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.
|Exploring vast 'submerged America,' marine scientists discover 500 bubbling methane vents|
Five hundred vents newly discovered off the US West Coast, each bubbling methane from Earth's belly, top a long list of revelations about "submerged America" being celebrated by leading marine explorers. The discoveries double to about 1,000 the number of such vents now known to exist along the continental margins of the USA. This fizzing methane is a powerful greenhouse gas if it escapes into the atmosphere; a clean burning fuel if safely captured.
Publ.Date : Thu, 20 Oct 2016 10:38:58 EDT
Magnetic oceans and electric Earth
Oceans might not be thought of as magnetic, but they make a tiny contribution to our planet's protective magnetic shield. Remarkably, ESA's Swarm satellites have not only measured this extremely faint field, but have also led to new discoveries about the electrical nature of inner Earth.
Publ.Date : Wed, 19 Oct 2016 11:08:07 EDT
Vast carbon residue of ocean life
The oceans hold a vast reservoir -- 700 billion tons -- of carbon, dissolved in seawater as organic matter, often surviving for thousands of years after being produced by ocean life. Yet, little is known about how it is produced, or how it's being impacted by the many changes happening in the ocean.
Publ.Date : Tue, 18 Oct 2016 19:41:01 EDT
Impact of the Fukushima accident on marine life, five years later
Five years ago, the largest single release of human-made radioactive discharge to the marine environment resulted from an accident at the Fukushima Daiichi Nuclear Power Plant in Japan. Approximately 80 percent of the fallout happened over the Pacific Ocean. A new study explores the environmental consequences in the marine environment of the accident. It outlines the status of current research about the impact of the fallout on plant and animal life and what remains to be done as the radioactivity continues to spread.
Publ.Date : Tue, 18 Oct 2016 14:13:09 EDT
Future of Antarctic marine protected areas at risk
Antarctica's surrounding waters are home to some of the healthiest marine ecosystems on Earth and support thriving populations of krill, seabirds, fish and whales. But efforts to establish a network of effective Marine Protected Areas (MPAs) in the Southern Ocean are being hobbled by political infighting and demands that prioritize fishing interests over conservation by members of the international consortium tasked with conserving the region, scientists say.
Publ.Date : Thu, 13 Oct 2016 15:32:30 EDT
Ocean rogue waves: A mystery unveiled?
Rogue waves are extremely high ocean waves that exceed the significant wave height by more than a factor of 2. Extreme waves are also very rare; less than one in 100,000 waves exceeds the rogue wave criterion. While their existence was long disputed throughout the 1990s, thousands of rogue waves have been recorded on oil rigs in the past 20 years. Nevertheless, the origin of rogue waves is still disputed, with a multitude of competing theories that fall into two basic categories: linear theories consider incidental random interference the origin of rogue waves.
Publ.Date : Thu, 13 Oct 2016 09:57:56 EDT
Charting riches in the ocean's depths
Researchers have previously estimated that the Norwegian continental shelf may contain a great wealth of minerals and metals. Now they suggest Norway take steps to clarify the industrial potential of mineral extraction from the seabed.
Publ.Date : Thu, 13 Oct 2016 09:53:17 EDT
Study reveals corals' influence on reef microbes
As they grow, corals are bathed in a sea of marine microbes, such as bacteria, algae, and viruses. While these extremely abundant and tiny microorganisms influence coral communities in a variety of ways, a new study reveals that corals also have an impact on the microbes in waters surrounding them.
Publ.Date : Wed, 12 Oct 2016 14:45:11 EDT
Salty snow could affect air pollution in the Arctic
In pictures, the Arctic appears pristine and timeless with its barren lands and icy landscape. In reality, the area is rapidly changing. Scientists are working to understand the chemistry behind these changes to better predict what could happen to the region in the future. One team reports that sea salt could play a larger role in the formation of local atmospheric pollutants than previously thought.
Publ.Date : Wed, 12 Oct 2016 13:26:22 EDT
Every school child knows that ice melts in the summer and freezes in the winter. But it turns out that the process isn’t that simple in the Arctic, where one type of sea ice structure, called an ice ridge, can actually get stronger in the summer due to melting.
Publ.Date : Mon, 10 Oct 2016 10:36:28 EDT
Assessing the effects of human-caused activities on marine mammals
Rising levels of noise in the ocean have been identified as a growing concern for the well-being of marine mammals, but other threats such as pollution, climate change, and prey depletion by fisheries may also harm marine mammals and influence their response to additional noise. Current knowledge and data are insufficient to determine what combination of factors cause the greatest concern, says a new report.
Publ.Date : Fri, 07 Oct 2016 15:51:01 EDT
Uranium levels in deep sea coral reveal new insights into how the major northern ice sheets retreated
Scientists examining naturally occurring uranium levels in ancient deep sea corals have discovered new insights into how the major northern ice sheets retreated during the last major deglaciation on Earth.
Publ.Date : Fri, 07 Oct 2016 15:49:16 EDT
As the climate warms, we are 'primed' for worse storms than Sandy
With the climate warming and the sea level rising, conditions are ripe for storms deadlier and more devastating than Sandy that put more people at risk, warns a geography professor who has served as the New Jersey state climatologist for 25 years.
Publ.Date : Thu, 06 Oct 2016 11:59:59 EDT
As oceans warm, coral reef fish might prefer to move rather than adapt
Scientists have new evidence that coral-reef fish -- who are capable of adapting to warmer temperatures brought about by global climate change -- will probably opt instead to relocate to cooler parts of the ocean. In experiments using a fish found in coral reefs around the world, the blue-green damselfish, researchers found that the fish were capable of adapting to living in water 2-4 degrees Celsius above their normal summer temperatures; however, when given the slightest chance, the fish moved to cooler water.
Publ.Date : Wed, 05 Oct 2016 13:52:16 EDT
'Great Pacific Garbage Patch' worse than expected
The Ocean Cleanup, a foundation developing advanced technologies to rid the oceans of plastic, has just presented the initial findings of its Aerial Expedition -- a series of low-speed, low-altitude flights across the Great Pacific Garbage Patch, the plastic accumulation zone between Hawaii and California. Using a modified C-130 Hercules aircraft, expert spotters, and an experimental array of plastic scanning equipment, the expedition aims to accurately measure the biggest and most harmful debris in the ocean.
Publ.Date : Wed, 05 Oct 2016 12:59:18 EDT
Gulf Stream slowdown tied to changes in Southern Hemisphere
The ocean circulation that is responsible for England's mild climate appears to be slowing down. The shift is not sudden or dramatic, as in the 2004 sci-fi movie "The Day After Tomorrow," but it is a real effect that has consequences for the climates of eastern North America and Western Europe.
Publ.Date : Wed, 05 Oct 2016 08:49:16 EDT
Earthquake risk: New fault discovered in earthquake-prone Southern California region
A swarm of nearly 200 small earthquakes that shook Southern California residents in the Salton Sea area last week raised concerns they might trigger a larger earthquake on the southern San Andreas Fault. At the same time, scientists published their recent discovery of a potentially significant fault that lies along the eastern edge of the Salton Sea.
Publ.Date : Tue, 04 Oct 2016 13:52:07 EDT
How fast will we need to adapt to climate change?
What would we do differently if sea level were to rise one foot per century versus one foot per decade? Until now, most policy and research has focused on adapting to specific amounts of climate change and not on how fast that climate change might happen. Using sea-level rise as a case study, researchers have developed a quantitative model that considers different rates of sea-level rise, in addition to economic factors, and shows how consideration of rates of change affect optimal adaptation strategies.
Publ.Date : Tue, 04 Oct 2016 11:31:30 EDT
Extensive deep coral reefs in Hawaii harbor unique species and high coral cover
Researchers has completed a comprehensive investigation of deep coral-reef environments throughout the Hawaiian Archipelago. The study spanned more than two decades and the researchers documented vast areas of 100% coral-cover at depths of 50-90 meters extending for tens of square kilometers, discovering that these deep-reef habitats are home to many unique species.
Publ.Date : Tue, 04 Oct 2016 09:04:43 EDT
Historical records may underestimate global sea level rise
New research shows that the longest and highest-quality records of historical ocean water levels may underestimate the amount of global average sea level rise that occurred during the 20th century.
Publ.Date : Mon, 03 Oct 2016 18:44:43 EDT