Tropical Cyclones Tend More Towards Poles: NOAA

By George Backwell
Wednesday, May 14, 2014
TRS image: Credit Tim Olander & Rick Kohrs, SSEC/CIMSS/UW-Madison

NOAA-led research results indicate that the average latitude where tropical cyclones achieve maximum intensity has been shifting poleward since 1980, briefs the NOAA.

Over the past 30 years, the location where tropical cyclones reach maximum intensity has been shifting toward the poles in both the northern and southern hemispheres at a rate of about 35 miles, or one-half a degree of latitude, per decade according to a new study, 'The Poleward Migration of the Location of Tropical Cyclone Maximum Intensity', that NOAA inform is to be published in Nature.

As tropical cyclones move into higher latitudes, some regions closer to the equator may experience reduced risk, while coastal populations and infrastructure poleward of the tropics may experience increased risk. With their devastating winds and flooding, tropical cyclones can especially endanger coastal cities not adequately prepared for them. Additionally, regions in the tropics that depend on cyclones' rainfall to help replenish water resources may be at risk for lower water availability as the storms migrate away from them.

Researchers explain that the amount of poleward migration varies by region. The greatest migration is found in the northern and southern Pacific and South Indian Oceans, but there is no evidence that the peak intensity of Atlantic hurricanes has migrated poleward in the past 30 years.

By using the locations where tropical cyclones reach their maximum intensity, the scientists have high confidence in their results.

"Now that we see this clear trend, it is crucial that we understand what has caused it - so we can understand what is likely to occur in the years and decades to come," says Gabriel Vecchi, scientist at NOAA's Geophysical Fluid Dynamics Laboratory and co-author of the study.

Source: NOAA

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

People & Company News

OTC Names Technology Award Winners

The Offshore Technology Conference (OTC), which takes place May 4-7 in Houston, has announced 17 technologies that will receive the Spotlight on New Technology SM Award.

Jack W. Fisher Passes Away at 73

Jack W Fisher, president of JW Fishers Mfg. passed away at home after a brief illness on February 20, 2015. He was 73 years old.   The JW Fishers business was started because Fisher,

Piracy Still a Big Threat in the Indian Ocean

Underestimating the security risk in the Indian Ocean could put ships in danger once again, says maritime security company MAST Ltd.   “Whilst recent reports

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

Maritime Safety

Jack W. Fisher Passes Away at 73

Jack W Fisher, president of JW Fishers Mfg. passed away at home after a brief illness on February 20, 2015. He was 73 years old.   The JW Fishers business was started because Fisher,

Piracy Still a Big Threat in the Indian Ocean

Underestimating the security risk in the Indian Ocean could put ships in danger once again, says maritime security company MAST Ltd.   “Whilst recent reports

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

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 Careers / Shipboard Positions Maritime Contracts Maritime Standards Naval Architecture Offshore Oil Pipelines Pod Propulsion Port Authority Ship Simulators 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: 0.1995 sec (5 req/sec)