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.


Runaway ice loss in Antarctica
By studying rocks at different elevations beside the East Antarctic Ice Sheet, scientists have concluded that a period of rapid glacier thinning occurred in the recent geological past, and persisted for several centuries.
Publ.Date : Mon, 30 Nov 2015 08:46:31 EST

Rapid plankton growth in ocean seen as sign of carbon dioxide loading
A microscopic marine alga is thriving in the North Atlantic to an extent that defies scientific predictions, suggesting swift environmental change as a result of increased carbon dioxide in the ocean.
Publ.Date : Fri, 27 Nov 2015 10:17:24 EST

Rapid plankton growth in ocean seen as sign of carbon dioxide loading
A microscopic marine alga is thriving in the North Atlantic to an extent that defies scientific predictions, suggesting swift environmental change as a result of increased carbon dioxide in the ocean.
Publ.Date : Thu, 26 Nov 2015 16:50:42 EST

Great Barrier Reef protecting against landslides, tsunamis
The world-famous Australian reef is providing an effective barrier against landslide-induced tsunamis, new research shows. An underwater landslide has been found to have occurred some 20,000 years ago, causing a tsunami. Similar submarine landslides could occur without our knowledge but the Great Barrier Reef can absorb some of that potential wave energy.
Publ.Date : Wed, 25 Nov 2015 10:47:53 EST

Big data reveals glorious animation of bottom water
A remarkably detailed animation of the movement of the densest and coldest water in the world around Antarctica has been produced using data generated on Australia's most powerful supercomputer, Raijin.
Publ.Date : Tue, 24 Nov 2015 12:20:52 EST

How Earth's Pacific plates collapsed
Scientists drilling into the ocean floor have, for the first time, found out what happens when one tectonic plate first gets pushed under another. The international expedition drilled into the Pacific ocean floor and found distinctive rocks formed when the Pacific tectonic plate changed direction and began to plunge under the Philippine Sea Plate about 50 million years ago.
Publ.Date : Tue, 24 Nov 2015 12:20:45 EST

Climate study finds evidence of global shift in the 1980s
Planet Earth experienced a global climate shift in the late 1980s on an unprecedented scale, fueled by anthropogenic warming and a volcanic eruption, according to new research. Scientists say that a major step change, or 'regime shift,' in Earth's biophysical systems, from the upper atmosphere to the depths of the ocean and from the Arctic to Antarctica, was centered around 1987, and was sparked by the El Chichón volcanic eruption in Mexico five years earlier.
Publ.Date : Tue, 24 Nov 2015 08:15:17 EST

Mountain ranges evolve, respond to Earth's climate, study shows
Erosion caused by glaciation during ice ages can, in the right circumstances, wear down mountains faster than plate tectonics can build them, groundbreaking new research has shown.
Publ.Date : Mon, 23 Nov 2015 20:19:45 EST

Protection of our marine life needs more than marine protected areas, we need to make it resilient
Management of the world’s marine habitats needs to look beyond only Marine Protected Areas and put achieving ecosystem resilience at the top of the agenda, according to new research.
Publ.Date : Mon, 23 Nov 2015 10:36:34 EST

Marine airgun noise could cause turtle trauma
Scientists are warning of the risks that seismic surveys may pose to sea turtles. Widely used in marine oil and gas exploration, seismic surveys use airguns to produce sound waves that penetrate the sea floor to map oil and gas reserves.
Publ.Date : Mon, 23 Nov 2015 10:19:05 EST

Whiffs from cyanobacteria likely responsible for Earth's oxygen
Earth's oxygen-rich atmosphere emerged in whiffs from a kind of cyanobacteria in shallow oceans around 2.5 billion years ago, according to new research.
Publ.Date : Fri, 20 Nov 2015 18:26:20 EST

Climate change: Warm water is mixing up life in the Arctic
The warming of arctic waters in the wake of climate change is likely to produce radical changes in the marine habitats of the High North. This is indicated by data from long-term observations in the Fram Strait.
Publ.Date : Fri, 20 Nov 2015 10:37:30 EST

New camouflage mechanism fish use in the open ocean
Fish have a remarkable way to hide from their predators using camouflage techniques. A new study shows that fish scales have evolved to not only reflect light, but to also scramble polarization. Researchers identified the tissue structure that fish evolved to do this, which could be an analog to develop new materials to help hide objects in the water.
Publ.Date : Thu, 19 Nov 2015 16:05:10 EST

How to catch a small squid? First records for the Gulf of California and southwest Mexico
Often avoiding sampling gear due to their capability to detect movements and swim their way out of the nets fast enough, the small squids living in the open-ocean zone have long gone under-researched. The present study seems to provide first and new distributional records of five such species for the Gulf of California and the southwestern coast of Mexico.
Publ.Date : Wed, 18 Nov 2015 15:53:12 EST

Sea level rise from Antarctic collapse may be slower than suggested
A new study by scientists in the UK and France has found that Antarctic ice sheet collapse will have serious consequences for sea level rise over the next two hundred years, though not as much as some have suggested.
Publ.Date : Wed, 18 Nov 2015 15:51:28 EST

Low-oxygen 'dead zones' in North Pacific linked to past ocean-warming events
A new study has found a link between abrupt ocean warming at the end of the last ice age and the sudden onset of low-oxygen, or hypoxic conditions that led to vast marine dead zones.
Publ.Date : Wed, 18 Nov 2015 15:51:22 EST

Warming ocean worsened Australia's fatal 2010/2011 floods
Long-term warming of the Indian and Pacific oceans played an important role in increasing the severity of the devastating floods that struck Australia in 2010/2011, a study shows. The researchers found that, during a strong La Niña, warmer sea surface temperatures make Australia three times as likely to experience rainfall levels akin to the 2010/2011 event.
Publ.Date : Wed, 18 Nov 2015 13:10:20 EST

Melting Scandinavian ice provides missing link in Europe's final Ice Age story
Molecular-based moisture indicators, remains of midges and climate simulations have provided climate scientists with the final piece to one of the most enduring puzzles of the last Ice Age.
Publ.Date : Tue, 17 Nov 2015 11:26:49 EST

Methane feeds subsea ice mounds off Siberia
Pingos are spectacular landforms associated with permafrost in the Arctic. They are circular or elliptical formations protruding from the level ground of the tundra, and can be up to 60 meters high. In essence, they are huge lumps of ice covered with soil. Similar structures are now found strewn on the ocean floor in the Arctic shallow seas.
Publ.Date : Tue, 17 Nov 2015 09:22:47 EST

Sediment size matters in high-elevation erosion rates
Cold, steep, high-elevation slopes with less vegetation produce coarser and larger sediment than low-elevation, gentle slopes. This finding quantifies how sediment production varies with topography and suggests that variations in climate, topography and weathering rates may shape the evolution of mountain landscapes by influencing sediment size.
Publ.Date : Mon, 16 Nov 2015 18:10:17 EST