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.

 

Better understanding of the effect of melting ice sheets: Experts weigh in
Using a technique called structured expert judgment, researchers asked 22 ice sheet experts to estimate plausible ranges for future sea level rise due to the projected melting of each of the Greenland, West Antarctic and East Antarctic ice sheets under low and high future global temperature rise scenarios.
Publ.Date : Mon, 20 May 2019 15:30:10 EDT

How Earth's mantle is like a Jackson Pollock painting
New research paints an intricate picture of Earth's mantle as a geochemically diverse mosaic, far different from the relatively uniform lavas that eventually reach the surface.
Publ.Date : Mon, 20 May 2019 11:57:03 EDT

Nearly a quarter of West Antarctic ice is now unstable
In only 25 years, ocean melting has caused ice thinning to spread across West Antarctica so rapidly that a quarter of its glacier ice is now affected, according to a new study.
Publ.Date : Thu, 16 May 2019 11:46:01 EDT

How ocean melts Antarctic Ice Sheet
An innovative use of instruments that measure the ocean near Antarctica has helped scientists to get a clearer picture of how the ocean is melting the Antarctic ice sheet. Until now, most measurements in Antarctica were made during summer, leaving winter conditions, when the sea freezes over with ice, largely unknown.
Publ.Date : Wed, 15 May 2019 11:03:07 EDT

Impact of CO2 leakage through North Sea wells
Realistic estimates show that global warming can only be kept below 1.5 or 2 degrees Celsius if carbon dioxide is actively removed from the atmosphere. Storage beneath the seafloor is an option that has now been investigated intensively.
Publ.Date : Tue, 14 May 2019 11:03:14 EDT

Parents unknown: Mysterious larvae found in Panama's two oceans
Animals in hard-to-reach places, especially strange, 'unattractive,' animals, may completely escape our attention. We don't know what their role is in the environment. In fact, we don't even know they exist. New research may double the number of species of a little-known marine creature, based on DNA studies of its larvae.
Publ.Date : Tue, 14 May 2019 09:00:43 EDT

Plastic pollution harms the bacteria that help produce the oxygen we breathe
Ten percent of the oxygen we breathe comes from just one kind of bacteria in the ocean. Now laboratory tests have shown that these bacteria are susceptible to plastic pollution, according to a new study.
Publ.Date : Tue, 14 May 2019 08:17:38 EDT

How sea level rise affects birds in coastal forests
Saltwater intrusion changes coastal vegetation that provides bird habitat. Researchers found that the transition from forests to marshes along the North Carolina coast due to climate change could benefit some bird species of concern for conservation.
Publ.Date : Thu, 09 May 2019 14:28:15 EDT

Dexterous herring gulls learn new tricks to adapt their feeding habits
Observations of herring gulls have shown how the coastal birds have developed complicated behavior to 'skin' sea creatures to make them safe to eat. Researchers think this feeding habit may be a response to urbanization and changes in food availability.
Publ.Date : Thu, 09 May 2019 10:18:05 EDT

Low oxygen levels could temporarily blind marine invertebrates
Scientists have found that low oxygen levels in seawater could blind some marine invertebrates. The results are the first demonstration that vision in marine invertebrates is highly sensitive to the amount of available oxygen in the water.
Publ.Date : Wed, 08 May 2019 16:35:44 EDT

Tsunami signals to measure glacier calving in Greenland
Scientists have employed a new method utilizing tsunami signals to calculate the calving magnitude of an ocean-terminating glacier in northwestern Greenland, uncovering correlations between calving flux and environmental factors such as air temperature, ice speed, and ocean tides.
Publ.Date : Wed, 08 May 2019 09:37:48 EDT

Ocean activity is key controller of summer monsoons
New research finds ocean activity may control the strength and intensity of summer monsoons. The results could help researchers predict how monsoons will change with warming oceans.
Publ.Date : Tue, 07 May 2019 14:55:21 EDT

Shipwrecks off North Carolina, U.S. coast harbor tropical migrants
Shipwrecks and sunken structures off the North Carolina coast may act as stepping stones for tropical fish searching for favorable habitats at or beyond the edge of their normal geographic range. A study finds these fishes prefer artificial reefs over natural ones and suggests linked networks of these human-made structures could be used to aid the survival of the ecologically and economically important species.
Publ.Date : Mon, 06 May 2019 15:00:49 EDT

Seagrass' strong potential for curbing erosion
A new study shows how seagrass can help to protect shorelines against erosion and help to mitigate damage from rising sea level, potentially providing useful guidance for seagrass restoration efforts.
Publ.Date : Fri, 03 May 2019 11:27:47 EDT

New clues to coastal erosion
New research has uncovered a missing nutrient source in coastal oceans, which could promote better water quality and sand management on popular beaches. While the release of nutrients buried in the seabed 'feeds' coastal marine ecosystems, the latest research has found a new physical mechanism which erodes seabed sediment at depths up to 20 meters, well outside (between 10 km and 20 km) from the surf zone closer to shore.
Publ.Date : Thu, 02 May 2019 14:35:36 EDT

Tapping fresh water under the ocean has consequences
While offshore groundwater resources could be used for drinking, agriculture and oil recovery, new research suggests tapping into them could lead to adverse impacts onshore.
Publ.Date : Thu, 02 May 2019 14:34:08 EDT

Arsenic-breathing life discovered in the tropical Pacific Ocean
In low-oxygen parts of the ocean, some microbes are surviving by getting energy from arsenic. This holdover from the ancient Earth was not known to still exist in the open ocean.
Publ.Date : Thu, 02 May 2019 11:36:03 EDT

Chemical records in teeth confirm elusive Alaska lake seals are one of a kind
Lifelong chemical records stored in the canine teeth of an elusive group of seals show that the seals remain in freshwater their entire lives and are likely a distinct population from their relatives in the ocean. Their home territory, Iliamna Lake, is in the heart of the proposed Pebble Mine project.
Publ.Date : Wed, 01 May 2019 15:34:03 EDT

Scientists track giant ocean vortex from space
Researchers have found a new way to use satellites to monitor the Great Whirl, a massive whirlpool the size of Colorado that forms each year off the coast of East Africa, they report in a new study.
Publ.Date : Wed, 01 May 2019 11:45:49 EDT

New mathematical approach tested for the search of flight MH370
The 2014 disappearance of Malaysia Airlines Flight MH370 remains ones of the biggest mysteries in aviation. Recent efforts combining satellite data with a new mathematical approach, analyzing how debris moves around the ocean, aim to make headway in the search. Using Markov chain models, a team of researchers has narrowed down a potential crash location substantially north of the region where most search efforts have concentrated.
Publ.Date : Tue, 30 Apr 2019 11:11:42 EDT