Navigation Links
Extreme melting on Greenland ice sheet, reports CCNY team
Date:10/25/2011

The Greenland ice sheet can experience extreme melting even when temperatures don't hit record highs, according to a new analysis by Dr. Marco Tedesco, assistant professor in the Department of Earth and Atmospheric Sciences at The City College of New York. His findings suggest that glaciers could undergo a self-amplifying cycle of melting and warming that would be difficult to halt.

"We are finding that even if you don't have record-breaking highs, as long as warm temperatures persist you can get record-breaking melting because of positive feedback mechanisms," said Professor Tedesco, who directs CCNY's Cryospheric Processes Laboratory and also serves on CUNY Graduate Center doctoral faculty.

Professor Tedesco and his team collected data for the analysis this past summer during a four-week expedition to the Jakobshavn Isbr glacier in western Greenland. Their arrival preceded the onset of the melt season.

Combining data gathered on the ground with microwave satellite recordings and the output from a model of the ice sheet, he and graduate student Patrick Alexander found a near-record loss of snow and ice this year. The extensive melting continued even without last year's record highs.

The team recorded data on air temperatures, wind speed, exposed ice and its movement, the emergence of streams and lakes of melt water on the surface, and the water's eventual draining away beneath the glacier. This lost melt water can accelerate the ice sheet's slide toward the sea where it calves new icebergs. Eventually, melt water reaches the ocean, contributing to the rising sea levels associated with long-term climate change.

The model showed that melting between June and August was well above the average for 1979 to 2010. In fact, melting in 2011 was the third most extensive since 1979, lagging behind only 2010 and 2007. The "mass balance", or amount of snow gained minus the snow and ice that melted away, ended up tying last ye
'/>"/>

Contact: Jessa Netting
jnetting@ccny.cuny.edu
212-650-7615
City College of New York
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Vegetation hardly affected by extreme flood events
2. Extreme nature helps scientists design nano materials
3. Extreme weather postpones the flowering time of plants
4. Geoscientists discuss sea level rise, extreme storm events and more
5. Genome projects launched for three extreme-environment animals
6. Treatment for extreme nausea, vomiting during pregnancy
7. Scientists track chemical changes in cells as they endure extreme conditions
8. Extreme genes shed light on origins of photosynthesis
9. First metallic nanoparticles resistant to extreme heat
10. Extremes of sleep related to increased fat around organs
11. Road salt and cars produce extreme water contamination in Frenchmans Bay, UTSC research reveals
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/7/2015)... MOUNTAIN VIEW, Calif. , July 7, 2015 ... mobile biometrics market, Frost & Sullivan recognizes Credence ... & Sullivan Entrepreneurial Company of the Year ... product suite to aid in its mission of ... and under-recognized populations globally. As Credence ID was ...
(Date:7/2/2015)... , June 25, 2015 ... the addition of the "Natural Language Processing ... (Recognition, IVR, OCR, Pattern & Image Recognition) - ... offering. The key vendors occupying the ... IBM Corporation, Microsoft Corporation, NetBase Solutions, SAS Institute ...
(Date:7/2/2015)... July 2, 2015 Fingerprint Cards has ... FPC1145 and FPC1155 from the distributor World Peace Industrial Group ... distributors in Asia . Deliveries are planned ... will be used by smartphone manufacturers in Asia ... in the communicated revenue guidance of approximately 2,200 MSEK for ...
Breaking Biology News(10 mins):Frost & Sullivan Acknowledges the Distinctive Customer-focused Attributes of Credence ID's Mobile Biometric Product Suite 2Frost & Sullivan Acknowledges the Distinctive Customer-focused Attributes of Credence ID's Mobile Biometric Product Suite 3Frost & Sullivan Acknowledges the Distinctive Customer-focused Attributes of Credence ID's Mobile Biometric Product Suite 4Frost & Sullivan Acknowledges the Distinctive Customer-focused Attributes of Credence ID's Mobile Biometric Product Suite 5Natural Language Processing Market by Type (Rule-Based, Statistical, and Hybrid), Technologies (Recognition, IVR, OCR, Pattern & Image Recognition) - Worldwide Forecast to 2020 2FPC Receives Order for Touch Fingerprint Sensors of 268 MSEK 2
... PARK, MD, Nov. 25, 2008 -- Researchers in Ohio ... magnetic resonance -- the physical phenomenon that allows MRI ... the human body. Their discovery, a new mathematical ... informative and sharper images. As described in ...
... -- Dieters or those who consume fewer calories during flu ... virus, according to research by Michigan State University nutritional immunology ... November issue of the Journal of Nutrition , Gardner ... to die during the first few days of infection than ...
... The Oklahoma Experimental Program to Stimulate Competitive Research (EPSCoR) ... National Science Foundation (NSF) and the Oklahoma State Regents ... annual support is renewable for the next five years ... new theme area, "Building Oklahoma,s Leadership Role in Cellulosic ...
Cached Biology News:New discovery may enhance MRI scans, lead to portable MRI machines 2Feed a cold, feed a fever: Research shows calorie cut makes it harder to fight flu 2Oklahoma EPSCoR receives $20 million for biofuels research 2
(Date:8/3/2015)... WA (PRWEB) , ... August 03, 2015 , ... ... and TLD5000 diaphragm vacuum pumps to its comprehensive line of analytical laboratory equipment. ... steel valves, these versatile pumps provide a chemically resistant and maintenance-free solution for ...
(Date:7/31/2015)... ... July 31, 2015 , ... Global ... and premium industry insights on the global resorcinol industry. The report highlights the ... of vivid market scenarios and analysis of primary and secondary inputs from the ...
(Date:7/31/2015)... ... July 31, 2015 , ... R-Biopharm is proud to ... hydrolyzed gluten in foods, has been accepted by AOAC International as Official First ... in Fermented Cereal-Based Products by R5 Competitive ELISA,” based on a specific monoclonal ...
(Date:7/30/2015)... 30, 2015 AACC welcomed thousands of ... AACC Annual Meeting & Clinical Lab Expo in ... The meeting showcased revolutionary advancements in clinical testing ... healthcare providers to diagnose patients quickly and accurately ... As of Wednesday, July 29, ...
Breaking Biology Technology:Sterlitech Launches New Line of Vacuum Pumps 2Resorcinol Market to Grow at 6% CAGR to 2019 Says New Research Report at ReportsnReports.com 2Resorcinol Market to Grow at 6% CAGR to 2019 Says New Research Report at ReportsnReports.com 3Resorcinol Market to Grow at 6% CAGR to 2019 Says New Research Report at ReportsnReports.com 4RIDASCREEN® Competitve Gliadin Receives AOAC Official First Action Status 2Innovative Research on Cancer, Heart Disease, and Infectious Diseases Draws More than 17,500 Attendees to 2015 AACC Annual Meeting 2Innovative Research on Cancer, Heart Disease, and Infectious Diseases Draws More than 17,500 Attendees to 2015 AACC Annual Meeting 3Innovative Research on Cancer, Heart Disease, and Infectious Diseases Draws More than 17,500 Attendees to 2015 AACC Annual Meeting 4
... is a national priority , ,MADISON - Kathleen ... at the U.S. Department of Health and Human Services, ... advisor of the National Health Information Infrastructure at HHS, ... Conference being held June 22-23, at the Fluno Center ...
... The University of Wisconsin-Madison Department of Educational Psychology has ... Distributed Learning Co-Lab to create new worlds in ... , ,"The Department's Learning Sciences Program studies ... , professor in UW-Madison's School of Education. "We have ...
... ,MADISON, Wis. The federal government is working quickly ... mind while developing a Federal Health Architecture ... budget, technology and finance for the U.S. Department of ... Digital Healthcare Conference during her keynote speech ...
Cached Biology Technology:U.S. Health and Human Services officials to speak at the Digital Healthcare Conference 2University of Wisconsin team creates learning games 2University of Wisconsin team creates learning games 3HHS official addresses industry concerns on Federal Health Architecture 2
... designed to rapidly and reliably amplify ... patented APA Technology. APAgene provides hassle-free, ... competitive price. All necessary ingredients are ... Kit can be used for identifying ...
... one of the several main MAP kinase ... a sensitive reporter for studying gene regulation ... in sensitivity in comparison to the standard ... the oxidative carboxylation of luciferin, a reaction ...
Recommended for supporting the growth of anchorage-dependent cells including human and mouse stromal cells, mesenchymal cells and cell lines....
... The FailSafe™ PCR System is the only ... first time and every time. It provides ... of the source or the property of ... FailSafe™ PCR Enzyme Mix, a unique blend ...
Biology Products: