Featured Research

from universities, journals, and other organizations

NASA Data Combined To Improve Hurricane Landfall Forecasts

Date:
April 24, 2006
Source:
NASA/Goddard Space Flight Center
Summary:
Data gathered from last year's NASA hurricane research mission and a NASA satellite have improved tropical storm landfall and storm strength forecasts in computer models.

These two images show forecast rainfall amounts over 48 hours, from tropical storm Cindy, July 5-7th without (left) and with NASA data (right). The left image without aircraft sensor and satellite data shows unrealistic large amounts of rain after Cindy made landfall. It also missed a large amount of rainfall that happened before Cindy's center made landfall. The right-hand image with aircraft and NASA satellite data is much more accurate to the rain that really fell.
Credit: University of Utah

Data gathered from last year's NASA hurricane research mission and a NASA satellite have improved tropical storm landfall and storm strength forecasts in computer models.

Ocean surface wind data gathered from NASA's QuikSCAT satellite were combined with data from aircraft sensors dropped into tropical storms and fed into a new generation weather research and forecasting (WRF) computer model used to predict weather. The researchers in this study also used data from the National Oceanic and Atmospheric Administration's (NOAA) GOES-11 satellite rapid-scan cloud track wind data. When the data were added, the resulting prediction showed improved track and intensity forecast of tropical storms.

"Our results indicate the quite positive impact of those data on forecasts of two landfall storms in last season: tropical storms Cindy and Gert." said Zhaoxia Pu, scientist at the University of Utah, Salt Lake City, and lead researcher on the study. She reported the results on April 24 at the American Meteorological Society’s Conference on Hurricanes and Tropical Meteorology in Monterey, Calif. The detailed results of this study have been submitted to the Monthly Weather Review for publication.

"By incorporating the aircraft sensor and QuiKSCAT data, the new generation WRF computer model was able to reproduce structure of the rainfalls that caused the flooding during the landfall of two storms," Pu said.

In July 2005, the Tropical Cloud Systems and Processes (TCSP) mission investigated two hurricanes and several tropical storms. The mission was based at the Juan Santamaria Airfield in San Jose, Costa Rica, and flew 13 NASA ER-2 science flights, including missions to Hurricanes Dennis and Emily. NASA, NOAA, and the Costa Rican Centro Nacional de Alta Tecnologia were participants in the mission.

The P-3 aircraft from the NOAA Hurricane Research Division flew 20 coordinated missions with the NASA research aircraft to investigate developing tropical disturbances. Sensors dropped from airplanes, called dropsondes, gathered data on temperature, winds, pressure and humidity inside the storms.

The team also employed small, unmanned aerial vehicles, a series of balloon-borne weather probes and several low-earth, polar-orbiting and geostationary NASA and NOAA satellites.

The results from this study imply that satellite data are a valuable source for improving tropical cyclone forecasts. In addition, the 2005 field experiment provided valuable data and opportunities for better understanding tropical cyclones.

The new generation WRF computer model is widely used for forecasting and research. It has been used by many local government agencies, research institutes and commercial industries for real-time forecasts.

Pu said that NASA data's enhancement of WRF hurricane computer model forecasts will encourage the forecast community to incorporate it in all future hurricane forecasts.


Story Source:

The above story is based on materials provided by NASA/Goddard Space Flight Center. Note: Materials may be edited for content and length.


Cite This Page:

NASA/Goddard Space Flight Center. "NASA Data Combined To Improve Hurricane Landfall Forecasts." ScienceDaily. ScienceDaily, 24 April 2006. <www.sciencedaily.com/releases/2006/04/060424181112.htm>.
NASA/Goddard Space Flight Center. (2006, April 24). NASA Data Combined To Improve Hurricane Landfall Forecasts. ScienceDaily. Retrieved September 17, 2014 from www.sciencedaily.com/releases/2006/04/060424181112.htm
NASA/Goddard Space Flight Center. "NASA Data Combined To Improve Hurricane Landfall Forecasts." ScienceDaily. www.sciencedaily.com/releases/2006/04/060424181112.htm (accessed September 17, 2014).

Share This



More Earth & Climate News

Wednesday, September 17, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Raw: Scientists Examine Colossal Squid

Raw: Scientists Examine Colossal Squid

AP (Sep. 16, 2014) Squid experts in New Zealand thawed and examined an unusual catch on Tuesday: a colossal squid. It was captured in Antarctica's remote Ross Sea in December last year and has been frozen for eight months. (Sept. 16) Video provided by AP
Powered by NewsLook.com
Man Floats for 31 Hours in Gulf Waters

Man Floats for 31 Hours in Gulf Waters

AP (Sep. 16, 2014) A Texas man is lucky to be alive after he and three others floated for more than a day in the Gulf of Mexico when their boat sank during a fishing trip. (Sept. 16) Video provided by AP
Powered by NewsLook.com
Researchers Explore Shipwrecks Off Calif. Coast

Researchers Explore Shipwrecks Off Calif. Coast

AP (Sep. 16, 2014) Federal researchers are exploring more than a dozen underwater sites where they believe ships sank in the treacherous waters west of San Francisco in the decades following the Gold Rush. (Sept. 16) Video provided by AP
Powered by NewsLook.com
Isolated N. Korea Asks For International Help With Volcano

Isolated N. Korea Asks For International Help With Volcano

Newsy (Sep. 16, 2014) Mount Paektu volcano in North Korea is showing signs of life and there's not much known about it. 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