News Home Video Gallery Newsletters Photo Gallery Cruising Int
Sail-World.com : Spike in water temperatures evidence of ‘irreversible’ El Nino
Spike in water temperatures evidence of ‘irreversible’ El Nino

'El Nino observed by TOPEX Poseidon. The white areas off the tropical coasts of South and North America indicate the pool of warm water'    .

Water temperatures in the equatorial Pacific Ocean rose drastically last week, prompting expectations of an upward warming trend that would confirm the development of El Nino.

Sea surface temperature (STT) anomalies in the Nino 3.4 region (see image below) showed the highest value of the year at +0.9ºC on June 20, according to data from NOAA seen by Undercurrent News.

This is important to define the event as El Nino since scientists classify the intensity of the weather phenomenon based on STT anomalies exceeding a pre-selected threshold in a certain region of the equatorial Pacific.

The most commonly used region is the Nino 3.4, and the most commonly used threshold is a positive STT departure from normal, greater than, or equal to +0.5°C.

Thus, NOAA defines El Nino as five consecutive overlapping 3-month periods at or above the +0.5°C anomaly in the Niño 3.4 region.

The growth of temperature anomalies from +0.4°C in mid-April to +0.9°C now has encouraged projections of an upward warming trend confirming the development of El Nino.

'This is a big jump in temperature, from now on waters will hardly be cooled, the event is irreversible,' oceanic scientist Luis Icochea told Undercurrent.

Icochea, who in April said that abnormally high temperatures were reminiscent of 1997-98 – when took place one of the strongest El Nino’s ever – is confident El Nino will develop this year.

'Everything suggests El Nino will be very strong, without ruling out the possibility of an extraordinary event,' Icochea said.

     

     


Abnormalities of sea surface temperature in Peru have been noticed already in May, as anchovy has moved to the south, near the shore, where industrial fleet is not allowed to operate.

In the north-center area — with a first anchovy season’s TAC of 2.53 millon metric tons — industrial fleet is seen poor catches so far.

By June 11, industry players said only 36% of the anchovy’s total allowable catch had been caught.

'Fishmeal players in Peru will be the most harmed by El Nino, as anchovy is the resource most affected by the weather event,' Icochea said.

To avoid the increased temperatures, pelagic fish such as anchovy will have to move to cooler, deeper waters where feed is available and there are suitable oceanographic conditions.

On the other hand, the phenomenon could mean higher catches of other species for human consumption such as hake — which is showing already a biomass improvement — tuna, mahi mahi, swordfish or shark, Icochea said.


by Alicia Villegas


  

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

http://www.sail-world.com/index.cfm?nid=123783

12:48 AM Fri 27 Jun 2014GMT


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







Cruising USA











A case of crossed wires? A shocking situation! by Stuart Carruthers, RYA Cruising Manager,










Canal Boating in the Alsace with the Galley Guys by Greg Nicoll with John Armstrong,


World ARC fleet arrives in Darwin by World Cruising Club,






Where in the world are our strongest corals? by Hanny Rivera - Cohen's Lab,








Barnacle Busting by Neil and Ley Langford,


From Penguins to Polar Bears by Cherie Winner,




Polar research: Six priorities for Antarctic science by Mahlon C. Kennicutt II and colleagues,




NCI granted dedicated VHF Channel by National Coastwatch,


Positive news for cruising boats in Greece by The Cruising Association,


















Sustainable Seafood - How to purchase with confidence
Risks to penguin populations continues
ARC Baltic fleet head from Helsinki to Stockholm
Follow these tips when anchoring
Galley Guys meet the Spice Lady
North American Rally to the Caribbean - Get prepared to head south
If all else fails read the instructions!!
ARC Baltic fleet cruising and anchoring in the Finnish archipelago
Phuket Yacht Show: new kid on the block taking on PIMEX? *Feature
Vanuatu Customs making life easier for visiting cruising yachts
Baltic 4 Nations rally is now in full swing
Tropical Storm Bertha expected to become a typhoon
Flags at Sea, an infographic by John Tissott
Cruising lessons from ocean racers
Procedures set out for waterborne visitors to Vanuatu
17-year-old RNLI volunteer saves child in first rescue mission + Video
Teen names latest RNLI Shannon class lifeboat in Poole + Video
Fascinating opportunity with OceansWatch
Fake GPS signals detected when cruising the high seas
Our new Cruising Editor editor remembers his first offshore adventure
Blue Planet Odyssey - Jimmy Cornell playing catch up on North West Pa   
World ARC 2014 reaches Australia   
Venezuelan Port Control lift recent port restrictions.   
Seismic survey ship operating north of Aruba and Curacao   
Predictwind helps you pick the best time to depart   
Watch this whale lift a Kayak clear out of the water   
World ARC reaches half-way point in Australia   
Northern Scotland: Voyage to Orkney and Shetland Isles (Part 2) *Feature   
Drowning or electric shock? What you need to know to help save a life   
Costa Concordia - the $2.25 billion salvage operation ready to begin   
Northern Scotland: Voyage to Orkney and Shetland Isles, more photos *Feature   
Fort Lauderdale International Boat Show - New location and attractions   
Long Island waters could become more taxing this summer   
4.8 million Legos all at sea   
Tranquil, colourful and funky, Genoa Bay is a must stop for West Coast *Feature   
Scientist pioneered tracer to reveal hidden ocean flows   
Sail-World 2.0 - the Beta version- Please take a look   
Dredging activity near corals can increase frequency of diseases   
World ARC heading out of the Pacific   
Understanding the Ocean's role in Greenland Glacier melt   


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  

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.
XLXL NEW Cru USA
LocalAds   DE  ES  FR  IT