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 2014 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

People & Company News

GTT Wins DSME Order for 9 More Icebreaking LNGCs

Gaztransport & Technigaz (GTT), a designer of membrane containment systems for the maritime transportation and storage of Liquefied Natural Gas (LNG), announced

Bollinger to Build 6 More FRCs for the USCG

Bollinger Shipyards, Inc., Lockport, Louisiana, announced the award of six additional USCG Sentinel Class Fast Response Cutters (FRCs). The U. S. Coast Guard

Wärtsilä to Divest its Shares in Two-stroke JV

Wärtsilä to divest its shares in QMD two-stroke joint venture Wärtsilä announced that it will divest its shares in the Qingdao Qiyao Wärtsilä MHI Linshan Marine Diesel Co.

Environmental

Concordia Tow Update: Smooth Sailing

The Costa Concordia wreck removal team reported this morning at 10:30 a.m. that after 22 hours of navigation, the convoy was over 50 miles off Giglio Island with about 140 miles from Genoa Prà-Voltri.

Thome Is the First to Sign up to IMPA Act

Leading integrated ship management service provider Thome Ship Management has become the first ship management company to join IMPA ACT, the responsible supply chain management initiative,

Legislation Grants Funding for EU's EMSA

EU Council Adopts Regulation on EMSA Funding The European Union Council adopted a regulation yesterday to finance the actions of the European Maritime Safety

Marine Science

Jacksonville Adds PORTS Real-time Data System

Officials from NOAA, the Jacksonville Marine Transportation Exchange, and the Jacksonville Port Authority officially dedicated a new information system today

Rosneft to Monitor Marine Fauna in Northern Sea Route

OAO NK Rosneft will conduct marine fauna monitoring in the Northern Sea Route in 2014. The studies will be organized by the Arctic Research Center, a joint venture of Rosneft and ExxonMobil.

2H Offshore Joins Deepwater Mining Consortium

2H Offshore, an Acteon company, has joined an international European consortium comprising nineteen industry and research organizations to develop deepwater mining solutions.

Maritime Safety

Mediterranean Boat People Numbers Near 100,000

Almost 100,000 boat people have made the dangerous journey across the Mediterranean to Europe this year, a roughly 60 percent increase on the whole of last year,

Hall Joins Bouchard Transportation

Retired Active Duty Coast Guard Commanding Officer Brian Hall has joined Bouchard Transportation Co., Inc., the nation’s largest independently-owned oceangoing petroleum barge company,

Maritime NZ Oil Spill Response Review: Submissions

Maritime New Zealand (MNZ) says it invites submissions on its draft updated New Zealand Marine Oil Spill Response Strategy 2014 (the draft Strategy). The draft Strategy, (available at http://bit.

 
 
Maritime Careers / Shipboard Positions Maritime Security Naval Architecture Offshore Oil Pipelines Pod Propulsion Port Authority Salvage Ship Electronics Ship Repair
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: 0.2444 sec (4 req/sec)