Scientists Predict All Surpassing GofM Dead Zone

SeaDiscovery.com
Monday, June 24, 2013
Computer modelled GofM Dead Zone: Image credit NOAA

NOAA scientific partners expect a very large “dead zone” in the Gulf of Mexico & a smaller than average hypoxic level in the Chesapeake Bay this year, based on several NOAA-supported forecast models.

NOAA-supported modelers at the University of Michigan , Louisiana State University , and the  Louisiana Universities Marine Consortium are forecasting that this year’s Gulf of Mexico hypoxic “dead” zone will be between 7,286 and 8,561 square miles which could place it among the ten largest recorded. That would range from an area the size of Connecticut, Rhode Island and the District of Columbia combined on the low end to the New Jersey on the upper end. The high estimate would exceed the largest ever reported 8,481 square miles in 2002.

Hypoxic (very low oxygen) and anoxic (no oxygen) zones are caused by excessive nutrient pollution, often from human activities such as agriculture, which results in insufficient oxygen to support most marine life in near-bottom waters. Aspects of weather, including wind speed, wind direction, precipitation and temperature, also impact the size of dead zones.

The Gulf estimate is based on the assumption of no significant tropical storms in the two weeks preceding or during the official measurement survey cruise scheduled from July 25-August 3 2013.  If a storm does occur the size estimate could drop to a low of 5344 square miles, slightly smaller than the size of Connecticut.

This year’s prediction for the Gulf reflect flood conditions in the Midwest that caused large amounts of nutrients to be transported from the Mississippi watershed to the Gulf. Last year’s dead zone in th e Gulf of Mexico was the fourth smallest on record due to drought conditions, covering an area of approximately 2,889 square miles, an area slightly larger than the state of Delaware. The overall average between 1995-2012 is 5,960 square miles, an area about the size of Connecticut.

 

Maritime Reporter January 2015 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Environmental

First LNG-powered EcoLiner Launched

Europe’s greenest inland vessel debuts Damen group innovations   Damen Shipyards Group launched the first LNG-powered Damen EcoLiner inland shipping tanker

St. Lawrence Seaway Opening Date Pushed Back

Tthe opening date for the St. Lawrence Seaway 2015 navigation season has been delayed following review and consideration of factors and conditions affecting safe

Drop in Cocoa Bean Size Worries Ivorian Exporters

Dry weather in top cocoa grower Ivory Coast has caused a sharp drop in bean size and will delay the start of the April-to-September mid-crop by nearly two months,

Marine Science

Caterpillar to Stay in Peoria

After a multiyear study focused on modernizing its global headquarters, Caterpillar Inc. today reaffirmed it will remain in Peoria, Illinois, and revealed a

Rushton Gregory Inks Gemeco Marketing Deal

Rushton Gregory Communications announced today the latest addition to its industry-leading client roster, Gemeco Marine. Based in Lake City, South Carolina,

Holland America Line Heads NOAA's List of Weather Observations

Holland America Line topped the list in 2014 for the World’s Leading Weather Observing Cruise Ship Companies who submitted weather information to the National

Ocean Observation

Martian Ocean Held More Water than the Arctic

The National Aeronautics and Space Administration say there was once more water on the planet Mars than in the Arctic Ocean on Earth.   In a new study in the journal Science,

Ships Can’t Cope with Flow of Immigrants in Mediterranean

Merchant ship owners can’t cope with increasing flows of refugees trying to cross from Africa and the Middle East to countries like Greece and Italy, says a report

Arctic on Thin Ice

Arctic sea ice - the ice that freezes and floats on Arctic waters - is thinning at a steadier and faster rate than researchers previously thought, a new study finds.

 
 
Maritime Standards Naval Architecture Offshore Oil Pod Propulsion Port Authority Salvage Ship Electronics Ship Simulators Shipbuilding / Vessel Construction Winch
rss | archive | history | articles | privacy | terms and conditions | contributors | top maritime news | about us | copyright | maritime magazines
maritime security news | shipbuilding news | maritime industry | shipping news | maritime reporting | workboats news | ship design | maritime business

Time taken: 0.1794 sec (6 req/sec)