Navigation Links
Antarctic icebergs play a previously unknown role in global carbon cycle, climate
Date:3/25/2011

In a finding that has global implications for climate research, scientists have discovered that when icebergs cool and dilute the seas through which they pass for days, they also raise chlorophyll levels in the water that may in turn increase carbon dioxide absorption in the Southern Ocean.

An interdisciplinary research team supported by the National Science Foundation (NSF) highlighted the research this month in the journal Nature Geosciences.

The research indicates that "iceberg transport and melting have a role in the distribution of phytoplankton in the Weddell Sea," which was previously unsuspected, said John J. Helly, director of the Laboratory for Environmental and Earth Sciences with the San Diego Supercomputer Center at the University of California, San Diego and Scripps Institution of Oceanography.

Helly was the lead author of the paper, "Cooling, Dilution and Mixing of Ocean Water by Free-drifting Icebergs in the Weddell Sea," which was first published in the journal Deep-Sea Research Part II.

The results indicate that icebergs are especially likely to influence phytoplankton dynamics in an area known as "Iceberg Alley," east of the Antarctic Peninsula, the portion of the continent that extends northwards toward Chile.

The latest findings add a new dimension to previous research by the same team that altered the perception of icebergs as large, familiar, but passive, elements of the Antarctic seascape. The team previously showed that icebergs act, in effect, as ocean "oases" of nutrients for aquatic life and sea birds.

The teams's research indicates that ordinary icebergs are likely to become more prevalent in the Southern Ocean, particularly as the Antarctic Peninsula continues a well-documented warming trend and ice shelves disintegrate. Research also shows that these ordinary icebergs are important features of not only marine ecosystems, but even of global carbon cycling.

"These
'/>"/>

Contact: Debra Wing
dwing@nsf.gov
703-292-5344
National Science Foundation
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. VIMS team returns to Antarctic Peninsula
2. NSFs Nathaniel B. Palmer sails with Swedens Oden to study Antarctic Peninsula ecosystem
3. Marine animals suggest evidence for a trans-Antarctic seaway
4. First nearshore survey of Antarctic krill reveals high density, stable population in shallow waters
5. Oceanographers call for more ocean observing in Antarctica
6. Pollution dispersion research aids understanding of 2002 break-up of Antarctic ozone hole
7. To the Antarctic or Brazil for new feathers
8. Scientists locate apparent hydrothermal vents off Antarctica
9. CCNY professor foresees rising Antarctic snowmelt
10. First comprehensive review of the state of Antarcticas climate
11. LSU gets to the bottom of things -- in Antarctica
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/17/2014)... N.C. , Dec. 16, 2014 Valencell, ... licensed its PerformTek biometric technology to industry leaders such ... highly accurate, clinically validated, biometric wearable products. These products ... 6-9 in Las Vegas . ... technology is accurate, flexible and robust – with the ...
(Date:12/11/2014)... 2014 Research and Markets ... ( http://www.researchandmarkets.com/research/twhjll/biometrics_market ) has announced the addition of ... 2015-2019"  report to their offering. ... advances in technology. With continuous advances in technology, ... the latest standard that meets the needs and ...
(Date:12/10/2014)... You,ve been here before: you desperately need to ... password, site key or the answer to your secret question. ... Today, Hoyos Labs , a digital ... finally put an end to the frustration that comes with ... 1U leverages a user,s smartphone to acquire his or her ...
Breaking Biology News(10 mins):Valencell PerformTek Biometrics Power the Most Accurate Wearables at CES 2015 2Biometrics Market in the APAC Region 2015-2019: Key Vendors are 3M Cogent, NEC, Safran and Suprema 2The Password is Finally Dead: Launch of 1U Mobile App Eliminates Need for All Usernames and Passwords 2The Password is Finally Dead: Launch of 1U Mobile App Eliminates Need for All Usernames and Passwords 3
... marine invertebrates worms, sponges, jellyfish - have the ... than two cells: a photoreceptor cell and a pigment ... suggested by Charles Darwin as the first eyes to ... allow the animal to sense the direction of light. ...
... Chemical Society (ACS) News Service Weekly PressPac with news from ... .,Please credit the individual journal or the American Chemical Society ... FOR IMMEDIATE RELEASE EXCEPT ARTICLE #5, which is embargoed for ... ARTICLE #1 FOR IMMEDIATE RELEASE Microcapsules act as ...
... a few extra treats this holiday season? Soon, your ... your exercise routine and keep the pounds off over ... to keep track. Researchers at the University of ... applications, dubbed UbiFit and UbiGreen, to automatically track workouts ...
Cached Biology News:Uncovering secrets of life in the ocean 2American Chemical Society's Weekly PressPac -- Nov. 19, 2008 2American Chemical Society's Weekly PressPac -- Nov. 19, 2008 3American Chemical Society's Weekly PressPac -- Nov. 19, 2008 4American Chemical Society's Weekly PressPac -- Nov. 19, 2008 5American Chemical Society's Weekly PressPac -- Nov. 19, 2008 6American Chemical Society's Weekly PressPac -- Nov. 19, 2008 7American Chemical Society's Weekly PressPac -- Nov. 19, 2008 8Track your fitness, environmental impact with new cell phone applications 2Track your fitness, environmental impact with new cell phone applications 3
(Date:12/22/2014)... Dec. 22, 2014  ( www.competitivehealth.com ) — Competitive ... medical bill review and advocacy service, has signed an ... WellCard Savings discount health services marketplace. 63% ... more than they expected to pay. As part of ... costs, WellCard Savings is pleased to offer medical bill ...
(Date:12/22/2014)... 22, 2014 Fertility Associates of Memphis ... Bank USA , a network of more than 20 ... partnership, patients have fast access to a national pool ... IVF . Fertility Associates of Memphis is the only ... treatment option. , Dr. William Kutteh , director ...
(Date:12/19/2014)... BioPlus Specialty Pharmacy (BioPlus), one ... of Nick Maroulis, Pharm.D. to the newly created position ... In this position, Dr. Maroulis will continue to manage ... of our multi-site pharmacies as the company expands. Dr. ... that time he has served in many different capacities ...
(Date:12/19/2014)... Dec. 19, 2014 Bina Technologies, Inc. (Bina, ... that they have been acquired by Roche (SIX: RO, ... privately held company that provides a big data platform ... (NGS) data for the academic and translational research markets. ... and will continue to focus on development of their ...
Breaking Biology Technology:WellCard Savings Announces CoPatient Medical Bill Review Service for Members 2Fertility Associates of Memphis Announces Partnership with Donor Egg Bank USA 2Fertility Associates of Memphis Announces Partnership with Donor Egg Bank USA 3BioPlus Specialty Pharmacy Promotes Dr. Nick Maroulis to Vice President of Specialty Pharmacy Services 2Bina Technologies is acquired by Roche. 2Bina Technologies is acquired by Roche. 3
... State University have developed a cheap and easy ... density. The researchers hope the findings will foster ... using nanowires, from nanoelectronics to nanosensors, especially on ... "Alignment is a critical first step for ...
... CAMBRIDGE, Mass., Feb. 28, 2011 Idenix Pharmaceuticals, Inc. ... in the discovery and development of drugs for the ... results for the fourth quarter and year ended December ... cash equivalents totaled $46.1 million. ...
... Feb. 28, 2011 Verenium Corporation (Nasdaq: ... specialty enzymes, today announced that Terminal 6, a major ... begun use of Verenium,s Purifine enzymatic degumming process at ... enzymatic degumming is a novel process that significantly increases ...
Cached Biology Technology:Stretched rubber offers simpler method for assembling nanowires 2Idenix Pharmaceuticals Reports Fourth Quarter and Year End 2010 Financial Results 2Idenix Pharmaceuticals Reports Fourth Quarter and Year End 2010 Financial Results 3Idenix Pharmaceuticals Reports Fourth Quarter and Year End 2010 Financial Results 4Idenix Pharmaceuticals Reports Fourth Quarter and Year End 2010 Financial Results 5Idenix Pharmaceuticals Reports Fourth Quarter and Year End 2010 Financial Results 6Idenix Pharmaceuticals Reports Fourth Quarter and Year End 2010 Financial Results 7World's Largest Soybean Processing Industrial Complex Converts Half of Capacity to Usage of Verenium's Purifine® PLC Enzymatic Degumming Process Engineered and Installed by Alfa Laval 2World's Largest Soybean Processing Industrial Complex Converts Half of Capacity to Usage of Verenium's Purifine® PLC Enzymatic Degumming Process Engineered and Installed by Alfa Laval 3World's Largest Soybean Processing Industrial Complex Converts Half of Capacity to Usage of Verenium's Purifine® PLC Enzymatic Degumming Process Engineered and Installed by Alfa Laval 4
Anti-Wnt-2 Polyclonal Antibody Description: 100 g purified goat polyclonal antibody. Reacts with human/mouse/rat. Tested in Western blot/IP/IHC. Research Focus: signal transduction Storage...
... custom microplate coating using advanced automated high throughput microplate processing ... We can also accommodate virtually any lot size of the ... , 8 and 12 well ... 384 well microplate, ...
...
... Mynox is the first ... by killing them, and not ... is the only anti-mycoplasma agent ... clean virus stocks directly. The ...
Biology Products: