Navigation Links
ESA's sharp eyes on coastal waters
Date:2/9/2011

Our growing reliance on coastal waters for food, trade and tourism means that these delicate ecosystems need to be more closely monitored to guarantee their future sustainability.

ESA's CoastColour project is helping scientists develop techniques to take full advantage of the unique capabilities of the Medium Resolution Imaging Spectrometer (MERIS) sensor on its Envisat satellite.

With a resolution of 300 m, MERIS provides the sharpest view of coastal waters to date, and includes spectral bands specially designed to characterise the complex mixing of pollutants, suspended sediments and phytoplankton typically found in coastal zones.

Stressing the need for information to help manage these ecosystems, more than 40 user organisations have already signed up to the CoastColour project, which is now processing MERIS data with state-of-the-art techniques over 27 high-priority coastal regions selected by users worldwide.

Dr Arnold Dekker from Australia's Commonwealth Scientific and Industrial Research Organisation is working with CoastColour to develop techniques to monitor the health of Australia's Great Barrier Reef.

During the wet season large plumes of sediment-laden river water flows into the reef lagoon. Sediments can smother corals and deprive them of the sunlight they need to survive, while river-borne nutrients may influence the frequency of naturally occurring algal blooms.

"ESA is to be commended for supporting the use of Earth observation to help solve the management issues of these truly complex coastal aquatic ecosystems," Dr Dekker said.

MERIS data are being used to monitor harmful algal booms along the west coast of South Africa in the Southern Benguela upwelling system. Red tides and algal blooms with extremely high phytoplankton concentrations frequently occur in the region's bays, threatening fisheries and tourism.

Dr Stewart Bernard of the Council for Scientific and Industrial Research is developing systems aiming to integrate the satellite data with hydrodynamic models to monitor and predict harmful algal blooms operationally.

Coastal resource managers and the aquaculture industry in the region greatly need these predictions to minimise risks to public safety and financial losses, according to Dr Bernard.

"The involvement of local scientists in CoastColour has already increased South Africa's technical ocean-colour capability, and is expected to significantly aid the implementation of the ocean-colour components of developing African operational oceanography systems."

In the Baltic Sea, the sustainable development of seaports requires shipping channels to be dredged every two years.

Dredging mixes large amounts of suspended sediments into the water, affecting coastal water quality which is regulated by internationally agreed standards.

Dr Liis Sipelgas of the Tallinn University of Technology is working with the Port of Tallinn, which runs four harbours on the Estonian coast, to understand the environmental impact of their dredging operations by mapping sediment plumes.

"The new site-specific CoastColour water quality products improve significantly the operational environmental monitoring of harbour dredging activities," Dr Sipelgas said.

"The products also enable us to estimate and quantify the long-term water quality changes in the harbour area."


'/>"/>

Contact: Simon Pinnock
Simon.Pinnock@esa.int
European Space Agency
Source:Eurekalert

Related medicine news :

1. When Seniors Tutor Kids, They Sharpen Their Own Minds As Well
2. SharpLogic Announces Launch Of SpeakFlow Non-Linear Presentation Suite At SpeakFlow.com
3. The Newest Concept in Knife Sharpening
4. Statement From Reverend Al Sharpton, Former Congressman J.C. Watts, and Dr. Gary A. Puckrein on the Meeting Between the Congressional Black Caucus and the White House
5. SharpBrains Launches First Brain Fitness Innovation Awards to Recognize Neuroplasticity Pioneers
6. Motorcycle Fatalities Drop Sharply in U.S.
7. Poker Players May Use Drugs to Stay Sharp at the Table
8. SNM sharpens focus on molecular imaging innovation and translation
9. Staying sharp in Philadelphia
10. Minneapolis Study Points to Sharp Drop in Smoking Rates
11. Anti-depressants bring higher risk of developing cataracts: UBC-Vancouver Coastal Health research
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/8/2016)... ... December 08, 2016 , ... Coppin Insurance Agency, an insurance and financial planning ... the Cape Coral area, is embarking on a charity drive with the goal of ... The Harry Chapin Food Bank of Southwest Florida works to provide fresh and nutritious ...
(Date:12/8/2016)... ... December 08, 2016 , ... Bill Mull Agencies, a ... in and around central Kansas, is joining the Youth Horizons organization for a ... , Headquartered in Wichita, Youth Horizons works to empower area children from unstable, ...
(Date:12/7/2016)... ... December 07, 2016 , ... "Today, MHA and mental ... mental health systems reform legislation in more than fifty years. We applaud the ... of our elected officials to improving mental health services and supports in our ...
(Date:12/7/2016)... ... December 07, 2016 , ... Silhouette Instalift is a ... smoothing and tightening the skin of the face to create more youthful features. ... with very little downtime, Silhouette Instalift is a novel, minimally invasive facial procedure ...
(Date:12/7/2016)... ... December 07, 2016 , ... ... Technology, S.L. (“Presence”) for a purchase price of approximately $17.4 million (net ... Presence’s annual revenue is approximately $13.2 million. Headquartered in Barcelona, Spain, Presence ...
Breaking Medicine News(10 mins):
(Date:12/8/2016)... de dezembro de 2016  A Mederi Therapeutics Inc . anunciou aprovação ... não cirúrgico para a doença do refluxo gastroesofágico (DRGE). Foto -  ... ... Live Stretta procedure performed and broadcast during the Chinese ... Union Hospital , ...
(Date:12/8/2016)... , Dec. 8, 2016 Bodycad announced ... for improving the accuracy, reproducibility and speed for ... long and small bone orthopaedic applications. These patents ... creating personalized orthopaedic restorations based on each patient,s ... restorations, the company harnesses the world,s first suite ...
(Date:12/8/2016)... , Dec. 8, 2016  Valeant Pharmaceuticals International, ... VRX) ("Valeant") today announced positive results from a ... to assess the safety and efficacy of IDP-118 ... of plaque psoriasis. Within the ... moderate to severe psoriasis, IDP-118 showed statistical significance ...
Breaking Medicine Technology: