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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: Wed, 24 May 2017 14:51:01 EDT

Copyright: Copyright 2017 American Association for the Advancement of Science (AAAS); All rights reserved.

The birth and death of a tectonic plate

Wed, 24 May 2017 00:00:00 EDT

(University of California - Santa Barbara) Geophysicist Zachary Eilon developed a new technique to investigate the underwater volcanoes that produce Earth's tectonic plates

Going with the flow: The forces that affect species' movements in a changing climate

Tue, 23 May 2017 00:00:00 EDT

(Hokkaido University) Scientists have developed a simple metric to capture the directional agreement between ocean currents and warming, revealing how ocean currents affect the range shift of marine biota in a changing climate.

NASA sees powerful storms with advancing monsoon in Bay of Bengal

Tue, 23 May 2017 00:00:00 EDT

(NASA/Goddard Space Flight Center) Storms associated with the advancing monsoon in the Northern Indian Ocean's Bay of Bengal were analyzed by NASA with the GPM or Global Precipitation Measurement mission core satellite.

Researchers untangle causes of differences in East Coast sea level rise

Tue, 23 May 2017 00:00:00 EDT

(The Earth Institute at Columbia University) For years, scientists have been warning of a so-called 'hot spot' of accelerated sea-level rise along the northeastern US coast, but understanding the causes has proven challenging. Now an upcoming paper offers the first comprehensive model for sorting this out.

Should you pee on a jellyfish sting? (video)

Tue, 23 May 2017 00:00:00 EDT

(American Chemical Society) We all know the evils that come from a run-in with a jellyfish's tentacles. But thankfully, we can resort to peeing on a sting to make the pain go away -- or can we? Filmed at San Francisco's Aquarium of the Bay, the latest Reactions episode explains the fearsome chemistry of jellyfish stings, and debunks this age-old beach myth:

Two missing World War II B-25 bombers documented by Project Recover off Papua New Guinea

Tue, 23 May 2017 00:00:00 EDT

(University of California - San Diego) Two B-25 bombers associated with American servicemen missing in action from World War II were recently documented in the waters off Papua New Guinea by Project Recover -- a collaborative team of marine scientists, archaeologists and volunteers who have combined efforts to locate aircraft and associated MIAs from World War II.

NASA adds up record Australia rainfall

Mon, 22 May 2017 00:00:00 EDT

(NASA/Goddard Space Flight Center) Over the week of May 15, extreme rainfall drenched northeastern Australia and NASA data provided a look at the record totals.

Scientists begin to unlock secrets of deep ocean color from organic matter

Wed, 17 May 2017 00:00:00 EDT

(University of Maryland Center for Environmental Science) About half of atmospheric carbon dioxide is fixed by ocean's phytoplankton through a process called photosynthesis. A large portion of biologically fixed carbon is formed by picocyanobacteria at the sea surface and then transported to the deep ocean. But what remains a mystery is how colored dissolved organic matter which originates from plant detritus (either on land or at sea) makes it into the deep ocean. A team of scientists has potentially found a viable marine source of this colored material.

Dams are major driver of global environmental change

Wed, 17 May 2017 00:00:00 EDT

(University of Waterloo) Water reservoirs created by damming rivers could have significant impacts on the world's carbon cycle and climate system that aren't being accounted for, a new study concludes.

New study documents aftermath of a supereruption, and expands size of Toba magma system

Tue, 16 May 2017 00:00:00 EDT

(Oregon State University) The rare but spectacular eruptions of supervolcanoes can cause massive destruction and affect climate patterns on a global scale for decades -- and a new study has found that these sites also may experience ongoing, albeit smaller eruptions for tens of thousands of years after.

Refining the ocean's thermometer

Tue, 16 May 2017 00:00:00 EDT

(University of California - Davis) The chemistry of shells of plankton called foraminifera are a record of past climate. Recent experiments led by UC Davis scientists show magnesium levels vary in foram shells due to different growth rates during daily light/dark cycles.

Travel distances of juvenile fish key to better conservation

Tue, 16 May 2017 00:00:00 EDT

(Woods Hole Oceanographic Institution) Marine reserves -- sections of the ocean where fishing is prohibited -- promote coral reef sustainability by preventing overfishing and increasing fish abundance and diversity. But to be effective, they need to be sized right, and in a way that accounts for how far juvenile fish travel away from their parents after spawning.

Arctic warming to increase Eurasian extreme cold events

Mon, 15 May 2017 00:00:00 EDT

(Institute of Atmospheric Physics, Chinese Academy of Sciences) Scientists from the CAS Institute of Atmospheric Physics investigated the impact of Ural blocking (UB) on Eurasian extreme cold events in response to Arctic warming and obtained some interesting findings.

Rise of aggressive reef predator may impede sea urchin recovery, study finds

Mon, 15 May 2017 00:00:00 EDT

(University of California - San Diego) A new study suggests that an aggressive reef competitor -- the Threespot Damselfish -- may have impeded the recovery of Caribbean long-spined sea urchin populations after a mysterious disease outbreak caused a massive die-off of these animals over three decades ago.

What could be the importance of marine and coastal cultural ecosystem services

Mon, 15 May 2017 00:00:00 EDT

(Pensoft Publishers) Cultural ecosystem services reflect physical and cognitive interactions between humans and nature, and are increasingly recognised for providing experiences, capabilities and many other benefits to human societies. While oceans, seas, and coasts sustain a great proportion of the human population, cultural ecosystem services provided by these areas still remain largely unexplored. A new study published in the open access journal One Ecosystem analyses and maps case studies worldwide and pinpoints priorities to move research forward.

Heat on for Australia's Great Barrier Reef when global temperatures hit 1.5C

Mon, 15 May 2017 00:00:00 EDT

(University of New South Wales) Scientists from the ARC Centre of Excellence for Climate System Science have modelled how extremes in precipitation, drought, extreme heat and ocean temperatures will change in Australia at global temperatures 1.5°C and 2°C above pre-industrial conditions. It doesn't bode well for Australia's Great Barrier Reef.

No escaping ocean plastic: 37 million bits of litter on one of world's remotest islands

Mon, 15 May 2017 00:00:00 EDT

(University of Tasmania - Institute for Marine and Antarctic Studies) The beaches of one of the world's most remote islands have been found to be polluted with the highest density of plastic debris reported anywhere on the planet, in a study published in the prestigious US scientific journal Proceedings of the National Academy of Sciences.Despite being uninhabited and located more than 5,000 kilometers from the nearest major population center, Henderson Island is littered with an estimated 37.7 million pieces of plastic.

NASA sees intensifying Tropical Cyclone Ella now heading west

Fri, 12 May 2017 00:00:00 EDT

(NASA/Goddard Space Flight Center) Tropical Cyclone Ella is intensifying and NASA observed heavy rainfall in the storm. Ella is now expected to pass to the north of Fiji which is good news for the island nation.

The geoscience hotspot

Fri, 12 May 2017 00:00:00 EDT

(Geological Society of America) Geoscientists from the North American Cordilleran region will convene in Honolulu, Hawai'i, on May 23-25, to discuss new science, expand on existing science, and explore the unique geologic features of the region. Topics include hazards, geoarchaeology, water resources and water quality, geothermal exploration, and the application of emerging technologies to the geosciences. The meeting will also address the geology of Mars and volcanism on other planets.

Jurassic drop in ocean oxygen lasted a million years

Fri, 12 May 2017 00:00:00 EDT

(University of Exeter) Dramatic drops in oceanic oxygen, which cause mass extinctions of sea life, come to a natural end -- but it takes about a million years.

RAS funds five public engagement projects to mark 200th anniversary

Fri, 12 May 2017 00:00:00 EDT

(Royal Astronomical Society) Planet walks and planetaria in Galway, tactile stargazing for people with sight loss, adventures in space for girls, astronomy and geophysics for rehabilitation of prisoners, and a science trailer for Cornwall make up five new public engagement projects supported by more than £400,000 from the Royal Astronomical Society. The projects, backed by the RAS 200: Sky & Earth program that celebrates the run up to the Society's bicentenary in 2020, were announced today (Friday, May 12) at the RAS AGM in London.

NASA analyzed powerful Tropical Cyclone Donna's extreme rainfall

Thu, 11 May 2017 00:00:00 EDT

(NASA/Goddard Space Flight Center) Tropical Cyclone Donna was one of the most powerful out-of-season tropical cyclones ever recorded in the southern hemisphere and generated extreme amounts of rainfall along its path. NASA analyzed and mapped rainfall totals generated by the storm.

Bacteria living in marine sponge produce toxic compounds found in man-made products

Thu, 11 May 2017 00:00:00 EDT

(National Science Foundation) Researchers have discovered for the first time that a common marine sponge hosts bacteria that specialize in the production of toxic compounds nearly identical to man-made fire retardants, a finding that could help scientists better understand the human health implications of these common additives.

NASA caught Tropical Storm Adrian quickly losing steam

Thu, 11 May 2017 00:00:00 EDT

(NASA/Goddard Space Flight Center) The first tropical storm of the Eastern Pacific Ocean season was already losing steam when the Suomi NPP satellite passed overhead the day it formed. By the next day, May 11, Tropical Storm Adrian weakened to a remnant low pressure area.

Tropical Cyclone Ella wrapped in NASA imagery

Thu, 11 May 2017 00:00:00 EDT

(NASA/Goddard Space Flight Center) Tropical Cyclone Ella has large bands of thunderstorms wrapping around the center and from the east of center in imagery from the NASA-NOAA Suomi NPP satellite.