sail-world.com
 
 
News Home Video Gallery Photo Gallery

 

Sail-World.com : Could you sail through this? Giant underwater storm detected

Could you sail through this? Giant underwater storm detected

'Underwater storm below Africa - 80 nautical miles across'    .

Could you sail through this? The answer is yes, even though this is an underwater storm that rivals the scale and size of a tropical cyclone, this storm is actually a deep eddy and the blue colour is created by blooms of phytoplankton, fertilised by the nutrient-rich deep water drawn up by the 80 nautical-mile-wide eddy.

Deep ocean eddy - showing its position in relation to Africa -  .. .  
This eddy in this amazing image, photographed by NASA's Terra satellite on Boxing Day last year and only recently released, is about four hundred nautical miles from the coast of Africa in the southern Indian Ocean.

MODIS (or Moderate Resolution Imaging Spectroradiometer) is a key instrument aboard NASA’s Terra (EOS AM) satellite. Terra MODIS views the entire Earth’s surface every 1 to 2 days, acquiring data in 36 spectral bands. These data improve our understanding of global dynamics and processes occurring on the land, in the ocean, and in the lower atmosphere.

NASA launched Terra back in 2003 as part of a multinational effort to monitor the spread of pollution around the Earth through a 15-year lifecycle. Although taking this photo was not Terra's mission it´s an awesome sight to behold.

The counter-clockwise anticyclonic structure of the eddy resembles a hurricane or typhoon, but does not disturb the surface water and unlike storms on the surface, brings nourishment rather than destruction.

'Eddies are the internal weather of the sea,' said Dennis McGillicuddy, an oceanographer at the Woods Hole Oceanographic Institution in Massachusetts.

And also unlike atmospheric storms, ocean eddies can last for months, even up to a year. The largest ones can contain up to 1,200 cubic miles (5,000 cubic kilometers) of water.

NASA’s Terra (EOS AM) satellite -  .. .  

The nutrient-drawing power of eddies can supply the relatively barren waters of the open ocean with nutrients, creating 'oases in the oceanic desert,' according to McGillicuddy.

The eddy imaged here likely peeled off from the Agulhas Current, which flows along the southeastern coast of Africa and around the tip of South Africa. Agulhas eddies, also called 'current rings,' tend to be among the largest in the world, transporting warm, salty water from the Indian Ocean to the South Atlantic.

To learn more about these ocean eddies, click here.




by Sail-World Cruising round-up

  

Click on the FB Like link to post this story to your FB wall

http://www.sail-world.com/index.cfm?nid=94236

12:55 AM Fri 24 Feb 2012 GMT






Click here for printer friendly version
Click here to send us feedback or comments about this story.


News - USA and the World



































































Belcher and Ryan lead from the start in Hyeres
ISAF Sailing World Cup Hyères - Race day 1 ready for lift off
Clipper Round the World Race 11 - Tense match downwind racing on Day 2
Antigua Classic Yacht Regatta - Day 3 an absolute gem
Quantum Key West 2015 dates confirmed
Flying Tigers 'Psych' - on Lake Lanier they pronounce it Zhik
ISAF Sailing World Cup Hyeres: Anticipation intensifies as start nears
Clipper Round the World Race - Race 11 start images by Chuck Lantz
27th Antigua Classic Yacht Regatta 2014 - Big breeze on the butterfly
Rolex China Sea Race 2014 - Pryde and Joy for Hi Fi
Clipper Round The World Race - A flying start on Day 1 of Race 11
Cammas on Caudrelier – different styles, same objective
Clipper Race - Californian crew member continues fundraising journey
Antigua Classic Yacht Regatta - Race 2 images by Jude Robertson
Les Voiles de St Barth - Images by Christophe Jouany
Clipper Round the World Yacht Race - Fleet sets sail in race 11
Congressional Cup - Canfield and Team US One best star-studded field
Clipper Round the World Yacht Race - Race 11 to get underway to Panama
Antigua Classic Yacht Regatta - Race 1 images by Jude Robertson
Rolex China Sea Race - Hi Fi collects the coveted IRC Overall title
Rolex China Sea Race - First arrivals in Subic Bay   
Rolex China Sea Race 2014 - a sniff of a hat-trick for Neil Pryde   
America's Cup Book Review: Winging It - Oracle Team USA's comeback *Feature   
Clipper Round the World Yacht Race: Switzerland drops trou for charity   
Rolex China Sea Race 2014 - nip and tuck for IRC honours   
Antigua Classic Yacht Regatta - 27th edition underway   
Rolex China Sea Race - Ragamuffin 90 claims line honours victory   
Saturday June 21st will feature the 39th One More time Regatta   
Rolex China Sea Race - Ragamuffin 90 extends unassailable lead   
Rolex China Sea Race - Commanding lead for Ragamuffin   
Antigua Classic Yacht Regatta - An amazing fleet of traditional yachts   
Bell's Beer Bayview Mackinac Race - Freshwater adventure on tap   
Why the 49er class is pushing hard to get finals format changed +Video   
Alpari World Match Racing Tour: Can Williams surpass Gilmour's record?   
Coastal Cup sets sail from Alameda June 11   
PWA Cold Hawaii World Cup - Massive support from the local community   
Les Voiles de St. Barth - Weather factors in + Video   
HUD Vision: An interview with Afterguard Marine’s Alex Moret *Feature   
ISAF Sailing World Cup Hyeres - US Sailing Team ready for action   
Volvo Ocean Race - Dongfeng Race Team first official qualifier   


For this week's complete news stories select    Last 7 Days
   Search All News
For last month's complete news stories select    Last 30 Days
   Archive News







Sail-World.com  


















Switch Default Region to:

Social Media

Asia

Australia

Canada

Europe

New Zealand

United Kingdom


http://www.sail-world.com/event_images/image/Twitter_logo_small.png http://www.sail-world.com/event_images/image/FaceBook-icon.png  http://www.sail-world.com/event_images/image/RSS-Icon.png

United States

Cruising Northern

Cruising Southern

MarineBusiness World

PowerBoat World

FishingBoating World

 

Contact

Commercial

News

Search

Contact Us

Advertisers Information

Submit news/events

Search Stories/Text

Feedback

Advertisers Directory

Newsletter Archive

Photo Gallery

 

Banner Advertising Details

Newsletter Subscribe

Video Gallery

Policies

 

 

 

Privacy Policy

 

 


Cookie Policy

 

 



This site and its contents are © Copyright TetraMedia and/or the original author, photographer etc. All Rights Reserved.  Photographs are copyright by law.  If you wish to use or buy a photograph contact the photographer directly.
X6XL NEW US