Free Newsletters - Space News - Defense Alert - Environment Report - Energy Monitor
. 24/7 Space News .




CLIMATE SCIENCE
NASA Finds 2013 Sustained Long-Term Climate Warming Trend
by Staff Writers
Washington DC (SPX) Jan 23, 2014


These maps show NASA's global temperature data and trends as they relate to El Nino years since 1950. Image courtesy NASA Earth Observatory. For a larger version of this image please go here.

NASA scientists say 2013 tied with 2009 and 2006 for the seventh warmest year since 1880, continuing a long-term trend of rising global temperatures. With the exception of 1998, the 10 warmest years in the 134-year record all have occurred since 2000, with 2010 and 2005 ranking as the warmest years on record.

NASA's Goddard Institute for Space Studies (GISS) in New York, which analyzes global surface temperatures on an ongoing basis, released an updated report Tuesday on temperatures around the globe in 2013. The comparison shows how Earth continues to experience temperatures warmer than those measured several decades ago.

The average temperature in 2013 was 58.3 degrees Fahrenheit (14.6 Celsius), which is 1.1 F (0.6 C) warmer than the mid-20th century baseline. The average global temperature has risen about 1.4 degrees F (0.8 C) since 1880, according to the new analysis. Exact rankings for individual years are sensitive to data inputs and analysis methods.

"Long-term trends in surface temperatures are unusual and 2013 adds to the evidence for ongoing climate change," GISS climatologist Gavin Schmidt said. "While one year or one season can be affected by random weather events, this analysis shows the necessity for continued, long-term monitoring."

Scientists emphasize that weather patterns always will cause fluctuations in average temperatures from year to year, but the continued increases in greenhouse gas levels in Earth's atmosphere are driving a long-term rise in global temperatures.

Each successive year will not necessarily be warmer than the year before, but with the current level of greenhouse gas emissions, scientists expect each successive decade to be warmer than the previous.

Carbon dioxide is a greenhouse gas that traps heat and plays a major role in controlling changes to Earth's climate. It occurs naturally and also is emitted by the burning of fossil fuels for energy. Driven by increasing man-made emissions, the level of carbon dioxide in Earth's atmosphere presently is higher than at any time in the last 800,000 years.

The carbon dioxide level in the atmosphere was about 285 parts per million in 1880, the first year in the GISS temperature record. By 1960, the atmospheric carbon dioxide concentration, measured at the National Oceanic and Atmospheric Administration's (NOAA) Mauna Loa Observatory in Hawaii, was about 315 parts per million. This measurement peaked last year at more than 400 parts per million.

While the world experienced relatively warm temperatures in 2013, the continental United States experienced the 42nd warmest year on record, according to GISS analysis. For some other countries, such as Australia, 2013 was the hottest year on record.

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, taking into account station history and urban heat island effects.

Software is used to calculate the difference between surface temperature in a given month and the average temperature for the same place from 1951 to 1980. This three-decade period functions as a baseline for the analysis. It has been 38 years since the recording of a year of cooler than average temperatures.

The GISS temperature record is one of several global temperature analyses, along with those produced by the Met Office Hadley Centre in the United Kingdom and NOAA's National Climatic Data Center in Asheville, N.C. These three primary records use slightly different methods, but overall, their trends show close agreement.

.


Related Links
Earth science at NASA
Climate Science News - Modeling, Mitigation Adaptation






Comment on this article via your Facebook, Yahoo, AOL, Hotmail login.

Share this article via these popular social media networks
del.icio.usdel.icio.us DiggDigg RedditReddit GoogleGoogle




Memory Foam Mattress Review
Newsletters :: SpaceDaily :: SpaceWar :: TerraDaily :: Energy Daily
XML Feeds :: Space News :: Earth News :: War News :: Solar Energy News





CLIMATE SCIENCE
Princeton model anticipates ecological impacts of human responses to climate
Princeton NJ (SPX) Jan 23, 2014
Throughout history, humans have responded to climate. Take, for example, the Mayans, who, throughout the eighth and 10th centuries, were forced to move away from their major ceremonial centers after a series of multi-year droughts, bringing about agricultural expansion in Mesoamerica, and a clearing of forests. Much later, in the late 20th century, frequent droughts caused the people of Burkina ... read more


CLIMATE SCIENCE
China's moon rover experiences abnormality

Yutu moon rover has 'abnormality': Xinhua

NASA Seeks Partnership Opportunities For Commercial Lunar Landers

Chang'e-3 probe sets out on new missions

CLIMATE SCIENCE
NASA Receives Mars 2020 Rover Instrument Proposals for Evaluation

Opportunity at 10: New Findings from Old Rover

Mars 'jelly doughnut' rock intrigues scientists

Mystery Mars rock reveals unexpected chemical composition

CLIMATE SCIENCE
NASA launches communications satellite

At Your Service: Orion Service Module Complete

Lawrence Livermore 'space cops' to help control traffic in space

NASA's Dryden Flight Research Center to be Renamed for Neil Armstrong

CLIMATE SCIENCE
Netizens extend blessings to troubled lunar rover

Official: China's space policy open to world

China launches communications satellite for Bolivia

China's moon rover continues lunar survey after photographing lander

CLIMATE SCIENCE
Israeli astronaut may go to ISS by Russia's Soyuz spacecraft

Cygnus Work Under Way, Normal Station Operations Continue

Spaceflight, Nanoracks Partnership Launch CubeSat Customers Towards Historic ISS Deployment

Orbital's cargo ship arrives at space station

CLIMATE SCIENCE
45th Space Wing Supports NASA Launch

Athena-Fidus receives its "kick" for Arianespace's upcoming Ariane 5 launch

ILS Proton To Launch Yamal 601

Turkish Telecoms Satellite to Launch From Baikonur Feb. 15

CLIMATE SCIENCE
ALMA Discovers a Formation Site of a Giant Planetary System

Herschel Telescope Detects Water on Dwarf Planet

Bright star reveals new exoplanet

'Dwarf planet' in deep space has water

CLIMATE SCIENCE
Google says buys artificial intelligence firm DeepMind

'Gears of War' videogame will stay in Xbox arsenal

MDA awarded key development work for exploration and communications

Lenovo to buy IBM's low-end server business for $2.3bn




The content herein, unless otherwise known to be public domain, are Copyright 1995-2014 - Space Media Network. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA Portal Reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. Advertising does not imply endorsement,agreement or approval of any opinions, statements or information provided by Space Media Network on any Web page published or hosted by Space Media Network. Privacy Statement