Navigation Links
AGU journal highlights -- Aug. 6, 2009
Date:8/6/2009

o earthquakes. Previous studies had found that this hum is excited by infragravity waves, a type of ocean wave that originates in shallow water along coasts, but it was uncertain whether hum is generated primarily by infragravity waves in the deep ocean or along coastlines. To pinpoint the sources of Earth's hum, Bromirski and Gerstoft correlate hum intensity data from the EarthScope USArray transportable array with ocean wave height measurements and model simulations. Their results show that the hum is generated primarily along coasts, with no significant hum generation in the deep ocean. In particular, they find that the Pacific coasts of North America and Central America are important sources of the hum, and the west coast of Europe is a strong secondary source region, while no significant hum was detected from the Southern Hemisphere during the study period (November 2006 to June 2007). The study is the first to identify these specific source regions for Earth's hum.

Title: Dominant source regions of the Earth's "hum" are coastal

Authors: Peter D. Bromirski and Peter Gerstoft: Scripps Institution of Oceanography, University of California, San Diego, La Jolla, California, USA.

Source: Geophysical Research Letters (GRL) paper 10.1029/2009GL038903, 2009 http://dx.doi.org/10.1029/2009GL038903


3. IPCC models might overestimate methane and nitrous oxide emissions from the ocean

With a global warming potential about 20 times as large as carbon dioxide, methane is a strong greenhouse gas, as is nitrous oxide, which has about 300 times carbon dioxide's warming potential. Both are produced in the ocean by microbial activity. Although more than 30 years old, assessments of the rate of methane emitted by the ocean are included in the Intergovernmental Panel on Climate Change's (IPCC) recent reports and are used as inputs into climate forecasts. Ho
'/>"/>

Contact: Maria-Jose Vinas
mjvinas@agu.org
202-777-7530
American Geophysical Union
Source:Eurekalert

Page: 1 2 3 4 5 6 7 8 9 10 11 12 13

Related biology news :

1. News tips from the Journal of Neuroscience
2. Tips from the Journals of the American Society for Microbiology
3. Story ideas from the Journal of Lipid Research
4. Highlights from the September 2007 Journal of the American Dietetic Association
5. AGU journal highlights -- Sept. 6, 2007
6. Springer will publish Journal of Coastal Conservation
7. ESA celebrates 100 years of insect science journals
8. Springer and the New York Botanical Garden Press join forces to publish botanical journals
9. 200 journals join in theme issues on poverty and human development
10. New ETH Zurich article published in scientific journal Nature
11. Media highlights in the November issues of Biophysical Journal
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/15/2014)... produced naturally across all kingdoms of life and constitute ... range of biological activities. The presence of halogen substituents ... their molecular properties. , One of the ... the late-stage, site-specific incorporation of a halogen atom into ... bond (one of the most inert chemical bonds known ...
(Date:9/15/2014)... new strategic vision document, released today by the ... the long-term goals, objectives, and strategies for the ... over the next five years (2015-2020). In ... activities, to be funded in 2015, will include ... fellowships. , The $500 million, 30-year program ...
(Date:9/15/2014)... that affect hearing and cognitive function may play roles ... and perceive rhythm, pitch, timbre, tone durations, and formal ... BioEssays article explain that extremes in musical aptitude ... the majority of individuals having moderate aptitude. , "This ... to several underlying genes, and it is influenced to ...
Breaking Biology News(10 mins):Pitt chemical biologist finds new halogenation enzyme 2NAS Gulf Research Program announces strategic vision, initial opportunities 2NAS Gulf Research Program announces strategic vision, initial opportunities 3NAS Gulf Research Program announces strategic vision, initial opportunities 4
... propose ever-larger conservation areas in the tropics, ones that ... banding together with their community leaders who ultimately determine ... parts of the world., "When people sacrifice to conserve, ... Christie, University of Washington associate professor of marine affairs ...
... Alexandria, Va. The American Association for Dental ... 2010 AADR Neal W. Chilton Fellowship in Clinical Research ... Meeting & Exhibition in Washington, DC, March 3, 2010. ... and associate director of the Delta Dental of Kentucky ...
... the first-ever data to show that the enzyme calcineurin is ... and that loss of the protein leads to heart problems ... in the Journal of Biological Chemistry as the ... research was led by scientists at Cincinnati Children,s Hospital Medical ...
Cached Biology News:Local social dynamics key to success of tropical marine conservation areas 2Scientists identify critical enzyme in healthy heart function 2
(Date:9/15/2014)... Bioptigen announced today the availability ... the optical device metrology and pre-clinical ophthalmic research markets. ... for Contact Lens Metrology is designed for non-destructive, non-contact, ... lens, IOL structures, and donor tissues. The ... immersed in a hydration bath (saline), automated segmentation of ...
(Date:9/15/2014)... -- iVinci Health LLC, the company behind the healthcare industry,s ... as VisitPay®, has successfully closed $5 million in new ... new extension to VisitPay® – an online Payment and ... for patients to manage their medical bills and set-up ... families. The new round of funding, which ...
(Date:9/15/2014)... AUSTIN, Texas , Sept. 15, 2014 The ... changes in climate, says a new article published by the ... Ahmed , PhD, on climate change and its effects on ... part of an extensive study conducted by Dr. Ahmed in ... China and has implications for the future ...
(Date:9/15/2014)... 15. September 2014 Die zweite jährliche ... vom 12. bis 18. Oktober stattfinden. Die IPAW ... Therapeutics Association (PPTA) und ihrer Mitgliedsunternehmen ... Das globale Bewusstsein für die Gewinnung von Quellplasma ... beim Retten und Verbessern von Leben zu würdigen ...
Breaking Biology Technology:Bioptigen Introduces Deep Imaging OCT System for Contact Lens Metrology 2iVinci Health Raises $5M to Fuel National Expansion, Announces Launch of Personal Finance Portal for Healthcare 2iVinci Health Raises $5M to Fuel National Expansion, Announces Launch of Personal Finance Portal for Healthcare 3Tea Taste and Quality Affected by Climate Change 2Tea Taste and Quality Affected by Climate Change 3Tea Taste and Quality Affected by Climate Change 4International Plasma Awareness Week feiert Spender und rückt seltene Krankheiten in den Mittelpunkt 2International Plasma Awareness Week feiert Spender und rückt seltene Krankheiten in den Mittelpunkt 3
... for Nanotechnology (LCN) have discovered electronic stripes, called ,charge ... that make up a graphitic superconductor. This is the ... and the finding is likely to have profound implications ... scientists believe will play a key role in the ...
... Inc. (NYSE: WPI ) today announced that ... the United States Food and Drug Administration for its ... and 0.02 mg ethinyl estradiol), a generic version of ... in patent litigation with Bayer concerning this product.  ...
... HAYWARD, Calif., Nov. 29, 2011 Metabolex, Inc., ... development of proprietary new medicines for the treatment ... has been recognized in Windhover,s "Top 10 most ... a potential best-in-class treatment for gout that not ...
Cached Biology Technology:Graphene earns its stripes 2Watson's Generic Yaz(R) Receives FDA Approval 2Metabolex Gout Program Recognized in Windhover's Top 10 Most Interesting Projects to Watch 2Metabolex Gout Program Recognized in Windhover's Top 10 Most Interesting Projects to Watch 3