Subscribe free to our newsletters via your
. Earth Science News .




Subscribe free to our newsletters via your




















FROTH AND BUBBLE
New study helps explain how garbage patches form in the world's oceans
by Staff Writers
Miami FL (SPX) Feb 14, 2017


This image shows the density of finite-size objects after 1.5 years of evolution starting from a uniform distribution under the combined action of simulated ocean currents and reanalyzed winds. Image courtesy Beron-Vera, Olascoaga and Lumpkin

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 from the University of Miami (UM) Rosenstiel School of Marine and Atmospheric Science and colleagues developed a mathematical model that simulates the motion of small spherical objects floating at the ocean surface.

The researchers feed the model data on currents and winds to simulate the movement of marine debris. The model's results were then compared with data from satellite-tracked surface buoys from the NOAA Global Drifter Program's database.

Data from both anchored buoys and those that become unanchored, or undrogued, over time were used to see how each accumulated in the five ocean gyres over a roughly 20-year timeframe.

"We found that undrogued drifters accumulate in the centers of the gyres precisely where plastic debris accumulate to form the great garbage patches," said Francisco Beron-Vera, a research associate professor in the UM Rosenstiel School's Department of Atmospheric Sciences and lead author of the study.

"While anchored drifters, which are designed to closely follow water motion, take a much longer time to accumulate in the center of the gyres."

The study, which takes into account the combined effects of water and wind-induced drag on these objects, found that the accumulation of marine debris in the subtropical gyres is too fast to be due solely to the effect of trade winds that converge in these regions.

"We show that the size and weight of the drifters must be taken into account to fully explain the accumulation," said Maria Josefina Olascoaga, an associate professor in the UM Rosenstiel School's Department of Ocean Sciences and a co-author of the study.

The model could be used to track shipwrecks, airplane debris, sea ice and pollution among the many practical applications according to the researchers.

Research paper: "Inertia-induced accumulation of flotsam in the subtropical gyres"


Comment on this article using your Disqus, Facebook, Google or Twitter login.

Thanks for being here;
We need your help. The SpaceDaily news network continues to grow but revenues have never been harder to maintain.

With the rise of Ad Blockers, and Facebook - our traditional revenue sources via quality network advertising continues to decline. And unlike so many other news sites, we don't have a paywall - with those annoying usernames and passwords.

Our news coverage takes time and effort to publish 365 days a year.

If you find our news sites informative and useful then please consider becoming a regular supporter or for now make a one off contribution.

SpaceDaily Contributor
$5 Billed Once


credit card or paypal
SpaceDaily Monthly Supporter
$5 Billed Monthly


paypal only

.


Related Links
University of Miami Rosenstiel School of Marine and Atmospheric Science
Our Polluted World and Cleaning It Up






Share this article via these popular social media networks
del.icio.usdel.icio.us DiggDigg RedditReddit GoogleGoogle

Previous Report
FROTH AND BUBBLE
Banned chemicals from the '70s found in the deepest reaches of the ocean
Newcastle, UK (SPX) Feb 14, 2017
A study, led by Newcastle University's Dr Alan Jamieson, has uncovered the first evidence that man-made pollutants have now reached the farthest corners of our earth. Sampling amphipods from the Pacific Ocean's Mariana and Kermadec trenches - which are over 10 kilometres deep and 7,000 km apart - the team found extremely high levels of Persistent Organic Pollutants - or POPs - in the organism's ... read more


FROTH AND BUBBLE
Bringing satellites to users can improve public health and safety

Free hairdos to boost confidence of displaced Iraqi women

'Scorpion' robot mission inside Fukushima reactor aborted

Myanmar jade mine landslide kills 9: official

FROTH AND BUBBLE
Terahertz chips a new way of seeing through matter

Cooling roofs and other structures with no energy

Researchers engineer thubber a stretchable rubber that packs a thermal conductive punch

Penn researchers are among the first to grow a versatile 2-dimensional material

FROTH AND BUBBLE
Ethiopia dam causes Kenya water shortage: rights group

10 Italian execs found guilty over polluted water supply

Seagrass on decline, jeopardizing human, coral health: study

El Nino resulted in unprecedented erosion of the Pacific coastline

FROTH AND BUBBLE
How an Ice Age paradox could inform sea level rise predictions

Sentinels warn of dangerous ice crack

Sea ice at poles hit record low for January

Arctic cultures take climate fight to Berlin film fest

FROTH AND BUBBLE
Nicaragua focuses on climate-change resistant coffee

Gluten-free diet may increase risk of arsenic, mercury exposure

Study rewrites the history of corn in corn country

Mongolia herders reel under dreaded 'dzud' weather

FROTH AND BUBBLE
Italy asks EU aid as cost of quakes hits 23 bn euros

Cyclone bears down on Mozambique coast

Ventura fault could cause stronger shaking

Researchers catch extreme waves with higher-resolution modeling

FROTH AND BUBBLE
Interim authorities to begin work in Mali's north

UN demands armed groups stop fighting in C. Africa

S. Sudan army says general who quit was 'deeply' corrupt

Ivory Coast arrests six journalists over mutiny 'false information'

FROTH AND BUBBLE
Study links working remotely to more stress, insomnia

Study: The human brain always has a backup plan

Chimpanzee feet allow scientists a new grasp on human foot evolution

Humans subconsciously perceive words as 'round' or 'sharp'




Memory Foam Mattress Review
Newsletters :: SpaceDaily :: SpaceWar :: TerraDaily :: Energy Daily
XML Feeds :: Space News :: Earth News :: War News :: Solar Energy News






The content herein, unless otherwise known to be public domain, are Copyright 1995-2017 - Space Media Network. All websites are published in Australia and are solely subject to Australian law and governed by Fair Use principals for news reporting and research purposes. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA news reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. All articles labeled "by Staff Writers" include reports supplied to Space Media Network by industry news wires, PR agencies, corporate press officers and the like. Such articles are individually curated and edited by Space Media Network staff on the basis of the report's information value to our industry and professional readership. Advertising does not imply endorsement, agreement or approval of any opinions, statements or information provided by Space Media Network on any Web page published or hosted by Space Media Network. Privacy Statement