Global Temperature Report: July 2014
Global climate trend since Nov. 16, 1978: +0.14 C per decade
July temperatures (preliminary)
Global composite temp.: +0.31 C (about 0.56 degrees Fahrenheit) above 30-year average for July.
Northern Hemisphere: +0.29 C (about 0.52 degrees Fahrenheit) above 30-year average for July.
Southern Hemisphere: +0.32 C (about 0.58 degrees Fahrenheit) above 30-year average for July.
Tropics: +0.45 C (about 0.81 degrees Fahrenheit) above 30-year average for July.
June temperatures (revised):
Global Composite: +0.31 C above 30-year average
Northern Hemisphere: +0.32 C above 30-year average
Southern Hemisphere: +0.30 C above 30-year average
Tropics: +0.51 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 August 5, 2014:
In the tropics, July 2014 was the second warmest July in the 36-year satellite record, only 0.03 C cooler than July 2009 and 0.06 C warmer than July 1998, 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. The average temperature in the tropics during July was 0.45 C (about 0.81° F) warmer than seasonal norms for the month.
The global average temperature for July was 0.31 C (about 0.56 degrees Fahrenheit) warmer than seasonal norms, the fifth warmest July in the satellite record.
Compared to seasonal norms, the coldest place in Earth's atmosphere in July was over western Russia near the town of Verkhoturye (one of the oldest Russian towns east of the Urals), where Antarctic winter temperatures were as much as 3.77 C (about 6.79 degrees Fahrenheit) colder than seasonal norms. Compared to seasonal norms, the warmest departure from average in July was in northern Norway near the town of Borkenes. Temperatures there were as much as 2.93 C (about 5.27 degrees Fahrenheit) warmer than seasonal norms.
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 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.
Dr. John Christy, (256) 961-7763
Dr. Roy Spencer, (256) 961-7960
Dr. Roy Spencer | newswise
NASA sees Hurricane Jimena's large eye
01.09.2015 | NASA/Goddard Space Flight Center
First global antineutrino emission map highlights Earth's energy budget
01.09.2015 | University of Maryland
The leaves of the lotus flower, and other natural surfaces that repel water and dirt, have been the model for many types of engineered liquid-repelling surfaces. As slippery as these surfaces are, however, tiny water droplets still stick to them. Now, Penn State researchers have developed nano/micro-textured, highly slippery surfaces able to outperform these naturally inspired coatings, particularly when the water is a vapor or tiny droplets.
Enhancing the mobility of liquid droplets on rough surfaces could improve condensation heat transfer for power-plant heat exchangers, create more efficient...
Longer, more severe, and hotter droughts and a myriad of other threats, including diseases and more extensive and severe wildfires, are threatening to transform some of the world's temperate forests, a new study published in Science has found. Without informed management, some forests could convert to shrublands or grasslands within the coming decades.
"While we have been trying to manage for resilience of 20th century conditions, we realize now that we must prepare for transformations and attempt to ease...
A University of Oklahoma astrophysicist and his Chinese collaborator have found two supermassive black holes in Markarian 231, the nearest quasar to Earth, using observations from NASA's Hubble Space Telescope.
The discovery of two supermassive black holes--one larger one and a second, smaller one--are evidence of a binary black hole and suggests that supermassive...
A team of European researchers have developed a model to simulate the impact of tsunamis generated by earthquakes and applied it to the Eastern Mediterranean. The results show how tsunami waves could hit and inundate coastal areas in southern Italy and Greece. The study is published today (27 August) in Ocean Science, an open access journal of the European Geosciences Union (EGU).
Though not as frequent as in the Pacific and Indian oceans, tsunamis also occur in the Mediterranean, mainly due to earthquakes generated when the African...
In mountainous regions earthquakes often cause strong landslides, which can be exacerbated by heavy rain. However, after an initial increase, the frequency of these mass wasting events, often enormous and dangerous, declines, in fact independently of meteorological events and aftershocks.
These new findings are presented by a German-Franco-Japanese team of geoscientists in the current issue of the journal Geology, under the lead of the GFZ...
20.08.2015 | Event News
20.08.2015 | Event News
19.08.2015 | Event News
01.09.2015 | Press release
01.09.2015 | Materials Sciences
01.09.2015 | Materials Sciences