Navigation Links
NASA finds 2011 ninth-warmest year on record
Date:1/19/2012

The global average surface temperature in 2011 was the ninth warmest since 1880, according to NASA scientists. The finding continues a trend in which nine of the 10 warmest years in the modern meteorological record have occurred since the year 2000.

NASA's Goddard Institute for Space Studies (GISS) in New York, which monitors global surface temperatures on an ongoing basis, released an updated analysis that shows temperatures around the globe in 2011 compared to the average global temperature from the mid-20th century. The comparison shows how Earth continues to experience warmer temperatures than several decades ago. The average temperature around the globe in 2011 was 0.92 degrees F (0.51 C) warmer than the mid-20th century baseline.

"We know the planet is absorbing more energy than it is emitting," said GISS Director James E. Hansen. "So we are continuing to see a trend toward higher temperatures. Even with the cooling effects of a strong La Nia influence and low solar activity for the past several years, 2011 was one of the 10 warmest years on record."

The difference between 2011 and the warmest year in the GISS record (2010) is 0.22 degrees F (0.12 C). This underscores the emphasis scientists put on the long-term trend of global temperature rise. Because of the large natural variability of climate, scientists do not expect temperatures to rise consistently year after year. However, they do expect a continuing temperature rise over decades.

The first 11 years of the 21st century experienced notably higher temperatures compared to the middle and late 20th century, Hansen said. The only year from the 20th century in the top 10 warmest years on record is 1998.

Higher temperatures today are largely sustained by increased atmospheric concentrations of greenhouse gases, especially carbon dioxide. These gases absorb infrared radiation emitted by Earth and release that energy into the atmosphere rather than allowing it to escape to space. As their atmospheric concentration has increased, the amount of energy "trapped" by these gases has led to higher temperatures.

The carbon dioxide level in the atmosphere was about 285 parts per million in 1880, when the GISS global temperature record begins. By 1960, the average concentration had risen to about 315 parts per million. Today it exceeds 390 parts per million and continues to rise at an accelerating pace.

The temperature analysis produced at GISS is compiled from weather data from more than 1,000 meteorological stations around the world, satellite observations of sea surface temperature and Antarctic research station measurements. A publicly available computer program is used to calculate the difference between surface temperature in a given month and the average temperature for the same place during 1951 to 1980. This three-decade period functions as a baseline for the analysis.

The resulting temperature record is very close to analyses by the Met Office Hadley Centre in the United Kingdom and the National Oceanic and Atmospheric Administration's National Climatic Data Center in Asheville, N.C.

Hansen said he expects record-breaking global average temperature in the next two to three years because solar activity is on the upswing and the next El Nio will increase tropical Pacific temperatures. The warmest years on record were 2005 and 2010, in a virtual tie.

"It's always dangerous to make predictions about El Nio, but it's safe to say we'll see one in the next three years," Hansen said. "It won't take a very strong El Nio to push temperatures above 2010."


'/>"/>

Contact: Leslie McCarthy
leslie.m.mccarthy@nasa.gov
212-678-5507
NASA/Goddard Space Flight Center
Source:Eurekalert  

Related biology news :

1. Mysterious flotsam in Gulf of Mexico came from Deepwater Horizon rig, WHOI study finds
2. Team finds a better way to gauge the climate costs of land use changes
3. Study finds age-related effects in MS may be reversible
4. Study finds air pollution linked to diabetes and hypertension in African-American women
5. MU researchers photoacoustic device finds cancer cells before they become tumors
6. Wayne State study finds soybean compounds enhances effects of cancer radiotherapy
7. Close family ties keep microbial cheaters in check, study finds
8. Study finds increasing atmospheric concentrations of new flame retardants
9. Solar power much cheaper to produce than most analysts realize, study finds
10. Researcher finds key to ancient weather patterns in Floridas caves
11. Study finds climate changes faster than species can adapt
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
NASA finds 2011 ninth-warmest year on record
(Date:3/9/2016)... , March 9, 2016  Crossmatch ® , ... enrollment solutions, today announced the addition of smart ... Altus multi-factor authentication platform. New contextual and ... to step-up security where it,s needed most — ... Washington, DC . --> ...
(Date:3/3/2016)... March 3, 2016  FlexTech, a SEMI Strategic Association ... Innovation, Research & Development, Leadership in Education, and, in ... the 9 th year of the FLEXI Awards ... and individuals from past years . Judging was ... pre-described set of criteria, by a panel of non-affiliated, ...
(Date:3/3/2016)... NOTTINGHAM, England and DE SOTO, ... , U.S.-based Stroke Detection Plus® to offer Oncimmune,s ... the risk assessment and early detection of lung cancer ... include large employers, unions and individuals. --> ... employers, unions and individuals. --> Oncimmune, a ...
Breaking Biology News(10 mins):
(Date:4/28/2016)... Boston, MA (PRWEB) , ... April 28, 2016 ... ... (EDT), Asymmetrex will deliver a talk on its first-in-class technologies for ... the 2016 Meeting on RNAiMicroRNA Biology to Reprogramming & CRISPR-based Genome ...
(Date:4/27/2016)... ... ... The Pittcon Organizing Committee is pleased to announce that Charles “Chuck” Gardner ... Committee since 1987. Since then, he has served in a number of key leadership ... both the program and exposition committees. In his professional career, Dr. Gardner is the ...
(Date:4/27/2016)... (PRWEB) , ... April 27, 2016 , ... ... that Jon Clark has joined the company as an Expert Consultant. Mr. ... for industry collaborations and managing the development of small molecule monographs based on ...
(Date:4/27/2016)... MedDay, a biotechnology company focused on the treatment of ... as Chairman of its Board of Directors. Catherine ... who contributed to the rapid development of the Company since ... her career in strategy consulting and investment banking in ...  She held C-Suite level roles in some of ...
Breaking Biology Technology: