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

People & Company News

DNV-GL Approves Kongsberg Engine Room Simulators

Kongsberg Maritime has received DNV-GL certification for three of its latest engine room simulator models designed to provide in-depth training on the K-Sim Engine simulator platform.

Container Shipping Lucky to Break Even in 2015

A toxic mixture of overcapacity, weak demand and aggressive commercial pricing is threatening liner shipping industry profitability for the rest of 2015, according

CMA CGM's OPDR Acquisition Approved by EU

The CMA CGM Group announced that the European Commission has approved its acquisition of OPDR. In order to finalize the acquisition, which was announced on November 25, 2014 by Jacques R.

Environmental

Danish Ports Approve HullWiper

Authorities at the Danish ports of Copenhagen, Kalundborg and Fredricia have granted permission for GAC EnvironHull’s pioneering, diver-free, underwater HullWiper

First Gas Turbine-powered LNG Carrier Granted AIP

Hyundai Heavy Industries (HHI) announced it has jointly developed world’s first gas turbine-powered 174,000 m3 LNG carrier with GE Aviation and Marine and has secured

APL’s Schedule Reliability Scales Up

APL was the most reliable carrier with a global on-time performance of 85.5% in May 2015, according to the latest Global Liner Performance Report by SeaIntel Maritime Analysis.

Marine Science

NAMEPA Welcomes Hadjipateras of Dorian

Clay Maitland, Founding Chairman of the North American Marine Environment Protection Association (NAMEPA) announced today, “NAMEPA welcomes our newest board member,

Water Conservation Measures at Panama Canal

The water levels at Gatun and Madden Lakes are currently well below the expected levels for this time of year. Based on a comprehensive analysis of historic data,

Aberdeen Pupils Peek into Subsea Oil & Gas Technology

Pupils at an Aberdeen primary school were given a rare insight into the depths of the oil and gas industry’s subsea sector after getting to sit in the driving

Maritime Safety

Djibouti Training Center Build on Pace

The construction of the Djibouti Regional Training Centre (DRTC) in Doraleh, Djibouti is moving forward in earnest, with a view to completion by the end of September 2015,

Greece Port Operations Update

An update on Greece’s port operations and local conditions was issued today by maritime services provider Inchcape Shipping Services (ISS).   According to ISS,

Cruise Ship Passenger Medevaced off US

A cruise ship passenger suffering stroke symptoms was medevaced by U.S. Coast Guard personnel approximately 200 miles east of Wilmington, North Carolina. The

Ocean Observation

Tideland Introduced New Navigation Aids at Seawork

Tideland Signal Corporation (Tideland) introduced a number of new innovative aids to navigation (AtoN) products at Seawork 2015, including SB-1800, the newest member

Research Vessel Heincke: Serving Science for 25 years

7 July 2015. A quarter of a century old, with over 900,000 kilometres (488,842 nautical miles) logged and still on the cutting edge of science and technology:

Oceans Can’t Take Any more: Researchers Fear Fundamental Change

Our oceans need an immediate and substantial reduction of anthropogenic greenhouse gas emissions. If that doesn’t happen, we could see far-reaching and largely

 
 
Maritime Careers / Shipboard Positions Maritime Contracts Naval Architecture Navigation Offshore Oil Pipelines Pod Propulsion Salvage Ship Repair Sonar
rss | archive | history | articles | privacy | 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: 0.1922 sec (5 req/sec)