Featured Research

from universities, journals, and other organizations

Weather-making high-pressure systems predicted to intensify

Date:
October 5, 2012
Source:
Duke University
Summary:
High-pressure systems over oceans, which largely determine the tracks of tropical cyclones and hydrological extremes in much of the northern hemisphere, are likely to intensify this century, according to a new study.

High-pressure systems over oceans, which largely determine the tracks of tropical cyclones and hydrological extremes in much of the northern hemisphere, are likely to intensify this century, according to a Duke University-led study published online this week in Nature Geoscience.

Related Articles


The study's findings suggest that as summertime near-surface high-pressure systems over the northern Pacific and Atlantic oceans strengthen, they could play an increasingly important role in shaping regional climate, particularly the occurrence of drought and extreme summer rainfall, in coming years.

Wenhong Li, assistant professor of earth and ocean sciences at Duke's Nicholas School of the Environment, and colleagues used climate model simulations to predict future changes in the strength of the annually occurring North Atlantic Subtropical High, also known as the Bermuda High, and the North Pacific Subtropical High.

According to the simulations, these high-pressure systems will intensify over the 21st century as a result of increasing greenhouse-gas concentrations. The simulations suggest that an increase in the land-sea thermal contrast -- the difference between ocean and land heating, as Earth's climate warms -- will fuel the systems' intensification.

Li's co-authors on the new study are Laifang Li, a PhD student at Duke's Nicholas School; Mingfang Ting of the Lamont-Doherty Earth Observatory at Columbia University's Earth Institute; and Yimin Liu of the Chinese Academy of Sciences' Institute of Atmospheric Physics.

They used climate model simulations from the Intergovernmental Panel on Climate Change Fourth Assessment Report and 40 years of atmospheric circulation data from the European Centre for Medium-Range Weather Forecasts for the months of June, July and August to conduct their research.


Story Source:

The above story is based on materials provided by Duke University. Note: Materials may be edited for content and length.


Journal Reference:

  1. Wenhong Li, Laifang Li, Mingfang Ting, Yimin Liu. Intensification of Northern Hemisphere subtropical highs in a warming climate. Nature Geoscience, 2012; DOI: 10.1038/ngeo1590

Cite This Page:

Duke University. "Weather-making high-pressure systems predicted to intensify." ScienceDaily. ScienceDaily, 5 October 2012. <www.sciencedaily.com/releases/2012/10/121005123904.htm>.
Duke University. (2012, October 5). Weather-making high-pressure systems predicted to intensify. ScienceDaily. Retrieved March 29, 2015 from www.sciencedaily.com/releases/2012/10/121005123904.htm
Duke University. "Weather-making high-pressure systems predicted to intensify." ScienceDaily. www.sciencedaily.com/releases/2012/10/121005123904.htm (accessed March 29, 2015).

Share This


More From ScienceDaily



More Earth & Climate News

Sunday, March 29, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Vietnam Rice Boom Piles Pressure on Farmers and the Environment

Vietnam Rice Boom Piles Pressure on Farmers and the Environment

AFP (Mar. 29, 2015) Vietnam&apos;s drive to become the world&apos;s leading rice exporter is pushing farmers in the fertile Mekong Delta to the brink, say experts, with mounting costs to the environment. Duration: 02:35 Video provided by AFP
Powered by NewsLook.com
Raw: New Eruptions at Colima Volcano in Mexico

Raw: New Eruptions at Colima Volcano in Mexico

AP (Mar. 28, 2015) The Colima Volcano in western Mexico sent large columns of ash up into the air on Saturday. (March 28) Video provided by AP
Powered by NewsLook.com
Antarctic Ice Is Melting Faster Than Ever

Antarctic Ice Is Melting Faster Than Ever

Newsy (Mar. 27, 2015) A new study of nearly two decades of satellite data shows Antarctic ice shelves are losing more mass faster every year. Video provided by Newsy
Powered by NewsLook.com
Raw: Homes Near Landslide in Washington

Raw: Homes Near Landslide in Washington

AP (Mar. 27, 2015) Aerial footage from KOMO shows several homes near a landslide in Washington. KOMO reports that at least one of the homes has been damaged. (March 27) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Plants & Animals

Earth & Climate

Fossils & Ruins

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins