002/to:2014/trend/plot/gistemp/from:2002/to:2014/plot/gistemp/from:2002/to:2014/trend/plot/hadsst2gl/from:2002/to:2014/plot/hadsst2gl/from:2002/to:2014/trend/plot/uah/from:2002/to:2014/trend l
owest linear trend in this graph is the one from UAH
so pray do tell,
how can you reconciliate UAH with any other data set
never mind my own,
which shows much more cooling, still, generally, than any other data set