Featured Research

from universities, journals, and other organizations

Strong El Niño could bring increased sea levels, storm surges to US East Coast

Date:
July 15, 2011
Source:
National Oceanic and Atmospheric Administration
Summary:
Coastal communities along the US East Coast may be at risk to higher sea levels accompanied by more destructive storm surges in future El Niño years, according to a new study. The study was prompted by an unusual number of destructive storm surges along the East Coast during the 2009-2010 El Niño winter.

November 2009's Mid-Atlantic Nor'easter brought damage to the Hampton Roads, Va. area, to include a barge that grounded onto Virginia Beach.
Credit: NOAA

Coastal communities along the U.S. East Coast may be at risk to higher sea levels accompanied by more destructive storm surges in future El Niño years, according to a new study by NOAA. The study was prompted by an unusual number of destructive storm surges along the East Coast during the 2009-2010 El Niño winter.

Related Articles


The study, led by Bill Sweet, Ph.D. from NOAA's Center for Operational Oceanographic Products and Services, examined water levels and storm surge events during the 'cool season' of October to April for the past five decades at four sites representative of much of the East Coast: Boston, Atlantic City, N.J., Norfolk, Va., and Charleston, S.C.

From 1961 to 2010, it was found that in strong El Niño years, these coastal areas experienced nearly three times the average number of storm surge events (defined as those of one foot or greater). The research also found that waters in those areas saw a third-of-a-foot elevation in mean sea level above predicted conditions.

"High-water events are already a concern for coastal communities. Studies like this may better prepare local officials who plan for or respond to conditions that may impact their communities," said Sweet. "For instance, city planners may consider reinforcing the primary dunes to mitigate for erosion at their beaches and protecting vulnerable structures like city docks by October during a strong El Niño year."

El Niño conditions are characterized by unusually warm ocean temperatures in the Equatorial Pacific that normally peak during the Northern Hemisphere "cool season." They occur every three to five years with stronger events generally occurring every 10-15 years. El Niño conditions have important consequences for global weather patterns, and within the U.S., often cause wetter-than-average conditions and cooler-than-normal temperatures across much of the South.

The study builds on previous ocean-atmospheric research, which has concluded that during El Nino Nor'easter wind storms are more frequent along the East Coast during the 'cool season'. El Niño and its impacts usually fade in the warmer months, and which may transition into La Niña conditions, which are generally opposite to those of El Niño. However, a similar connection between La Niña conditions and depressed East Coast sea levels was not found.

"This research furthers our understanding of the interconnections between the ocean and atmosphere, which are so important in the Earth's climate system, and points to ways this greater understanding can be used to help coastal communities prepare for the winter season," said Keith L. Seitter, executive director of the American Meteorological Society.


Story Source:

The above story is based on materials provided by National Oceanic and Atmospheric Administration. Note: Materials may be edited for content and length.


Journal Reference:

  1. William V. Sweet, Chris Zervas. Cool-Season Sea Level Anomalies and Storm Surges along the U.S. East Coast: Climatology and Comparison with the 2009/10 El Niño. Monthly Weather Review, 2011; 139 (7): 2290 DOI: 10.1175/MWR-D-10-05043.1

Cite This Page:

National Oceanic and Atmospheric Administration. "Strong El Niño could bring increased sea levels, storm surges to US East Coast." ScienceDaily. ScienceDaily, 15 July 2011. <www.sciencedaily.com/releases/2011/07/110715135330.htm>.
National Oceanic and Atmospheric Administration. (2011, July 15). Strong El Niño could bring increased sea levels, storm surges to US East Coast. ScienceDaily. Retrieved December 21, 2014 from www.sciencedaily.com/releases/2011/07/110715135330.htm
National Oceanic and Atmospheric Administration. "Strong El Niño could bring increased sea levels, storm surges to US East Coast." ScienceDaily. www.sciencedaily.com/releases/2011/07/110715135330.htm (accessed December 21, 2014).

Share This


More From ScienceDaily



More Earth & Climate News

Sunday, December 21, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Raw: Lava on Track to Hit Hawaii Market

Raw: Lava on Track to Hit Hawaii Market

AP (Dec. 19, 2014) — Lava from an active volcano on Hawaii's Big Island slowed slightly but stayed on track to hit a shopping center in the small town of Pahoa. (Dec. 19) Video provided by AP
Powered by NewsLook.com
Birds Might Be Better Meteorologists Than Us

Birds Might Be Better Meteorologists Than Us

Newsy (Dec. 19, 2014) — A new study suggests a certain type of bird was able to sense a tornado outbreak that moved through the U.S. a day before it hit. Video provided by Newsy
Powered by NewsLook.com
Navy Unveils Robot Fish

Navy Unveils Robot Fish

Reuters - Light News Video Online (Dec. 18, 2014) — The U.S. Navy unveils an underwater device that mimics the movement of a fish. Tara Cleary reports. Video provided by Reuters
Powered by NewsLook.com
Arctic Warming Twice As Fast As Rest Of Planet

Arctic Warming Twice As Fast As Rest Of Planet

Newsy (Dec. 18, 2014) — The Arctic is warming twice as fast as the rest of the planet, thanks in part to something called feedback. Video provided by Newsy
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