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.

 

Sea-surface temps during last interglacial period like modern temps
Sea-surface temperatures during the last interglaciation period were like those of today, a new study reports. The trend is worrisome, as sea levels during the last interglacial period were between six and nine meters above their present height.
Publ.Date : Thu, 19 Jan 2017 14:33:31 EST

Regional sea-level scenarios: Helping US Northeast plan for faster-than-global rise
Sea level in the Northeast and in some other US regions will rise significantly faster than the global average, according to a new report. In a worst-case scenario, global sea level could rise by about 8 feet by 2100, according to the report, which lays out six scenarios intended to inform national and regional planning.
Publ.Date : Thu, 19 Jan 2017 11:10:04 EST

New study will help find the best locations for thermal power stations in Iceland
A new research article gives indications of the best places in Iceland to build thermal power stations.
Publ.Date : Thu, 19 Jan 2017 08:38:19 EST

Massive sea lion, fur seal hunting in the Patagonian coasts is altering Southern Atlantic Ocean ecosystems
Sea lion hunting by the Europeans at the Atlantic coasts of South America – it started in the 19th Century and continued up to the second half of the 20th century in Argentina and Uruguay – changed its nutrition guidelines of these pinnipeds as well as the structure of the coastal trophic network, according to new research.
Publ.Date : Wed, 18 Jan 2017 12:56:26 EST

Seafloor valleys discovered below West Antarctic glaciers
Glaciologists have uncovered large valleys in the ocean floor beneath some of the massive glaciers flowing into the Amundsen Sea in West Antarctica. Carved by earlier advances of ice during colder periods, the troughs enable warm, salty water to reach the undersides of glaciers, fueling their increasingly rapid retreat.
Publ.Date : Wed, 18 Jan 2017 12:52:26 EST

Vitamin B-12, and a knockoff version, create complex market for marine vitamins
Vitamin B-12 exists in two different, incompatible forms in the oceans. An organism thought to supply essential vitamin B-12 in the marine environment is actually churning out a knockoff version.
Publ.Date : Wed, 18 Jan 2017 10:39:06 EST

New reconstruction of an ancient ice sheet
A new model reconstruction shows in exceptional detail the evolution of the Eurasian ice sheet during the last ice age. This can help scientists understand how climate and ocean warming can affect the remaining ice masses on Earth.
Publ.Date : Wed, 18 Jan 2017 08:24:19 EST

Signs of hope for endangered sea turtles
Bones from dead turtles washed up on Mexican beaches indicate that Baja California is critical to the survival of endangered North Pacific loggerhead sea turtles, which travel some 7,500 miles from their nesting sites in Japan to their feeding grounds off the coast of Mexico.
Publ.Date : Tue, 17 Jan 2017 13:59:03 EST

How China is poised for marine fisheries reform
China has introduced an unprecedented policy platform for stewarding its fisheries and other marine resources. In order to achieve a true paradigm shift a team of international scientists from within and outside of China recommend major institutional reform.
Publ.Date : Mon, 16 Jan 2017 16:05:37 EST

Genome sequence of polar alga explains evolutionary adaptation to extreme variable climate
An international team of researchers has identified the genetic mutations which allowed microalgae (phytoplankton) from the Southern Ocean to adapt to extreme and highly variable climates -- a step towards understanding how polar organisms are impacted by climate change.
Publ.Date : Mon, 16 Jan 2017 12:18:18 EST

Tracking Antarctic adaptations in diatoms
In the Antarctic Ocean, large populations of the diatom Fragillariopsis cylindrus dominate the phytoplankton communities. To learn more about how F. cylindrus adapted to its extremely cold environment, a team of researchers conducted a comparative genomic analysis involving three diatoms. The results provided insights into the genome structure and evolution of F. cylindrus, as well as this diatom's role in the Southern Ocean.
Publ.Date : Mon, 16 Jan 2017 12:18:09 EST

Changing atmospheric conditions may contribute to stronger ocean waves in Antarctica
A new study provides important details on the extent of sea ice, which can protect ice shelves from the impacts of ocean storms, in the Antarctic Peninsula.
Publ.Date : Fri, 13 Jan 2017 15:56:11 EST

How the darkness and the cold killed the dinosaurs
Climate scientists now reconstructed how tiny droplets of sulfuric acid formed high up in the air after the well-known impact of a large asteroid and blocking the sunlight for several years, had a profound influence on life on Earth.
Publ.Date : Fri, 13 Jan 2017 13:30:43 EST

Ocean acidification to hit West Coast Dungeness crab fishery, new assessment shows
The acidification of the ocean expected as seawater absorbs increasing amounts of carbon dioxide from the atmosphere will reverberate through the West Coast's marine food web, but not necessarily in the ways you might expect, new research shows.
Publ.Date : Thu, 12 Jan 2017 14:13:20 EST

This bay in Scandinavia has world record in carbon storing
Forests are potent carbon sinks, but also the oceans' seagrasses can store enormous amounts of carbon. A little bay in Denmark stores a record amount of carbon. Here is the secret.
Publ.Date : Thu, 12 Jan 2017 11:08:01 EST

Release of water shakes Pacific plate at depth
A team of seismologists analyzing the data from 671 earthquakes that occurred between 30 and 280 miles beneath the Earth's surface in the Pacific Plate as it descended into the Tonga Trench were surprised to find a zone of intense earthquake activity in the downgoing slab. The pattern of the activity along the slab provided strong evidence that the earthquakes are sparked by the release of water at depth.
Publ.Date : Wed, 11 Jan 2017 15:14:28 EST

Pretty in pink: Some algae like it cold
Scientific efforts are aimed at learning more about the effects of pink snow algae on glaciers and snowfields covering Pacific Northwest stratovolcanoes.
Publ.Date : Tue, 10 Jan 2017 15:13:54 EST

Warmer West Coast ocean conditions linked to increased risk of toxic shellfish
Hazardous levels of domoic acid, a natural toxin that accumulates in shellfish, have been linked to warmer ocean conditions in waters off Oregon and Washington for the first time, report scientists.
Publ.Date : Tue, 10 Jan 2017 12:06:53 EST

Rapid Arctic warming has in the past shifted Southern Ocean winds
Ice core records from the two poles show that during the last ice age, sharp spikes in Arctic temperatures shifted the position of winds around Antarctica.
Publ.Date : Tue, 10 Jan 2017 10:16:22 EST

Short-lived greenhouse gases cause centuries of sea-level rise
Even if there comes a day when the world completely stops emitting greenhouse gases into the atmosphere, coastal regions and island nations will continue to experience rising sea levels for centuries afterward, according to a new study.
Publ.Date : Mon, 09 Jan 2017 19:03:25 EST