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.

 

New study describes 200 million years of geological evolution
200 million years of geological evolution of a fault in Earth’s crust has recently been dated. These new findings may be used to shed light on poorly understood pathways for methane release from the heart of our planet.
Publ.Date : Thu, 01 Dec 2016 09:28:17 EST

Permafrost loss changes Yukon River chemistry with global implications
Permafrost loss due to a rapidly warming Alaska is leading to significant changes in the freshwater chemistry and hydrology of Alaska's Yukon River Basin with potential global climate implications, report scientists.
Publ.Date : Wed, 30 Nov 2016 13:43:01 EST

New forecast tool helps ships avoid blue whale hotspots
Scientists have long used satellite tags to track blue whales along the West Coast, learning how the largest animals on the planet find enough small krill to feed on to support their enormous size. Now researchers have combined that trove of tracking data with satellite observations of ocean conditions to develop the first system for predicting locations of blue whales off the West Coast. The system, called WhaleWatch, produces monthly maps of blue whale "hotspots" to alert ships where there may be an increased risk of encountering these endangered whales.
Publ.Date : Tue, 29 Nov 2016 15:02:09 EST

Ancient rocks hold evidence for life before oxygen
Somewhere between Earth's creation and where we are today, scientists have demonstrated that some early life forms existed just fine without any oxygen. The 2.52 billion-year-old sulfur-oxidizing bacteria are exceptionally large, spherical-shaped, smooth-walled microscopic structures much larger than most modern bacteria, but similar to some modern single-celled organisms that live in deepwater sulfur-rich ocean settings today, where even now there are almost no traces of oxygen.
Publ.Date : Tue, 29 Nov 2016 14:48:40 EST

NASA's ISS-RapidScat Earth science mission ends
NASA's International Space Station Rapid Scatterometer (ISS-RapidScat) Earth science instrument has ended operations following a successful two-year mission aboard the space station. The mission launched Sept. 21, 2014, and had recently passed its original decommissioning date.
Publ.Date : Tue, 29 Nov 2016 10:39:36 EST

Marine incentives programs may replace 'doom and gloom' with hope
Incentives that are designed to enable smarter use of the ocean while also protecting marine ecosystems can and do work, and offer significant hope to help address the multiple environmental threats facing the world’s oceans, researchers conclude in a new analysis.
Publ.Date : Mon, 28 Nov 2016 15:22:56 EST

Biggest exposed fault on Earth discovered
Geologists have for the first time seen and documented the Banda Detachment fault in eastern Indonesia and have worked out how it formed.
Publ.Date : Mon, 28 Nov 2016 13:29:28 EST

Toxic 'marine snow' can sink quickly, persist at ocean depths
A specific neurotoxin can persist and accumulate in “marine snow” formed by the algae Pseudo-nitzschia, and this marine snow can reach significant depths quickly, report investigators.
Publ.Date : Mon, 28 Nov 2016 12:51:14 EST

West Antarctic Ice Shelf Breaking Up From the Inside Out
A key glacier in Antarctica is breaking apart from the inside out, suggesting that the ocean is weakening ice on the edges of the continent.
Publ.Date : Mon, 28 Nov 2016 08:53:41 EST

Gulfstream may strengthen with more precipitation in the far north
Using a new theory, a researcher shows that more freshwater in the Arctic may strengthen the Gulfstream’s extension into the polar regions – the opposite of what has generally been anticipated with future climate change.
Publ.Date : Thu, 24 Nov 2016 08:17:51 EST

Huge reduction in African dust plume impacted climate 11,000 years ago
Scientists have discovered a huge reduction in an African dust plume that led to more Saharan monsoons 11,000 years ago, suggests a new report.
Publ.Date : Wed, 23 Nov 2016 14:36:43 EST

Thinning, retreat of West Antarctic Glacier began in 1940s
The present thinning and retreat of Pine Island Glacier in West Antarctica is part of a climatically forced trend that was triggered in the 1940s, new research by an international team shows.
Publ.Date : Wed, 23 Nov 2016 14:02:43 EST

Oceans act as a 'heat sink': No global warming ‘hiatus’
The so-called global warming "hiatus" phenomenon -- the possible temporary slowdown of the global mean surface temperature (GMST) trend said to have occurred from 1998 to 2013 -- simply represents a redistribution of energy within Earth system, which includes the land, atmosphere and the ocean. New research points to the prominent role global ocean played in absorbing extra heat from the atmosphere by acting as a "heat sink" as an explanation for the observed decrease in a key indicator of climate change.
Publ.Date : Tue, 22 Nov 2016 18:24:58 EST

Ocean acidification accelerates erosion of coral reefs
Scientists studying naturally high carbon dioxide coral reefs in Papua New Guinea found that erosion of essential habitat is accelerated in these highly acidified waters, even as coral growth continues to slow. The new research has important implications for coral reefs around the world as the ocean become more acidic as a result of global change.
Publ.Date : Tue, 22 Nov 2016 12:38:45 EST

Deep sea coral in North Atlantic faces threat from climate change
North Atlantic coral populations -- key to supporting a variety of sea life -- are under threat from climate change, a study suggests.
Publ.Date : Tue, 22 Nov 2016 12:28:11 EST

What happens to oil after a spill?
Very little is known about what happens to oil in the ocean after an oil spill and what happens to it once a chemical dispersant has been applied. New research summarizes what is known and what important knowledge gaps remain. Investigators note that there is a great need to study extracellular polymeric substances (EPS), which are polymers released into the environment by microbes such as bacteria and phytoplankton in response to environmental stresses.
Publ.Date : Tue, 22 Nov 2016 08:05:48 EST

How to monitor global ocean warming without harming whales
Most of the extra heat trapped by human-generated emissions is ending up in the oceans. But tracking the temperature of the world's oceans to monitor the change is trickier than it might seem. While satellites monitor surface temperature, measuring the ocean's interior temperature poses a logistical challenge. Now an oceanographer has proposed a method to cheaply monitor temperature throughout the depths of the world's oceans without harming marine mammals.
Publ.Date : Mon, 21 Nov 2016 17:39:20 EST

Marine microalgae, a new sustainable food and fuel source
Taken from the bottom of the marine food chain, microalgae may soon become a top-tier contender to combat global warming, climate change and food insecurity.
Publ.Date : Mon, 21 Nov 2016 13:16:38 EST

Ocean acidification study offers warnings for marine life, habitats
Acidification of the world’s oceans could drive a cascading loss of biodiversity in some marine habitats, according to new research.
Publ.Date : Mon, 21 Nov 2016 13:06:38 EST

Most meltwater in Greenland fjords likely comes from icebergs, not glaciers
Icebergs contribute more meltwater to Greenland's fjords than previously thought, losing up to half of their volume as they move through the narrow inlets, according to new research.
Publ.Date : Mon, 21 Nov 2016 11:51:20 EST