Navigation Links
Satellites shed light on global warming

As climate change continues to make headlines across the world, participants at the 2007 Envisat Symposium this week are hearing how Earth observation satellites allow scientists to better understand the parameters involved in global warming and how this is impacting the planet.

The cryosphere is both influenced by and has a major influence on climate. Because any increase in the melt rate of ice sheets and glaciers has the potential to greatly increase sea level, researchers are looking to the cryosphere to get a better idea of the likely scale of the impact of climate change. In addition, the melting of sea-ice will increase the amount of solar radiation that will be absorbed by ice-free polar oceans rather than reflected by ice-covered oceans, increasing the ocean temperature.

Average temperatures in the Antarctic Peninsula have risen over the last 50 years by half a degree Celsius a decade and are having an impact on the ice shelves and glaciers. Innsbruck University's Professor Helmut Rott has been observing the accelerated retreat and break-up of the Larsen Ice Shelf on the Antarctic Peninsula in the face of this warming through radar images acquired by ESA’s ERS and Envisat satellites.

The retreat has been accelerating since 1992 and has culminated in two collapse events: Larsen-A in January 1995 and Larsen-B in March 2002. Envisat captured the disintegration of the 200-metre-thick Larsen-B Ice Shelf, which researchers estimate had been stable since the last ice age 12 000 years ago.

"This retreat was triggered by climate warming, which caused prolonged summer melt seasons and the formation of extended melt water streams and ponds on the ice shelf surfaces," Rott said.

The sections of Larsen-A, which disintegrated almost completely in January 1995, and Larsen-B that broke away were 200 to 350 metres thick. According to Rott, only 1403 square kilometres of Larsen-B remain and will soon break away completely.
'"/>

Source:European Space Agency


Page: 1 2 3 4 5

Related biology news :

1. Satellites show Amazon parks, indigenous reserves stop forest clearing
2. Researchers discover way to make cells in the eye sensitive to light
3. Recent breakthroughs in common adult leukemia highlighted in New England Journal of Medicine
4. Bacteria collection sheds light on urinary tract infections
5. Sea skate experiment sheds light on human cell transport
6. X-Ray Beams And Fruit Fly Flight Simulator Aid Scientists View Of Muscle Power
7. McGill researchers shed light on formation of carcinogen in food
8. Scientists discover how plants disarm the toxic effects of excessive sunlight
9. Medical molecules designed to respond to visible light that can penetrate tissue
10. Genetic defects give the immune system the green light to attack the pancreas
11. Researchers find gene that may be at root of potato blight
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Satellites shed light global warming

(Date:4/2/2015)... In the current eight ... the strongest competitors, showing outstanding performance in recognition ... is capable of a throughput of 5.000.000 fingerprints ... be ten times faster than most competitors and ...      (Photo: http://photos.prnewswire.com/prnh/20150402/738673-a ) , ...
(Date:4/2/2015)... 2015 Fingerprint Cards (FPC) has ... from the distributor World Peace Industrial Group (WPI), part ... although the major part of the shipments will take ... by smartphone manufacturers in China . ... the communicated revenue guidance of + 1 000 MSEK for ...
(Date:3/31/2015)... 2015  Elephant Talk Communications Corp. (NYSE MKT: ETAK) ... Software Defined Network Architecture (ET Software DNA® 2.0) platforms ... approximately $20.4 million for the year ended December 31, ... the year ended December 31, 2013. ... completed its multi-year transition away from its legacy landline ...
Breaking Biology News(10 mins):DERMALOG AFIS Emerges as Performance Winner in NIST Benchmark Test 2DERMALOG AFIS Emerges as Performance Winner in NIST Benchmark Test 3Fingerprint Cards Receives Touch Fingerprint Sensor Order of SEK 110 Million 2Elephant Talk Reports 2014 Fourth Quarter and Year End Financial Results 2Elephant Talk Reports 2014 Fourth Quarter and Year End Financial Results 3Elephant Talk Reports 2014 Fourth Quarter and Year End Financial Results 4Elephant Talk Reports 2014 Fourth Quarter and Year End Financial Results 5Elephant Talk Reports 2014 Fourth Quarter and Year End Financial Results 6
... that the protein MDC1 amplifies weak DNA injury signals ... damage signals become strong enough to activate the cell's ... to repair. , How this "distress call" was ... the January 20 issue of Molecular Cell ( ...
... to help develop a new prosthetic arm that would work, feel ... key part of a U.S. Department of Defense contract worth up ... potentially others whose arms were amputated. , "Imagine an artificial arm ... to feel both the outside world and your own movements, and ...
... tigers helps reduce poverty and improve the lives of ... report. Now as the eighth Conference of the Parties ... Curitiba, Brazil, WWF urges the CBD and member governments ... poverty. , "Now's the time to recognize the ...
Cached Biology News:Mayo Clinic collaboration discovers protein amplifies DNA injury signals 2Mayo Clinic collaboration discovers protein amplifies DNA injury signals 3Both alcoholism and chronic smoking can damage the brain's prefrontal cortex 2Both alcoholism and chronic smoking can damage the brain's prefrontal cortex 3Both alcoholism and chronic smoking can damage the brain's prefrontal cortex 4Both alcoholism and chronic smoking can damage the brain's prefrontal cortex 5Protecting endangered species helps reduce poverty 2
(Date:4/24/2015)... AZ (PRWEB) April 24, 2015 The ... State University (ASU) have entered into an agreement to ... A memorandum of agreement signed by the universities will ... student success and other services particularly, though not exclusively, ... “We have complementary strengths and a similar set of ...
(Date:4/24/2015)... , April 24, 2015  Pfenex Inc. (NYSE ... development of biosimilar therapeutics including high value and difficult ... follow-on public offering of 6,000,000 shares of its common ... per share. Of the shares being offered, 2,610,000 are ... are being offered by existing stockholders. Pfenex will not ...
(Date:4/24/2015)... 24, 2015 Seoul Semiconductor announced ... various applications in the lighting market. In ... of this technology in emerging markets such as ... wide range of applications such as streetlight and ... lighting. , First launched in 2005 the Acrich ...
(Date:4/23/2015)... MISSISSAUGA, ON , April 23, 2015 /CNW/ ... major sustainable packaging award from North ... Packaging,s Brandcheck Competitor Comparison won Silver in the ... Awards. The Brandcheck "Competitor Comparison" is ... set of North American and Global peers. This ...
Breaking Biology Technology:South Dakota Mines, Arizona State University Pave Way for Cooperative Research 2Pfenex Inc. Announces Pricing Of Follow-on Offering 2Acrich Technology from Seoul Semiconductor Adopted in Installations Worldwide 2
... ... legal medical growers worldwide. Ministry of Cannabis has recently introduced 5 new strains with great ... (PRWEB) March ... made available 5 new varieties of marijuana seeds to legal growers worldwide. ...
... at the National Institute of Standards and Technology (NIST) have ... (ions) that potentially could process dozens of ions at once ... date. The novel design is a first attempt to systematically ... a few locations to large trap arrays that can process ...
... can wreak havoc on bacteria as well as humans and, ... place, explains Professor John van der Oost, at the Society ... bacterial "immune system" could be used to keep industrial microbes ... team at Wageningen University in the Netherlands have spent the ...
Cached Biology Technology:Ministry of Cannabis: A Growing Collection of Medical Cannabis Seeds 2Ministry of Cannabis: A Growing Collection of Medical Cannabis Seeds 3NIST racetrack ion trap is a contender in quantum computing quest 2
... The c-Jun proto-oncogene was first identified as ... v-jun oncogene. Jun B and Jun D have ... in their C-terminal regions, which are involved in ... which are involved in transcriptional activation, diverge. ...
...
... Rabbit polyclonal to JAK2 (phospho ... tested applications). Antigen: ... JAK2 around the phosphorylation site of ... Entrez Gene ID: ...
... Buffer, used in conjunction with eBioscience ... be used to fix and permeabilize ... of cytokines and other cytoplasmic and/or ... specially formulated for reducing non-specific staining ...
Biology Products: