First buoy to monitor ocean acidification launchedJune 13, 2007Scientists will measure air-sea exchange of carbon dioxide, oxygen and nitrogen gas in Gulf of Alaska The first buoy to monitor ocean acidification has been launched in the Gulf of Alaska. Attached to the 10-foot-diameter buoy are sensors to measure climate indicators. Acidification is a result of carbon dioxide absorbed by the seas.
"The instruments will measure the air-sea exchange of carbon dioxide, oxygen and nitrogen gas in addition to the pH, a measure of ocean acidity, of the surface waters," said Steven Emerson of the University of Washington, the project's lead scientist. "This is the first system specifically designed to monitor ocean acidification." The buoy is anchored in water nearly 5,000 meters deep. Once it hit the water, the buoy immediately began to transmit data via satellite. The buoy is part of a National Science Foundation (NSF) grant awarded to oceanographers at the University of Washington and Oregon State University, working in collaboration with scientists at NOAA's Pacific Marine Environmental Laboratory (PMEL), and at Fisheries and Oceans Canada and the Institute of Ocean Sciences in Sidney, B.C. "Information from this buoy will lead to a better understanding of ocean acidification--a growing threat to the world's oceans--by helping scientists determine exactly how physical and biological processes affect carbon dioxide in the north Pacific Ocean," said Fred Lipschultz, program director in NSF's division of ocean sciences. The grant was funded through NSF's Biocomplexity in the Environment emphasis area on Carbon and Water in the Earth System. The goal of the research is to examine how ocean circulation and ecosystems interact to determine how much carbon dioxide the north Pacific Ocean absorbs each year. "The Gulf of Alaska region is particularly important because it is likely to be one of the first regions to feel the impacts of ocean acidification," said Christopher Sabine, a PMEL oceanographer. "This a significant step in furthering our understanding of how the ocean is reacting to carbon dioxide, as well as an important addition to the growing Global Ocean Observing System of Systems, which incorporates the best technology to provide the best science to help decision makers and the general public," said Richard Spinrad, assistant administrator of NOAA's Office of Oceanic and Atmospheric Research. Useful NSF Web Sites: NSF Home Page: http://www.nsf.gov NSF News: http://www.nsf.gov/news/ For the News Media: http://www.nsf.gov/news/newsroom.jsp Science and Engineering Statistics: http://www.nsf.gov/statistics/ Awards Searches: http://www.nsf.gov/awardsearch/ National Science Foundation | ||||||||||
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Related Ocean Acidification News Articles A dash of lime -- a new twist that may cut CO2 levels back to pre-industrial levels Scientists say they have found a workable way of reducing CO2 levels in the atmosphere by adding lime to seawater. And they think it has the potential to dramatically reverse CO2 accumulation in the atmosphere, reports Cath O'Driscoll in SCI's Chemistry & Industry magazine published today. Scientists discover new reefs teeming with marine life in Brazil Scientists announced today the discovery of reef structures they believe doubles the size of the Southern Atlantic Ocean's largest and richest reef system, the Abrolhos Bank, off the southern coast of Brazil's Bahia state. The newly discovered area is also far more abundant in marine life than the previously known Abrolhos reef system, one of the world's most unique and important reefs. NOAA report states half of US coral reefs in 'poor' or 'fair' condition Nearly half of U.S. coral reef ecosystems are considered to be in "poor" or "fair" condition according to a new NOAA analysis of the health of coral reefs under U.S. jurisdiction. Geoengineering could slow down the global water cycle As fossil fuel emissions continue to climb, reducing the amount of sunlight hitting the Earth would definitely have a cooling effect on surface temperatures. Pacific coast turning more acidic An international team of scientists surveying the waters of the continental shelf off the West Coast of North America has discovered for the first time high levels of acidified ocean water within 20 miles of the shoreline, raising concern for marine ecosystems from Canada to Mexico. Ocean acidification -- another undesired side effect of fossil fuel-burning Up to now, the oceans have buffered climate change considerably by absorbing almost one third of the worldwide emitted carbon dioxide. The oceans represent a significant carbon sink, but the uptake of excess CO2 stemming from man's burning of fossil fuels comes at a high cost: ocean acidification. Dissolved organic matter in the water column may influence coral health Bacterial communities endemic to healthy corals could change depending on the amount and type of natural and man-made dissolved organic matter in seawater, report researchers from The University of Texas at Austin Marine Science Institute and Mote Marine Laboratory in Sarasota, Florida. First map of threats to marine ecosystems shows all the world's oceans are affected As vast and far-reaching as the world's oceans are, every square kilometer is affected by human activities, according to a study in the journal Science by researchers at the University of North Carolina at Chapel Hill and others. New study shows extent of harmful human influences on global ecosystems More than 40 percent of the world's oceans are heavily impacted by human activities, including overfishing and pollution, according to a new study that will appear in tomorrow's peer-reviewed journal Science. Food source threatened by carbon dioxide Carbon dioxide increasing in the atmosphere may affect the microbial life in the sea, which could have an impact on a major food source, warned Dr Ian Joint at a Science Media Centre press briefing today. More Ocean Acidification News Articles |
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