Oceanography News

Courtesy of Science Daily

Welcome to Sea and Sky's Oceanography News. Here you can find links to the latest ocean news headlines in the topic of oceanography. Click on any yellow title below to view the full news article. The news article will open in a new browser window. Simply close the browser window when you are finished reading the article to return to the news article listing. You can use the "Click for More" link to go to a page with more news headlines.

 

The sound of a healthy reef
A new study will help researchers understand the ways that marine animal larvae use sound as a cue to settle on coral reefs. The study has determined that sounds created by adult fish and invertebrates may not travel far enough for larvae -- which hatch in open ocean -- to hear them, meaning that the larvae might rely on other means to home in on a reef system.
Publ.Date : Fri, 26 Aug 2016 14:23:24 EDT

Hiding in plain sight: Vast reef found hiding behind Great Barrier Reef
Scientists working with laser data have discovered a vast reef behind the familiar Great Barrier Reef. High-resolution seafloor data provided by LiDAR-equipped aircraft have revealed great fields of unusual donut-shaped circular mounds, each 200-300 meters across and up to 10 meters deep at the center.
Publ.Date : Fri, 26 Aug 2016 10:48:34 EDT

Volcanic eruption masked acceleration in sea level rise
The cataclysmic 1991 eruption of Mount Pinatubo in the Philippines masked the full impact of greenhouse gases on accelerating sea level rise, according to a new study.
Publ.Date : Fri, 26 Aug 2016 10:15:22 EDT

Microplastics discovered in the deep, open ocean
A unique study will provide valuable new insights into the concentrations of microplastics in the open ocean from surface to the sea bed, say scientists.
Publ.Date : Fri, 26 Aug 2016 08:40:34 EDT

X-raying the Earth with waves from stormy weather 'bombs'
Using a detection network based in Japan, scientists have uncovered a rare type of deep-earth tremor that they attribute to a distant North Atlantic storm called a 'weather bomb.' The discovery marks the first time scientists have observed this particular tremor, known as an S wave microseism.
Publ.Date : Thu, 25 Aug 2016 15:16:09 EDT

Arctic gives clues on worst mass extinction of life
Extreme global warming 252 million years ago caused a severe mass extinction of life on Earth. It took life up to 9 million years to recover. New study finds clues in the Arctic as to why this recovery took so long.
Publ.Date : Wed, 24 Aug 2016 11:11:00 EDT

Sugar hitches a ride on organic sea spray
Hitching a ride on fatty molecules, a "sticky" strategy shields sugary molecules from their soluble nature, and may explain the discrepancies between models and actual measurements of sea spray aerosol composition.
Publ.Date : Tue, 23 Aug 2016 10:20:15 EDT

New insights into the relationship between erosion and tectonics in the Himalayas
Earth's climate interacts with so called surface processes -- such as landslides or river erosion -- and tectonics to shape the landscape that we see. In some regions, the sheer force of these processes has led scientists to believe that they may even influence the development of tectonics. Scientists have now disproved this assumption.
Publ.Date : Tue, 23 Aug 2016 08:35:55 EDT

Reef castaways: Can coral make it across Darwin's 'impassable' barrier?
An international team of researchers have shown that vulnerable coral populations in the eastern tropical Pacific have been completely isolated from the rest of the Pacific Ocean for at least the past two decades.
Publ.Date : Tue, 23 Aug 2016 08:33:15 EDT

Antarctica's past shows region's vulnerability to climate change
Fresh understanding of West Antarctica has revealed how the region's ice sheet could become unstable in a warming world.
Publ.Date : Mon, 22 Aug 2016 11:18:01 EDT

NASA monitors the 'new normal' of sea ice
This year's melt season in the Arctic Ocean and surrounding seas started with a bang, with a record low maximum extent in March and relatively rapid ice loss through May. One NASA sea ice scientist describes this as 'the new normal.'
Publ.Date : Fri, 19 Aug 2016 11:42:13 EDT

Pacific sea level predicts global temperature changes
Sea level changes in the Pacific Ocean can be used to estimate future global surface temperatures, according to a new paper. Scientists knew both the rate at which global surface temperature is rising and sea level in the Pacific varied, but had not connected the two phenomena. The researchers estimate by the end of 2016, average surface temperature will increase up to 0.5 F (0.28 C) more than in 2014.
Publ.Date : Thu, 18 Aug 2016 21:27:59 EDT

Recent connection between North and South America reaffirmed
Long ago, one great ocean flowed between North and South America. When the Isthmus of Panama joined the continents, it also separated the Atlantic from the Pacific Ocean. If this took place much earlier than the accepted date of 3 million years ago as recently asserted by some, the implications for both land and sea life would be revolutionary. A new paper firmly set the date at 2.8 million years ago.
Publ.Date : Wed, 17 Aug 2016 14:27:51 EDT

Climate change alters the rules of sperm competition in the sea
Increasing ocean acidification, brought about by humanmade carbon emissions, reduces sperm performance in a species of sea urchin, say scientists. The impact of climate change on global seawater conditions could change the rules of sperm competition for many important marine species, the pioneering new study has shown.
Publ.Date : Wed, 17 Aug 2016 09:06:12 EDT

Sea ice strongly linked to climate change in past 90,000 years
Expansion and retreat of sea ice varied consistently in pace with rapid climate changes through past 90,000 years, a new study shows.
Publ.Date : Tue, 16 Aug 2016 11:10:03 EDT

New Antarctic ice discovery aids future climate predictions
A team of scientists has discovered a 65 percent reduction in sea ice during the last interglacial period around 128,000 years ago.
Publ.Date : Tue, 16 Aug 2016 08:47:38 EDT

Researcher uncovers 340 million year-old oceanic crust in the Mediterranean Sea using magnetic data
Results of a new study shed new light on the tectonic architecture and evolution of the eastern Mediterranean Sea, and have important implications on various geodynamic processes, say researchers.
Publ.Date : Mon, 15 Aug 2016 11:49:33 EDT

Tropical sea urchins caught between a rock and a hot place
The balmy waters of the Caribbean could turn into a deadly heat trap for countless tiny creatures. Authors of a new study have discovered that microscopic sea urchin eggs and larvae may suffer stunting or death when the water temperature spikes just a couple of degrees above normal, adding to the impact of climate change in already warm tropical oceans.
Publ.Date : Mon, 15 Aug 2016 09:46:25 EDT

Caught in the act: Coral's bleaching behavior
Coral researchers have for the first time captured the specific behavior of a coral as it's bleaching. While scientists have known for some time that coral bleaching occurs when the relationship between the coral and their Symbiodinium breaks down as ocean temperatures rise, new research show for the first time how this coral removes the algae.
Publ.Date : Fri, 12 Aug 2016 10:38:06 EDT

Global warming's next surprise: Saltier beaches
Batches of sand from a beach on the Delaware Bay are yielding insights into the powerful impact of temperature rise and evaporation along the shore that are in turn challenging long-held assumptions about what causes beach salinity to fluctuate in coastal zones that support a rich network of sea creatures and plants.
Publ.Date : Thu, 11 Aug 2016 14:26:47 EDT