Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

First ozone and nitrogen dioxide measurements from MetOp-A

15.03.2007
The Global Ozone Monitoring Experiment-2 (GOME-2) on board MetOp-A launched in October 2006 and currently undergoing commissioning has delivered the first geophysical products for monitoring the Earth's ozone layer, and European and global air quality.

This marks the start of a long-term European commitment to monitor the recovery of the ozone layer and to support the monitoring and forecasting of air quality, both for European citizens and at a global level. The products have been developed by the German Aerospace Center (DLR) in partnership with EUMETSAT’s Satellite Application Facility on Ozone and Atmospheric Chemistry Monitoring (O3M SAF), which is coordinated by the Finnish Meteorological Institute (FMI). The O3M SAF generates, validates, archives and distributes atmospheric ozone, trace gases, aerosols and surface-ultraviolet radiation data products using measurements from MetOp-A.

GOME-2, a scanning spectrometer, follows on from successful GOME flown on ESA’s ERS-2 satellite launched in April 1995, and provides near-global coverage on a daily basis. The instrument measures profiles of atmospheric ozone and the distribution of other trace gases in the atmosphere. The instrument measures profiles of atmospheric ozone and the distribution of other trace gases in the atmosphere that are related to the depletion of ozone in the stratosphere, and to natural and anthropogenic sources of pollution.

The amount of surface ultraviolet radiation is also derived from GOME-2 measurements. The ozone layer at an altitude of 20-30 kilometres shields the Earth from harmful ultra-violet radiation. However, the depletion of this protective ozone layer, which is most noticeable over the Arctic and Antarctic regions, is of particular environmental concern. The resulting increased levels of ultraviolet radiation reaching the surface of the Earth can cause serious damage to human health, agriculture, forests and water ecosystems. High levels of atmospheric pollutants such as nitrogen dioxide produced by fossil fuel combustion, can damage respiratory health and contribute to acid deposition which harms soil and vegetation.

Global Ozone

The first image above shows total ozone in the atmosphere as measured by the GOME-2 instrument on 11 January 2007 during one day of successive orbits of MetOp-A. This picture illustrates the large variability within the ozone layer, with ozone-rich air at the northern mid-latitudes and smaller levels of ozone over the (sub)-tropical region. GOME-2 monitors the ozone layer amount from day to day on a global basis, and will track the evolution of the ozone-hole above Antarctica during austral spring.

Regional Nitrogen dioxide

The image shows total nitrogen dioxide in the atmosphere over Europe on 4 February 2007, as measured by the GOME-2 instrument on MetOp-A. Nitrogen dioxide is one of the most important contributors to air pollution. With the GOME-2 instrument, nitrogen dioxide can be measured worldwide on a daily basis, and at a city-size scale. Clearly visible in this picture are high tropospheric nitrogen dioxide concentrations over large urban and industrial areas of Europe. Note that the pollution patterns seen on a daily basis are also affected by the prevailing weather conditions and the resulting movement of clean and polluted air.

Mariangela D'Acunto | alfa
Further information:
http://www.esa.int/esaEO/SEMXQCQ08ZE_economy_0.html

More articles from Ecology, The Environment and Conservation:

nachricht Scientists team up on study to save endangered African penguins
16.11.2017 | Florida Atlantic University

nachricht Climate change: Urban trees are growing faster worldwide
13.11.2017 | Technische Universität München

All articles from Ecology, The Environment and Conservation >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Nanoparticles help with malaria diagnosis – new rapid test in development

The WHO reports an estimated 429,000 malaria deaths each year. The disease mostly affects tropical and subtropical regions and in particular the African continent. The Fraunhofer Institute for Silicate Research ISC teamed up with the Fraunhofer Institute for Molecular Biology and Applied Ecology IME and the Institute of Tropical Medicine at the University of Tübingen for a new test method to detect malaria parasites in blood. The idea of the research project “NanoFRET” is to develop a highly sensitive and reliable rapid diagnostic test so that patient treatment can begin as early as possible.

Malaria is caused by parasites transmitted by mosquito bite. The most dangerous form of malaria is malaria tropica. Left untreated, it is fatal in most cases....

Im Focus: A “cosmic snake” reveals the structure of remote galaxies

The formation of stars in distant galaxies is still largely unexplored. For the first time, astron-omers at the University of Geneva have now been able to closely observe a star system six billion light-years away. In doing so, they are confirming earlier simulations made by the University of Zurich. One special effect is made possible by the multiple reflections of images that run through the cosmos like a snake.

Today, astronomers have a pretty accurate idea of how stars were formed in the recent cosmic past. But do these laws also apply to older galaxies? For around a...

Im Focus: Visual intelligence is not the same as IQ

Just because someone is smart and well-motivated doesn't mean he or she can learn the visual skills needed to excel at tasks like matching fingerprints, interpreting medical X-rays, keeping track of aircraft on radar displays or forensic face matching.

That is the implication of a new study which shows for the first time that there is a broad range of differences in people's visual ability and that these...

Im Focus: Novel Nano-CT device creates high-resolution 3D-X-rays of tiny velvet worm legs

Computer Tomography (CT) is a standard procedure in hospitals, but so far, the technology has not been suitable for imaging extremely small objects. In PNAS, a team from the Technical University of Munich (TUM) describes a Nano-CT device that creates three-dimensional x-ray images at resolutions up to 100 nanometers. The first test application: Together with colleagues from the University of Kassel and Helmholtz-Zentrum Geesthacht the researchers analyzed the locomotory system of a velvet worm.

During a CT analysis, the object under investigation is x-rayed and a detector measures the respective amount of radiation absorbed from various angles....

Im Focus: Researchers Develop Data Bus for Quantum Computer

The quantum world is fragile; error correction codes are needed to protect the information stored in a quantum object from the deteriorating effects of noise. Quantum physicists in Innsbruck have developed a protocol to pass quantum information between differently encoded building blocks of a future quantum computer, such as processors and memories. Scientists may use this protocol in the future to build a data bus for quantum computers. The researchers have published their work in the journal Nature Communications.

Future quantum computers will be able to solve problems where conventional computers fail today. We are still far away from any large-scale implementation,...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Ecology Across Borders: International conference brings together 1,500 ecologists

15.11.2017 | Event News

Road into laboratory: Users discuss biaxial fatigue-testing for car and truck wheel

15.11.2017 | Event News

#Berlin5GWeek: The right network for Industry 4.0

30.10.2017 | Event News

 
Latest News

Corporate coworking as a driver of innovation

22.11.2017 | Business and Finance

PPPL scientists deliver new high-resolution diagnostic to national laser facility

22.11.2017 | Physics and Astronomy

Quantum optics allows us to abandon expensive lasers in spectroscopy

22.11.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>