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.

 

Tiny shells indicate big changes to global carbon cycle
Experiments with tiny, shelled organisms in the ocean suggest big changes to the global carbon cycle are underway, according to a new study.
Publ.Date : Thu, 25 May 2017 16:13:26 EDT

Why the Sumatra earthquake was so severe
An international team of scientists has found evidence suggesting the dehydration of minerals deep below the ocean floor influenced the severity of the Sumatra earthquake, which took place on Dec. 26, 2004.
Publ.Date : Thu, 25 May 2017 14:15:47 EDT

The birth and death of a tectonic plate
A new technique to investigate the underwater volcanoes that produce Earth's tectonic plates has been developed by a geophysicist.
Publ.Date : Wed, 24 May 2017 15:26:28 EDT

Going with the flow: The forces that affect species' movements in a changing climate
Ocean currents affect how climate change impacts movements of species to cooler regions. A new study provides novel insight into how species' distributions change from the interaction between climate change and ocean currents.
Publ.Date : Wed, 24 May 2017 08:45:03 EDT

Transforming how complex marine data is synthesized
Scientists are transforming how complex marine data from the Ocean Health Index is synthesized, communicated and used for coastal management.
Publ.Date : Tue, 23 May 2017 14:41:13 EDT

Weathering of rocks a poor regulator of global temperatures
Evidence from the age of the dinosaurs to today shows that chemical weathering of rocks is less sensitive to global temperature, and may depend on the steepness of the surface. The results call into question the role of rocks in setting our planet's temperature over millions of years.
Publ.Date : Tue, 23 May 2017 08:20:09 EDT

Sea level as a metronome of Earth's history
Sedimentary layers contain stratigraphic cycles and patterns that precisely reveal the succession of climatic and tectonic conditions that have occurred over millennia. Researchers have been working on an analytical method that combines observing deep-water sedimentary strata and measuring in them the isotopic ratio between heavy and light carbon. They have discovered that the cycles that punctuate these sedimentary successions are ascribable to sea level changes.
Publ.Date : Fri, 19 May 2017 08:36:31 EDT

Iron deficiency restrains marine microbes
Iron is a critical nutrient in the ocean. Its importance for algae and the nitrogen cycle has already been investigated in detail. Now a new discovery shows that microbes also need iron to process phosphorus. A team of researchers has completed a study showing that iron can limit phosphorus acquisition in the ocean. Their study contributes to knowledge of nutrient cycling in the ocean.
Publ.Date : Fri, 19 May 2017 08:36:28 EDT

GIS: A powerful tool to be used with caution
A recent study provides a new perspective on the severe impacts of escalating climate change on the heritage resources of Canadian Arctic. Referring to the application of Geographic Information System analytical methods in assessing the threat of shoreline erosion to archaeological sites, it details steps taken to review the quality of the GIS model in light of a discrepancy with rates observed during actual survey visits.
Publ.Date : Thu, 18 May 2017 10:40:12 EDT


Temperatures in the Arctic are increasing twice as fast as in the rest of the globe, while the Antarctic is warming at a much slower rate. A new study shows that land height could be a 'game changer' when it comes to explaining why temperatures are rising at such different rates in the two regions.
Publ.Date : Thu, 18 May 2017 08:30:39 EDT

Fate of marine carbon in last steps toward sequestration
New research explains how an ancient group of cells in the dark ocean wrings the last bit of energy from carbon molecules resistant to breakdown.
Publ.Date : Wed, 17 May 2017 13:25:56 EDT

Climate change refuge for corals discovered (and how we can protect it right now)
Scientists have discovered a refuge for corals where the environment protects otherwise sensitive species to the increasing severity of climate change.
Publ.Date : Wed, 17 May 2017 12:05:56 EDT

'Trojan fish': Invasive rabbitfish spread invasive species
For some time, unicellular benthic organisms from the Indo-Pacific have been spreading in the Mediterranean. An international team of scientists has now found evidence that a possible path of invasion has been in the gut of fish.
Publ.Date : Wed, 17 May 2017 11:16:46 EDT

Refining the ocean's thermometer
The chemistry of shells of plankton called foraminifera are a record of past climate. Recent experiments show magnesium levels vary in foram shells due to different growth rates during daily light/dark cycles.
Publ.Date : Tue, 16 May 2017 14:34:04 EDT

How atmospheric waves radiate out of hurricanes
Researchers believe they have found a new way to monitor the intensity and location of hurricanes from hundreds of miles away by detecting atmospheric waves radiating from the centers of these powerful storms.
Publ.Date : Tue, 16 May 2017 09:08:56 EDT

No escaping ocean plastic: 37 million bits of litter on one of world's remotest islands
The beaches of one of the world's most remote islands have been found to be polluted with the highest density of plastic debris reported anywhere on the planet, a new study shows. Despite being uninhabited and located more than 5,000 kilometers from the nearest major population center, Henderson Island is littered with an estimated 37.7 million pieces of plastic.
Publ.Date : Mon, 15 May 2017 15:48:20 EDT

Code of conduct needed for ocean conservation, study says
A diverse group of the world's leading experts in marine conservation is calling for a Hippocratic Oath for ocean conservation -- not unlike the pledge physicians take to uphold specific ethical standards when practicing medicine.
Publ.Date : Mon, 15 May 2017 15:07:03 EDT

Heat on for Australia's Great Barrier Reef when global temperatures hit 1.5C
Scientists have modeled how extremes in precipitation, drought, extreme heat and ocean temperatures will change in Australia at global temperatures 1.5°C and 2°C above pre-industrial conditions. It doesn't bode well for Australia's Great Barrier Reef.
Publ.Date : Mon, 15 May 2017 11:15:52 EDT

Importance of marine, coastal cultural ecosystem services
Cultural ecosystem services reflect physical and cognitive interactions between humans and nature, and are increasingly recognized for providing experiences, capabilities and many other benefits to human societies. While oceans, seas, and coasts sustain a great proportion of the human population, cultural ecosystem services provided by these areas still remain largely unexplored. A new study analyses and maps case studies worldwide and pinpoints priorities to move research forward.
Publ.Date : Mon, 15 May 2017 09:54:37 EDT

What goes down, must come up: Stirring things up in the Earth's mantle
New insights into the convection patterns of the Earth's mantle and its chemical makeup have been revealed. The new findings suggest that the mantle does not flow ubiquitously, as has been previously thought - and that it is instead divided into two very large domains that convect only within themselves, with little evidence of them mixing together.
Publ.Date : Fri, 12 May 2017 09:39:40 EDT