Navigation Links
Climate studies to benefit from 12 years of satellite aerosol data
Date:11/10/2009

Aerosols, very small particles suspended in the air, play an important role in the global climate balance and in regulating climate change. They are one of the greatest sources of uncertainty in climate change models. ESA's GlobAerosol project has been making the most of European satellite capabilities to monitor them.

Using data from the Along Track Scanning Radiometer-2 on the ERS-2 satellite, the Advanced Along Track Scanning Radiometer and the Medium Resolution Imaging Spectrometer on Envisat and the Spinning Enhanced Visible & InfraRed Imager (SEVIRI) instrument on the Meteosat Second Generation, GlobAerosol has produced a global aerosol dataset going back to 1995. The full dataset is available on the GlobAerosol website. Some aerosols occur naturally, originating from sea-spray, wind-blown dust, volcanic eruptions and biochemical emissions from oceans and forests, while others are produced through emissions from industrial pollution, fossil-fuel burning, man-made forest fires and agriculture.

They are important because they strongly affect Earth's energy balance in two ways: they scatter and absorb sunlight and infrared emission from Earth's surface, and act as condensation nuclei for the formation of cloud droplets. According to the Intergovernmental Panel on Climate Change, these effects tend to cool the planet to almost the same degree as carbon dioxide emissions warm it. These estimates are uncertain, however, so more data are needed.

Satellite data can provide essential information on the global distribution of aerosols to help understand the impact of these processes for the purposes of predicting weather and climate as well as for monitoring the transport of industrial pollution.

To investigate the usefulness of the dataset, pilot studies were carried out by six atmospheric modelling groups from the European Centre for Medium-Range Weather Forecasts, the Laboratoire des Sciences du Climat et l'Environnement, the University of Leeds, the University of Edinburgh, the Max Planck Institute for Meteorology, and the Netherlands Organisation for Applied Scientific Research (TNO). Comparing the satellite data with the model predictions showed differences that helped to highlight deficiencies in both.

Results of the pilot studies were presented during ESA's Atmospheric Science Conference held in Barcelona, Spain, in September. Maria Grazia Frontoso, working on the development of the GLOMAP aerosol model at the University of Leeds in the UK said: "GlobAerosol seems to be a very useful tool to address uncertainties in global models."

Arjo Segers from TNO in the Netherlands compared GlobAerosol data with model predictions of desert dust and forest fires over the Iberian peninsular. "The results of this study suggest that the GlobAerosol SEVIRI dataset is especially useful for investigating aerosol levels over water."

Still, more work is needed to address the problems highlighted in the intercomparison study of the models, and to improve the overall accuracy of the satellite aerosol data. The valuable feedback obtained from the users will help to lay the foundation for the development of more accurate satellite-based aerosol measurements as part of ESA's new Climate Change Initiative.


'/>"/>

Contact: Mariangela D'Acunto
mariangela.dacunto@esa.int
39-069-418-0856
European Space Agency
Source:Eurekalert

Related medicine news :

1. Only Five States Have Plans to Address the Health Impact of Climate Change, New Report Finds
2. Health Care Without Harm Partners With Clinton Climate Initiative to Help Hospitals and Healthcare Facilities Reduce Environmental Impact
3. U-M Hospitals & Health Centers Weathers Tough Economic Climate, Plans for Growth
4. Climates Impacts on Water, Health are Critical Challenges
5. Bonus Payout Trends and Continuing Cost Controls Reflect Challenging Business Climate, Says Aon Consultings Radford
6. Researchers develop the first climate-based model to predict Dengue fever outbreaks
7. World Health Organization Says Health Sector Can Lead the Fight Against Climate Change
8. The Climate Project Brings Together Historic Gathering of World's Experts on Climate Change
9. Climate Change Could Sting Allergy, Asthma Sufferers
10. New Bill to Fund Climate Change and Public Health Preparedness Praised by Environmental and Health Groups
11. APHA Applauds Climate Change Bill That Will Help Protect Public Health
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/13/2017)... ... October 13, 2017 , ... The International ... promote standards of excellence for the field of eating disorders, announces the opening ... 25, 2018 in Orlando, Florida at the Omni Resort at ChampionsGate. ...
(Date:10/13/2017)... ... ... Lori R. Somekh, founder of the Law Office of Somekh & ... and special needs planning attorneys. “Membership in ElderCounsel helps our office remain up to ... with elder law attorneys nationwide,” said Somekh. , ElderCounsel was founded ...
(Date:10/13/2017)... ... October 13, 2017 , ... The Visiting Nurse Association (VNA) of ... collection of specialty vendors and unique items from across the nation, this holiday-themed event ... wellness services offered by the VNA. The boutique will be open Saturday, November ...
(Date:10/13/2017)... ... , ... Yisrayl Hawkins, Pastor and Overseer at The House of Yahweh, has ... least understood books in the Holy Scriptures, Revelation. The Book of Revelation paints a ... centuries. Many have tossed it off as mere rubbish, but Yisrayl Hawkins says that ...
(Date:10/13/2017)... ... October 13, 2017 , ... “The Journey: From the Mountains to ... to save lost souls in the Philippines. “The Journey: From the Mountains to the ... teacher of the Bible. She has taught all ages and currently teaches a class ...
Breaking Medicine News(10 mins):
(Date:10/11/2017)...  Hill-Rom Holdings, Inc. ("Hill-Rom") (NYSE: HRC), today provided ... Piedras, Puerto Rico , where the ... Following a comprehensive onsite ... structural damage, temporary loss of power and minimal water ... manufacturing operations have resumed, and the company expects to ...
(Date:10/4/2017)... 2017  South Korean-based healthcare product Development Company I.M. ... on Kickstarter. The device will educate the user about ... better efficiency compared to the dated and pricey CPR ... efficacy of the compression for a more informed CPR ... to raise $5,000. ...
(Date:10/2/2017)... , Oct. 2, 2017  AllianceRx Walgreens Prime, ... formed by Walgreens and pharmacy benefit manager Prime Therapeutics ... new brand, which included the unveiling of new signage ... , as well as at a few other company-owned ... new brand to patients, some of whom will begin ...
Breaking Medicine Technology: