Featured Research

from universities, journals, and other organizations

USGS Scientists, In Partnership With NASA, Develop New Extreme-Storm Hazards Map

Date:
May 7, 2001
Source:
U.S. Geological Survey
Summary:
USGS scientists, with their partners in NASA, using data gathered by a high-tech, airplane mounted NASA laser, have developed a new map showing critical elevations of the south Atlantic coast that indicate relative vulnerabilities of the coast to storm surge overtopping and inundation by hurricanes and extreme storms. They have also developed a new scale that categorizes expected coastal change (erosion and accretion) that occurs during storms.

USGS scientists, with their partners in NASA, using data gathered by a high-tech, airplane mounted NASA laser, have developed a new map showing critical elevations of the south Atlantic coast that indicate relative vulnerabilities of the coast to storm surge overtopping and inundation by hurricanes and extreme storms. They have also developed a new scale that categorizes expected coastal change (erosion and accretion) that occurs during storms.

The map and scale, which were unveiled in April at the National Hurricane Conference in Washington, D.C., are now available on the web at: http://coastal.er.usgs.gov/hurricanes/mappingchange/. The map color-codes segments of shoreline most vulnerable to overtopping by wave runup for a storm of the same intensity hitting the coast at approximately mean tide level. The dark red areas are more likely to be overtopped. The magnitude of coastal change that occurs during a storm is related to how high on the beach wave runup reaches relative to the elevation of the beach and dunes.

The data were acquired with NASA's Airborne Topographic Mapper, or ATM, and have far better accuracy and data density than data presently available from traditional topographic maps.

"Our ultimate goal is to provide sound, scientific information on where hazardous areas occur along the coast so that better decisions can be made on how far back new structures should be set from eroding shorelines," said USGS Coastal Geologist Abby Sallenger, one of the map's creators. "Accurate measurements of coastal topography are important to understanding coastal vulnerability to storms. This map is a first step. The map would have been nearly impossible to put together using data from traditional means of beach surveying."

As the aircraft flies along the coast, a laser altimeter scans a several hundred meter swath of the earth's surface acquiring an estimate of ground elevation every few square meters. USGS and NASA scientists measure change by comparing pre-storm to post-storm data. Traditional USGS topographic maps do not have sufficient resolution to be useful for comparing coastal elevations. Airborne scanning laser surveys are providing unprecedented data to investigate the magnitude and causes of coastal changes that occur during severe storms.

In the future, similar maps will be made for the Gulf of Mexico and Northeast US coastlines, said Sallenger.

The USGS serves the nation by providing reliable scientific information to: describe and understand the Earth; minimize loss of life and property from natural disasters; manage water, biological, energy, and mineral resources; and enhance and protect our quality of life.


Story Source:

The above story is based on materials provided by U.S. Geological Survey. Note: Materials may be edited for content and length.


Cite This Page:

U.S. Geological Survey. "USGS Scientists, In Partnership With NASA, Develop New Extreme-Storm Hazards Map." ScienceDaily. ScienceDaily, 7 May 2001. <www.sciencedaily.com/releases/2001/05/010507082459.htm>.
U.S. Geological Survey. (2001, May 7). USGS Scientists, In Partnership With NASA, Develop New Extreme-Storm Hazards Map. ScienceDaily. Retrieved August 1, 2014 from www.sciencedaily.com/releases/2001/05/010507082459.htm
U.S. Geological Survey. "USGS Scientists, In Partnership With NASA, Develop New Extreme-Storm Hazards Map." ScienceDaily. www.sciencedaily.com/releases/2001/05/010507082459.htm (accessed August 1, 2014).

Share This




More Earth & Climate News

Friday, August 1, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Pyrenees Orphan Bear Cub Gets Brand New Home

Pyrenees Orphan Bear Cub Gets Brand New Home

AFP (Aug. 1, 2014) The discovery of a bear cub in the Pyrenees mountains made headlines in April 2014. Despire several attempts to find the animal's mother, the cub remained alone. Now, the Pyrenees Conservation Foundation has constructed an enclosure. Duration: 00:31 Video provided by AFP
Powered by NewsLook.com
Greenpeace Ship Arctic Sunrise Free to Leave Russia

Greenpeace Ship Arctic Sunrise Free to Leave Russia

AFP (Aug. 1, 2014) Greenpeace's ship Arctic Sunrise, held in custody by the Russian authorities since September last year, has departed the Russian city of Murmansk en route for its home port of Amsterdam. Duration: 01:04 Video provided by AFP
Powered by NewsLook.com
Visitors Feel Part of the Pack at Wolf Preserve

Visitors Feel Part of the Pack at Wolf Preserve

AP (July 31, 2014) Seacrest Wolf Preserve on the northern Florida panhandle allows more than 10,000 visitors each year to get up close and personal with Arctic and British Columbian Wolves. (July 31) Video provided by AP
Powered by NewsLook.com
Florida Panther Rebound Upsets Ranchers

Florida Panther Rebound Upsets Ranchers

AP (July 31, 2014) With Florida's panther population rebounding, some ranchers complain the protected predators are once again killing their calves. (July 31) 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:
from the past week

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