Featured Research

from universities, journals, and other organizations

NASA Technology Tracks Consequences Of Hurricane Floyd

Date:
November 3, 1999
Source:
National Aeronautics And Space Administration
Summary:
A NASA oceanographer, using spaceborne technologies to study the effects of Hurricane Floyd, has seen indications that there may be significant impacts on the marine food chain along the North Carolina coast due to extensive rainfall in the region.

A NASA oceanographer, using spaceborne technologies to study the effects of Hurricane Floyd, has seen indications that there may be significant impacts on the marine food chain along the North Carolina coast due to extensive rainfall in the region.

Related Articles


"Following Hurricane Floyd, record-breaking rains continued to soak the area, washing mountains of sediment and waste into the water system. Now rivers and tributaries along the Atlantic are choked and major ecological changes are happening," said Gene Feldman, of NASA's Goddard Space Flight Center, Greenbelt, MD.

"Periodically, levels of dissolved oxygen in the water have dropped dramatically as organic matter decomposes, and aquatic life has been threatened in dozens of estuaries and peripheral habitats, commonly referred to as 'dead zones.' The current changes in the area may have lasting repercussions for hundreds of thousands of people," he said.

Scientists are studying Hurricane Floyd's effect on algae blooms and phytoplankton, important links in the regional marine food chain. Their data also will help them understand how the hurricane's aftermath may affect the fragile environment in the coming months.

Using data from NASA's Earth-orbiting Sea-viewing Wide Field-of-view Sensor (SeaWiFS) and an airborne laser instrument, scientists from two National Oceanic and Atmospheric Administration (NOAA) centers can monitor algae growth over large regions, including Pamlico Sound between the North Carolina mainland and the Outer Banks.

According to Pat Tester, a NOAA scientist at the Center for Coastal Fisheries and Habitat Research, Beaufort, NC, fertilizer and other nutrients that flowed down the storm flooded rivers in eastern North Carolina are feeding the algae or phytoplankton in the sounds.

"One question is what happens to the aquatic activity in the sounds when this algae dies and begins to starve the waters of oxygen," Tester said. "The long-term observations provided by the NASA technology will help us monitor the phytoplankton in the water.

"The NASA technology improves our ability to monitor these important fishery areas by covering larger areas than direct sampling from boats can, and by providing this information for weeks or months."

Tester's team is coordinating sampling missions from small boats on the waterways with flights by a NOAA Twin-Otter aircraft carrying the NASA laser and observations from the SeaWiFS spacecraft. "This approach is providing a three-tier look at the area from space, air and sea," she said.

The laser system, the Airborne Oceanographic Lidar from Goddard's Wallops Flight Facility, Wallops Island, VA, transmits a green light pulse into the water, where the light is absorbed by the phytoplankton. A receiver on the aircraft detects the green light reflected from the water's surface and red light that is emitted by the chlorophyll pigment in the algae.

The SeaWiFS instrument measures changes in water color that indicate where concentrations of phytoplankton are located.

NOAA's Coastal Services Center, Charleston, SC, is also taking part in the research.

Images from SeaWiFS of eastern North Carolina following Hurricane Floyd are available at the following web address:

http://svs.gsfc.nasa.gov/imagewall/carolina.html


Story Source:

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


Cite This Page:

National Aeronautics And Space Administration. "NASA Technology Tracks Consequences Of Hurricane Floyd." ScienceDaily. ScienceDaily, 3 November 1999. <www.sciencedaily.com/releases/1999/11/991103080450.htm>.
National Aeronautics And Space Administration. (1999, November 3). NASA Technology Tracks Consequences Of Hurricane Floyd. ScienceDaily. Retrieved December 17, 2014 from www.sciencedaily.com/releases/1999/11/991103080450.htm
National Aeronautics And Space Administration. "NASA Technology Tracks Consequences Of Hurricane Floyd." ScienceDaily. www.sciencedaily.com/releases/1999/11/991103080450.htm (accessed December 17, 2014).

Share This


More From ScienceDaily



More Earth & Climate News

Wednesday, December 17, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Ivory Trade Boom Swamps Law Efforts

Ivory Trade Boom Swamps Law Efforts

Reuters - Business Video Online (Dec. 17, 2014) Demand for ivory has claimed the lives of tens of thousands of African elephants and now a conservation report says the illegal trade is overwhelming efforts to enforce the law. Amy Pollock reports. Video provided by Reuters
Powered by NewsLook.com
Uphill Battle to Tackle Indonesian Shark Fishing

Uphill Battle to Tackle Indonesian Shark Fishing

AFP (Dec. 17, 2014) Sharks are hauled ashore every day at a busy market on the central Indonesian island of Lombok, the hub of a booming trade that provides a livelihood for local fishermen but is increasingly alarming environmentalists. Duration: 00:42 Video provided by AFP
Powered by NewsLook.com
France's Sauternes Wine Threatened by New Train Line

France's Sauternes Wine Threatened by New Train Line

AFP (Dec. 16, 2014) Winemakers in southwestern France's Bordeaux are concerned about a proposed high speed train line that could affect the microclimate required for the region's sweet wine. Duration: 01:06 Video provided by AFP
Powered by NewsLook.com
2016 Olympic Waters Feature 'Super Bacteria' Researchers Say

2016 Olympic Waters Feature 'Super Bacteria' Researchers Say

Newsy (Dec. 16, 2014) Researchers found the bacteria Klebsiella pneumoniae Carbapenemase in the water where the 2016 Olympics is supposed to take place. 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