Navigation Links
NASA celebrates a decade observing climate impacts on health of world's oceans
Date:9/19/2007

GREENBELT, Md. -- The NASA-managed Sea-viewing Wide Field-of-view Sensor (SeaWiFS) instrument settled into orbit around Earth in 1997 and took its first measurements of ocean color. A decade later, the satellite's data has proved instrumental in countless applications and helped researchers paint a picture of a changing climate. NASA recognized the satellite's tenth anniversary today with briefings at the Goddard Space Flight Center in Greenbelt, Md.

NASA and GeoEye's SeaWiFS instrument has given researchers the first global look at ocean biological productivity. Its data have applications for understanding and monitoring the impacts of climate change, setting pollution standards, and sustaining coastal economies that depend on tourism and fisheries.

"SeaWiFS allows us to observe ocean changes and the mechanisms linking ocean physics and biology, and that's important for our ability to predict the future health of the oceans in a changing climate," said Gene Carl Feldman, SeaWiFS project manager at Goddard.

Researchers used SeaWiFS data to identify factors controlling the unusual timing of the 2005 phytoplankton bloom in the California Current System that led to the die-off of Oregon coast seabirds. The blooming tiny microscopic plants are key indicators of ocean health, form the base of marine food webs, and absorb carbon dioxide a major greenhouse gas from Earth's atmosphere.

"Long-term observations of the California coast and other sensitive regions is essential to understanding how changing global climate impacted ecosystems in the past, and how it may do so in the future," said Stephanie Henson of the University of Maine, lead author of a study published last month in the American Geophysical Unions "Journal of Geophysical Research Oceans." "This type of large-scale, long-term monitoring can only be achieved using satellite instrumentation," she added.

The SeaWiFS instrument orbits Earth fourteen times a day, measuring visible light over every area of cloud-free land and ocean once every 48 hours. The result is a map of Earth with colors spanning the spectrum of visible light. Variations in the color of the ocean, particularly in shades of blue and green, allow researchers to determine how the numbers of the single-celled plants called phytoplankton are distributed in the oceans over space and time.

In other research, Mike Behrenfeld of Oregon State University, Corvallis, Ore., and colleagues were the first to use SeaWiFS to quantify biological changes in the oceans as a response to El Nio, which they described in a landmark 2001 study in Science.

"The 2001 study is significant because it marked the first time that global productivity was measured from a single sensor," said Paula Bontempi, program manager for the Biology and Biogeochemistry Research Program at NASA Headquarters in Washington. "The simplicity of SeaWiFS a single sensor designed only to measure ocean color has made it the gold standard for all ocean color monitoring instruments."

More recently, Zhiqiang Chen and colleagues at the University of South Florida, St. Petersburg, showed that SeaWiFS data have direct application for state and federal regulators looking to better define water quality standards. The team reported in "Remote Sensing of Environment" that instead of relying on the infrequent measurements collected from ships or buoys, SeaWiFS data can be used to monitor coastal water quality almost daily, providing managers with a more frequent and complete picture of changes over time.

Beyond the realm of ocean observations, however, SeaWiFS has "revolutionized the way people do research," Feldman said. SeaWiFS was one of the first missions to open up data access online to researchers, students and educators around the world. The mission was able to capitalize on advances in data processing and storage technologies and ride the crest of the World Wide Web's growth from its beginning.

When the SeaWiFS program launched in 1997, the goal was to place a sensor in space capable of routinely monitoring ocean color to better understand the interplay between the ocean and atmosphere and most importantly, the ocean's role in the global carbon cycle. A decade later, Feldman said, "SeaWiFS has exceeded everyone's expectations."


'/>"/>

Contact: Lynn Chandler
lynn.chandler-1@nasa.gov
301-286-2806
NASA/Goddard Space Flight Center
Source:Eurekalert

Related biology news :

1. Research shows smoking adds a decade to reproductive age of IVF patients
2. New tiger report release: Tiger habitat down from just a decade ago
3. Survivors of childhood polio do well decades later as they age
4. Chronic pain up almost 40 percent among US workers in past decade
5. New findings blow a decade of assumptions out of the water
6. Scientists find fossil proof of Egypts ancient climate
7. Small species back-up giant marsupial climate change extinction claim
8. Africa to take it on chin again with climate change
9. Ocean climate predicts elk population in Canadian Rockies
10. Deep sea algae connect ancient climate, carbon dioxide and vegetation
11. Climate model links higher temperatures to prehistoric extinction
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:1/18/2017)... 18, 2017  In vitro diagnostic (IVD) companies were ... acquisitions (M&A), and Kalorama Information expects that trend to ... been shifting. Generally, uncertainty in reimbursement and healthcare reform ... has changed the acquisitions landscape. Instead of looking to ... buying partners outside of their home country and also ...
(Date:1/13/2017)... , Jan. 13, 2017 Sandata ... solutions for the homecare industry, including Electronic Visit ... industry expert, Justin Jugs, as Senior Vice President ... than 15 years of homecare experience to Sandata, ... developing strategic plans to align Sandata,s suite of ...
(Date:1/12/2017)... Jan. 12, 2017  New research undertaken by Fit ... the future.  1,000 participants were simply asked which office technology ... we may consider standard issue.  Insights on what will ... also gathered from futurists and industry leaders including Penelope ... Canton .  Some of these findings ...
Breaking Biology News(10 mins):
(Date:1/19/2017)... ... January 19, 2017 , ... FireflySci Inc. is a go-getter type of company ... is accounted to two main factors. The first is the amazing customer service ... supplying FireflySci products all around the world. , 2016 was a tremendous sales year ...
(Date:1/19/2017)... -- BD (Becton, Dickinson and Company) (NYSE: BDX ), ... a live webcast of its Annual Meeting of Shareholders on Tuesday, ... webcast can be accessed from the BD corporate website at ... 2017. ... BD BD is a global medical technology company that is ...
(Date:1/18/2017)... --  Parent Project Muscular Dystrophy (PPMD) , a nonprofit ... dystrophy (Duchenne) , today announced a $600,000 grant to ... (NJIT) and Talem Technologies (Talem) as part of the ... assist people living with Duchenne. PPMD is funding a ... computer, software, a force sensor and a motor – ...
(Date:1/18/2017)... , ... January 18, 2017 , ... ... paralysis, today announced that it has submitted a 510(k) to the FDA, requesting ... utilize MYOLYN’s patent-pending functional electrical stimulation (FES) technology. , The submission marks ...
Breaking Biology Technology: