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Preview: EurekAlert! - Oceanography

EurekAlert! - Oceanography



The premier online source for science news since 1996. A service of the American Association for the Advancement of Science.



Last Build Date: Sun, 11 Dec 2016 06:51:01 EST

Copyright: Copyright 2016 American Association for the Advancement of Science (AAAS); All rights reserved.
 



NASA spots Tropical Cyclone Vardah's off-center strength

Fri, 09 Dec 2016 00:00:00 EST

(NASA/Goddard Space Flight Center) NASA-NOAA's Suomi NPP satellite captured an image of Tropical Cyclone Vardah that showed strongest storms expanding west of the center.



Fishery bycatch rapidly driving Mexico's vaquita to extinction, new studies find

Thu, 08 Dec 2016 00:00:00 EST

(NOAA Fisheries West Coast Region) One of the most sophisticated networks of acoustic detectors ever developed for wildlife science has documented a devastating 34 percent per year decline of Mexico's critically endangered vaquita porpoise, according to a new study published today in the journal Conservation Biology. A companion paper published today in Conservation Letters uses both acoustic and visual surveys to estimate that only about 60 vaquitas remained, as of last year.



NASA sees Tropical Cyclone Vardah spinning near Andaman Islands

Thu, 08 Dec 2016 00:00:00 EST

(NASA/Goddard Space Flight Center) As NASA's Aqua satellite passed over the Bay of Bengal, Tropical Cyclone 05B was renamed Vardah and continued moving away from the Andaman and Nicobar Islands.



Mixed results

Thu, 08 Dec 2016 00:00:00 EST

(University of California - Santa Barbara) The 2016 Ocean Health Index shows no major declines -- and few real improvements.



Island volcano monitoring system tested at Nishinoshima

Thu, 08 Dec 2016 00:00:00 EST

(Kobe University) In October 2016 a Japanese research team tested a newly-developed island volcano monitoring system in the seas around Nishinoshima, where eruptions have been continuing since November 2013.



East Greenland ice sheet has responded to climate change over the last 7.5 million

Wed, 07 Dec 2016 00:00:00 EST

(DOE/Lawrence Livermore National Laboratory) Using marine sediment cores containing isotopes of aluminum and beryllium, a group of international researchers has discovered that East Greenland experienced deep, ongoing glacial erosion over the past 7.5 million years.



NASA sees Tropical Cyclone 05B form

Wed, 07 Dec 2016 00:00:00 EST

(NASA/Goddard Space Flight Center) NASA-NOAA's Suomi NPP satellite captured an image of newly formed Tropical Cyclone 05B in the Bay of Bengal, Northern Indian Ocean.



Most of Greenland ice melted to bedrock in recent geologic past, says study

Wed, 07 Dec 2016 00:00:00 EST

(The Earth Institute at Columbia University) Scientists have found evidence in a chunk of bedrock drilled from nearly two miles below the summit of the Greenland ice sheet that the sheet nearly disappeared for an extended time in the last million years or so. The finding casts doubt on assumptions that Greenland has been relatively stable during the recent geological past, and implies that global warming could tip it into decline more precipitously than previously thought.



Hulking hurricanes: Seeking greater accuracy in predicting storm strength

Tue, 06 Dec 2016 00:00:00 EST

(Office of Naval Research) To better predict tropical cyclone intensity, scientists sponsored by the Office of Naval Research (ONR) recently worked with the National Aeronautics and Space Administration (NASA) and National Oceanic and Atmospheric Administration to gather atmospheric data from storms that formed in the Atlantic Ocean in 2016.



Iowa State scientist uses clam shells to help build 1,000-year record of ocean climate

Tue, 06 Dec 2016 00:00:00 EST

(Iowa State University) Just like trees have growth rings that scientists can study for clues about past growing conditions, clam shells have growth increments that offer clues about past ocean conditions. Scientists -- including Iowa State's Alan Wanamaker -- have sorted and studied thousands of clam shells to build a 1,000-year record of ocean conditions and climate changes at a spot just off North Iceland. The scientists' findings were just published online by the journal Nature Communications.



Longest-living animal gives up ocean climate secrets

Tue, 06 Dec 2016 00:00:00 EST

(Cardiff University) A study of the longest-living animal on Earth, the quahog clam, has provided researchers with an unprecedented insight into the history of the oceans.



Researchers study sea spray to improve hurricane intensity forecasting

Mon, 05 Dec 2016 00:00:00 EST

(University of Miami Rosenstiel School of Marine & Atmospheric Science) A University of Miami (UM) Rosenstiel School of Marine and Atmospheric Science research team is studying sea spray to help improve forecasting of hurricanes and tropical cyclones. In a recent study, the scientists found that in high winds conditions the amount of large sea spray droplets (over 0.5 milimeters in diameter) generated is as much as 1000 times more than previously thought.



Tulane announces five finalists for $1 million Dead Zone Challenge

Mon, 05 Dec 2016 00:00:00 EST

(Tulane University) The National Advisory Committee for the Tulane Nitrogen Reduction Challenge has selected five finalists for its $1 million cash prize, which will be awarded to the team that presents the best solution to combat hypoxia -- the deadly deficiency of oxygen that creates annual 'dead zones' in the world's lakes and oceans.



Legendary Chesapeake scientist Walter Boynton awarded Mathias Medal

Mon, 05 Dec 2016 00:00:00 EST

(University of Maryland Center for Environmental Science) Walter Boynton, a fixture in the world of Chesapeake Bay science for more than 40 years and a longtime professor and estuarine ecologist at the University of Maryland Center for Environmental Science's Chesapeake Biological Laboratory, received the prestigious Mathias Medal Friday night to recognize his distinguished career of outstanding scientific research that has contributed to informed environmental policy in the Chesapeake Bay region.



Scientists shed light on the climate-changing desert dust fertilizing our oceans

Mon, 05 Dec 2016 00:00:00 EST

(University of Leeds) In the international study led by the University of Leeds, researchers have pinpointed how much phosphate 'fertilizer' is released from dust depending on atmospheric acid levels.



A new dead zone in the Indian Ocean could impact future marine nutrient balance

Mon, 05 Dec 2016 00:00:00 EST

(University of Southern Denmark) Population density and global warming may drain the last oxygen out of the Bay of Bengal.



NASA sees 'nada' strength left in Tropical Cyclone Nada

Thu, 01 Dec 2016 00:00:00 EST

(NASA/Goddard Space Flight Center) NASA's Aqua satellite flew over Tropical Cyclone Nada in the Northern Indian Ocean and infrared imagery showed that Nada had 'nada' in terms of strong thunderstorms.



NASA sees Tropical Storm Nada affected by wind shear

Wed, 30 Nov 2016 00:00:00 EST

(NASA/Goddard Space Flight Center) NASA-NOAA's Suomi NPP satellite revealed that wind shear was affecting Tropical Cyclone Nada in the Northern Indian Ocean.



Permafrost loss changes Yukon River chemistry with global implications

Wed, 30 Nov 2016 00:00:00 EST

(US Geological Survey) New USGS-led research shows that permafrost loss due to a rapidly warming Alaska is leading to significant changes in the freshwater chemistry and hydrology of Alaska's Yukon River Basin with potential global climate implications. Such permafrost degradation is already fundamentally transforming the way that high-latitude, Northern Hemisphere ecosystems function.



Prominent geophysicist Marcia McNutt named 30th DRI Nevada Medalist

Wed, 30 Nov 2016 00:00:00 EST

(Desert Research Institute) The Desert Research Institute (DRI) proudly announces the selection of Dr. Marcia McNutt, president of the National Academy of Sciences and chair of the National Research Council, as its 2017 DRI Nevada Medalist. Established in 1988 to acknowledge outstanding achievement in the fields of science and engineering, the award is the highest scientific honor in the state. The DRI Foundation will host special 30th anniversary events in Reno and Las Vegas in Sept., 2017.



Telescopic walls could rise on demand to stop flood waters

Tue, 29 Nov 2016 00:00:00 EST

(University at Buffalo) An University at Buffalo Ph.D. student received a $225,000 National Science Foundation grant to develop a system of telescoping concrete boxes to be used as 'rise on demand' flood walls. The walls can be installed below ground level, so as not to block any water views, and can be raised when the threat of flooding occurs.



New forecast tool helps ships avoid blue whale hotspots

Tue, 29 Nov 2016 00:00:00 EST

(NOAA Fisheries West Coast Region) Researchers from NOAA Fisheries, Oregon State University and the University of Maryland have combined years of blue whale tracking data with satellite observations of ocean conditions to develop the first system for predicting locations of blue whales off the West Coast. The system, called WhaleWatch, produces monthly maps of blue whale 'hotspots' to alert ships where there may be an increased risk of encountering these endangered whales.



Marine incentives programs may replace 'doom and gloom' with hope

Mon, 28 Nov 2016 00:00:00 EST

(Oregon State University) Incentives that are designed to enable smarter use of the ocean while also protecting marine ecosystems can and do work, and offer significant hope to help address the multiple environmental threats facing the world's oceans, researchers conclude in a new analysis. They may help address oceans that are becoming higher, warmer, stormier, more acidic, lower in dissolved oxygen and overfished.



NASA's Aqua satellite sees remnants of Tropical Cyclone Tokage

Mon, 28 Nov 2016 00:00:00 EST

(NASA/Goddard Space Flight Center) Tropical Cyclone Tokage fell apart after crossing the Philippines and moving into the South China Sea where wind shear battered the storm. NASA's Aqua satellite took a visible picture of the storm as it was being torn apart on Nov. 28.



Beaches devastated by extreme storms showing little signs of recovery, study suggests

Thu, 24 Nov 2016 00:00:00 EST

(University of Plymouth) UK beaches left decimated by the severe winter of 2013-14 have still not recovered almost three years later, according to new research led by the University of Plymouth.