Featured Research

from universities, journals, and other organizations

Doppler On Wheels Deployed At Hurricane Ike

Date:
September 18, 2008
Source:
National Science Foundation
Summary:
The only scientific team to successfully brave Hurricane Ike's knock-down winds and swells in Galveston was the DOW, the Doppler on Wheels mobile weather radar operated by the Center for Severe Weather Research in Boulder, Colo.

In the name of science, this mobile Doppler on Wheels braved Ike's hurricane winds last week.
Credit: Josh Wurman

The only scientific team to successfully brave Hurricane Ike's knock-down winds and swells in Galveston was the DOW, the Doppler on Wheels mobile weather radar operated by the Center for Severe Weather Research (CSWR) in Boulder, Colo.

"The DOW mission to Ike provided, for the first time, high-resolution radar data collected from the ground of the inside of a hurricane eye strengthening during landfall, and from a hurricane that directly impacted a large urban area," said scientist Josh Wurman of CWSR.

The National Science Foundation (NSF)-supported DOW was deployed on a 35-foot-high overpass in Galveston during the passage of Ike.

"The mission will allow researchers to better understand how phenomena called fine-scale wind streaks and boundary layer rolls, discovered by the the DOW in 1996, affect hurricane evolution," said Steve Nelson, program director in NSF's Division of Atmospheric Sciences, which funds the DOW. "These rolls may be important in how efficiently heat is extracted from the ocean, and how strongly hurricane winds are slowed by surface friction."

The DOW collected data for 17 hours. The center of Ike's eye passed nearly directly over the DOW, allowing scientists to take measurements of the front and rear eyewalls, and of the inside of the eye.

Deployed with the DOW were two vehicles equipped with instruments to track winds and raindrop size distributions, and ten unmanned "pods," which measured winds at locations so close to the water that human observers could not safely remain in the vicinity.

The vehicles were deployed at raised locations near the ends of the Galveston Causeway.

The pods stood watch in lines on the end of the Galveston Sea Wall and the Texas City Sea Wall, with 500-meter-spacing so the passage of small-scale gusts could be measured.

The DOW observed several mesovortices--swirling winds--in Ike's eyewall, which intensified winds and rainfall as these mesovortices rotated around the eye.

"The mesovortices are likely associated with some of the worst localized wind damage caused by Ike," said Wurman.

"The understanding from the DOW project is essential to improving forecasts of hurricane intensity, path, and rainfall amounts," he said. "It will lead to new insights on the nature of near surface winds in hurricanes, the behavior of hurricane eyewalls and processes inside eyewalls, and processes in hurricane rainbands."


Story Source:

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


Cite This Page:

National Science Foundation. "Doppler On Wheels Deployed At Hurricane Ike." ScienceDaily. ScienceDaily, 18 September 2008. <www.sciencedaily.com/releases/2008/09/080918091331.htm>.
National Science Foundation. (2008, September 18). Doppler On Wheels Deployed At Hurricane Ike. ScienceDaily. Retrieved April 20, 2014 from www.sciencedaily.com/releases/2008/09/080918091331.htm
National Science Foundation. "Doppler On Wheels Deployed At Hurricane Ike." ScienceDaily. www.sciencedaily.com/releases/2008/09/080918091331.htm (accessed April 20, 2014).

Share This



More Earth & Climate News

Sunday, April 20, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Drought Concerns May Hurt Lake Tourism

Drought Concerns May Hurt Lake Tourism

AP (Apr. 18, 2014) Operators of recreational businesses on western reservoirs worry that ongoing drought concerns will keep boaters and other visitors from flocking to the popular summer attractions. (April 18) Video provided by AP
Powered by NewsLook.com
Man Claims He Found Loch Ness Monster With... Apple Maps?

Man Claims He Found Loch Ness Monster With... Apple Maps?

Newsy (Apr. 18, 2014) Andy Dixon showed the Daily Mail a screenshot of what he believes to be the mythical beast swimming just below the lake's surface. Video provided by Newsy
Powered by NewsLook.com
First Ever 'Female Penis' Discovered In Animal Kingdom

First Ever 'Female Penis' Discovered In Animal Kingdom

Newsy (Apr. 18, 2014) Not only are these newly discovered bugs' sex organs reversed, but they also mate for up to 70 hours. Video provided by Newsy
Powered by NewsLook.com
Ark. Man Finds 6-Carat Diamond At State Park

Ark. Man Finds 6-Carat Diamond At State Park

Newsy (Apr. 18, 2014) An Arkansas man has found a nearly 6.2-carat diamond, which he dubbed "The Limitless Diamond," at the Crater of Diamonds State Park. 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:
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