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.

 

More warm-dwelling animals and plants as a result of climate change
Since 1980, populations of warm-dwelling species in Germany have increased. The trend is particularly strong among warm-dwelling terrestrial species, as shown by the most comprehensive study across ecosystems in this regard to date. The most obvious increases occurred among warm-dwelling birds, butterflies, beetles, soil organisms and lichens according to a new study. Thus, it appears possible that rising temperatures due to the climate change have had a widespread impact on the population trends of animals in the past 30 years.
Publ.Date : Mon, 20 Feb 2017 08:51:26 EST

Climate-driven permafrost thaw
In bitter cold regions like northwestern Canada, permafrost has preserved relict ground-ice and vast glacial sedimentary stores in a quasi-stable state. These landscapes therefore retain a high potential for climate-driven transformation, say researchers.
Publ.Date : Fri, 17 Feb 2017 16:10:21 EST

Local weather impacts melting of one of Antarctica's fastest-retreating glaciers
Local weather plays an important part in the retreat of the ice shelves in West Antarctica, according to new research.
Publ.Date : Fri, 17 Feb 2017 10:00:56 EST

Underwater seagrass beds dial back polluted seawater
Seagrass meadows -- bountiful underwater gardens that nestle close to shore and are the most common coastal ecosystem on Earth -- can reduce bacterial exposure for corals, other sea creatures and humans, according to new research.
Publ.Date : Thu, 16 Feb 2017 14:39:24 EST

Whale-ship collisions
Scientists and government officials met at the United Nations today to consider possible solutions to a global problem: how to protect whale species in their most important marine habitats that overlap with shipping lanes vital to the economies of many of the world's nations.
Publ.Date : Thu, 16 Feb 2017 10:39:38 EST

How an Ice Age paradox could inform sea level rise predictions
New research findings explain an Ice Age paradox and add to the mounting evidence that climate change could bring higher seas than most models predict.
Publ.Date : Wed, 15 Feb 2017 13:15:51 EST

Global ocean de-oxygenation quantified
The ongoing global change causes rising ocean temperatures and changes the ocean circulation. Therefore less oxygen is dissolved in surface waters and less oxygen is transported into the deep sea. This reduction of oceanic oxygen supply has major consequences for the organisms in the ocean. Scientists have now published the most comprehensive analysis on oxygen loss in the world's oceans and their cause so far.
Publ.Date : Wed, 15 Feb 2017 13:15:46 EST

Scientists report ocean data from under Greenland's Petermann Glacier
Based on data from the first ocean sensors deployed under Greenland's Petermann Glacier, researchers report that the floating ice shelf is strongly coupled, or tied, to the ocean below and to the adjacent Nares Strait. Warming temperatures recorded at the deepest ocean sensors match data from Nares Strait, which connects the Arctic and Atlantic oceans.
Publ.Date : Wed, 15 Feb 2017 12:11:15 EST

New pathway for Greenland meltwater to reach ocean
Cracks in the Greenland Ice Sheet let one of its aquifers drain to the ocean, new NASA research finds. The aquifers, discovered only recently, are unusual in that they trap large amounts of liquid water within the ice sheet. Until now, scientists did not know what happened to the water stored away in this reservoir -- the discovery will help fine tune computer models of Greenland's contribution to sea level rise.
Publ.Date : Wed, 15 Feb 2017 12:10:32 EST

Risk of rapid North Atlantic cooling in 21st century greater than previously estimated
The possibility of major climate change in the Atlantic region has long been recognized and has even been the subject of a Hollywood movie: The Day After Tomorrow. To evaluate the risk of such climate change, researchers developed a new algorithm to analyze the 40 climate models considered by the latest report from the Intergovernmental Panel on Climate Change (IPCC). Their findings raise the probability of rapid North Atlantic cooling during this century to nearly 50%.
Publ.Date : Wed, 15 Feb 2017 08:44:46 EST

Canadian glaciers now major contributor to sea level change, study shows
Ice loss from Canada's Arctic glaciers has transformed them into a major contributor to sea level change, new research has found. From 2005 to 2015, surface melt off ice caps and glaciers of the Queen Elizabeth Islands grew by an astonishing 900 percent.
Publ.Date : Wed, 15 Feb 2017 08:41:19 EST

Some marine creatures may be more resilient to harsher ocean conditions than expected
As the world continually emits carbon dioxide into the atmosphere, the oceans are taking a hit, absorbing some of it and growing more acidic. Among other effects, scientists have found that coral reefs and oyster hatcheries are deteriorating as a result. However, scientists studying a type of sea snail report a bit of bright news: The animal can adapt by rejiggering its shell-making process and other functions.
Publ.Date : Wed, 15 Feb 2017 08:41:03 EST

Beach bashing: Last year's El Niño resulted in unprecedented erosion of Pacific coastline
Last winter's El Niño might have felt weak to residents of Southern California, but it was in fact one of the most powerful climate events of the past 145 years. If such severe El Niño events become more common in the future as some studies suggest they might, the California coast -- home to more than 25 million people -- may become increasingly vulnerable to coastal hazards. And that's independent of projected sea level rise.
Publ.Date : Tue, 14 Feb 2017 13:05:25 EST

Banned chemicals from the '70s found in the deepest reaches of the ocean
Crustaceans from the deepest ocean trenches found to contain ten times the level of industrial pollution than the average earthworm, scientists have shown.
Publ.Date : Mon, 13 Feb 2017 13:15:01 EST

Marine bacteria produce an environmentally important molecule with links to climate
Scientists have discovered that tiny marine bacteria can synthesize one of Earth's most abundant sulfur molecules, which affects atmospheric chemistry and potentially climate. This molecule, dimethylsulfoniopropionate is an important nutrient for marine microorganisms and is the major precursor for the climate-cooling gas, dimethyl sulfide.
Publ.Date : Mon, 13 Feb 2017 13:14:52 EST

Are drones disturbing marine mammals?
Marine researchers have made sure that their research drones aren't disturbing their research subjects, shows a new report. And they're hoping that others will follow their example to help protect wildlife in the future.
Publ.Date : Mon, 13 Feb 2017 13:13:53 EST

How garbage patches form in world's oceans
A new study on how ocean currents transport floating marine debris is helping to explain how garbage patches form in the world's oceans. Researchers developed a mathematical model that simulates the motion of small spherical objects floating at the ocean surface.
Publ.Date : Mon, 13 Feb 2017 13:11:53 EST

Litter levels in the depths of the Arctic are on the rise
The Arctic has a serious litter problem: in just 10 years, the concentration of marine litter at a deep-sea station in the Arctic Ocean has risen 20-fold, according to researchers.
Publ.Date : Fri, 10 Feb 2017 13:09:49 EST

Cold plates and hot melts: New data on history of Pacific Ring of Fire
The movements of Earth's tectonic plates shape the face of our planet. The sinking of one plate beneath another causes volcanism and earthquakes. Scientists have been able to drill and investigate the origin of a subduction zone for the first time in 2014.
Publ.Date : Fri, 10 Feb 2017 13:09:21 EST

Sea-level change in Southeast Asia 6,000 years ago has implications for today
Sea level in Southeast Asia fluctuated wildly -- and naturally -- more than 6,000 years ago, twice rising nearly two feet in a period of about 200 years, report researchers.
Publ.Date : Fri, 10 Feb 2017 08:45:29 EST