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  • richardmitnick 12:48 pm on November 11, 2019 Permalink | Reply
    Tags: "Ozone hole set to close", , , , , , , ESA Copernicus Sentinel-5P, United space in Europe   

    From European Space Agency – United space in Europe: “Ozone hole set to close” 

    ESA Space For Europe Banner

    From European Space Agency – United space in Europe

    08/11/2019

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    The size of the ozone hole fluctuates – usually forming each year in August, with its peak in October, before finally closing in late November or December. Not only will the hole close earlier than usual in 2019, but it is also the smallest it has been in 30 years owing to unusual atmospheric conditions.

    Forecasts from the Copernicus Atmosphere Monitoring Service (CAMS), which uses total ozone measurements from the Copernicus Sentinel-5P mission processed at the German Aerospace Center, have forecasted that this year’s ozone hole will close sooner than usual.

    Antje Inness, CAMS Senior Scientist commented, “The ozone hole’s maximum extent this year was around 10 million sq km, less than half of the size the ozone hole usually reached in the last decades. This makes it one of the smallest ozone holes since the 1980s. Our CAMS ozone forecasts predict that the ozone hole will close within a week.”

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    Ozone Forcast Charts

    ESA’s mission manager for Copernicus Sentinel-5P, Claus Zehner, noted, “This record-breaking small ozone hole size and duration during 2019 was caused by a warming of the stratosphere over the South Pole. However, it’s important to note that this is an unusual event and does not indicate that the global ozone recovery is speeding up.”

    ESA Copernicus Sentinel-5P

    Large fluctuations in polar vortices and temperatures in the stratosphere lead to ozone holes that vary in size. This year, the warmer polar stratosphere caused a slowing down of the wind fields around the South Pole, or the polar vortex, and reduced the formation of the ‘polar stratospheric clouds’ that enable the chemistry that leads to rapid ozone loss.

    Josef Aschbacher, ESA’s Director of Earth Observation programmes, said, “The ozone hole is a perfect example where scientific evidence led to significant policy change and subsequently changes in human behaviour. The ozone hole was discovered in the 1970s, continuously monitored from space and by in situ devices and, finally in the 1980s led to the Montreal Protocol forbidding the use of chlorofluorocarbons.

    “Today, the ozone hole is recovering thanks to clear political action. This example shall serve as inspiration for climate change.”

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    The animation shows the size of the ozone hole in 2019 compared to 2018

    High up in the stratosphere, the ozone acts as a shield to protect us from the Sun’s harmful ultraviolet radiation, which is associated with skin cancer and cataracts, as well as other environmental issues.

    In the 1970s and 1980s, the widespread use of damaging chlorofluorocarbons in products such as refrigerators and aerosol tins damaged ozone high up in our atmosphere – which led to a hole in the ozone layer above Antarctica.

    In response to this, the Montreal Protocol was created in 1987 to protect the ozone layer by phasing out the production and consumption of these harmful substances, which is leading to a recovery of the ozone layer.

    Recovery of the ozone hole will continue over the coming years. In the 2018 Scientific Assessment of Ozone Depletion, data shows that the ozone layer in parts of the stratosphere has recovered at a rate of 1-3% per decade since 2000. At these projected rates, the Northern Hemisphere and mid-latitude ozone is predicted to recover by around 2030, followed by the Southern Hemisphere around 2050, and polar regions by 2060.

    ESA has been involved in monitoring ozone for many years. Launched in October 2017, Copernicus Sentinel-5P satellite maps a multitude of air pollutants around the globe. With its state-of-the-art instrument, Tropomi, it is able to detect atmospheric gases to image air pollutants more accurately and at a higher spatial resolution than ever before from space.

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    Ozone hole duration and extension as monitored by CAMS

    See the full article here .


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    Please help promote STEM in your local schools.

    Stem Education Coalition

    The European Space Agency (ESA), established in 1975, is an intergovernmental organization dedicated to the exploration of space, currently with 19 member states. Headquartered in Paris, ESA has a staff of more than 2,000. ESA’s space flight program includes human spaceflight, mainly through the participation in the International Space Station program, the launch and operations of unmanned exploration missions to other planets and the Moon, Earth observation, science, telecommunication as well as maintaining a major spaceport, the Guiana Space Centre at Kourou, French Guiana, and designing launch vehicles. ESA science missions are based at ESTEC in Noordwijk, Netherlands, Earth Observation missions at ESRIN in Frascati, Italy, ESA Mission Control (ESOC) is in Darmstadt, Germany, the European Astronaut Centre (EAC) that trains astronauts for future missions is situated in Cologne, Germany, and the European Space Astronomy Centre is located in Villanueva de la Cañada, Spain.

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  • richardmitnick 11:17 am on July 12, 2018 Permalink | Reply
    Tags: Air pollutants, , , ESA Copernicus Sentinel-5P   

    From ESA: Copernicus Sentinel-5P releases first data 

    ESA Space For Europe Banner

    From European Space Agency

    11 July 2018

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    These first maps show a range of trace gases that affect air quality such as carbon monoxide, nitrogen dioxide and ozone.

    ESA Copernicus Sentinel-5P

    Following months of tests and careful evaluation, the first data on air pollutants from the Copernicus Sentinel-5P satellite have been released. These first maps show a range of trace gases that affect air quality such as carbon monoxide, nitrogen dioxide and ozone.

    Launched on 13 October 2017, Sentinel-5P is the first Copernicus satellite dedicated to monitoring our atmosphere. It is part of the fleet of Sentinel missions that ESA develops for the European Union’s environmental monitoring Copernicus programme managed by the European Commission.

    ESA Sentinels (Copernicus)

    Philippe Brunet, Director of Space Policy, Copernicus and Defence at the European Commission, welcomed the release and accuracy of the new data, which has shone a light on air pollution on a global scale.

    “These first data are another milestone for our Copernicus programme. They show how Sentinel-5P is set to make a real difference in monitoring air quality and highlight European Union’s contribution to combatting the global issue of air pollution.”

    As poor air quality continues to prematurely claim the lives of millions of people every year, it is more important than ever that we find better and more accurate ways of monitoring the air we breathe.

    Thanks to its Tropomi instrument – the most advanced multispectral imaging spectrometer to date – Sentinel-5P can zoom down to the surface of Earth and deliver highly detailed and accurate data about the atmosphere.

    With a resolution of up to 7 x 3.5 km, it can even detect air pollution over individual cities.

    See the full article here .


    five-ways-keep-your-child-safe-school-shootings
    Please help promote STEM in your local schools.

    Stem Education Coalition

    The European Space Agency (ESA), established in 1975, is an intergovernmental organization dedicated to the exploration of space, currently with 19 member states. Headquartered in Paris, ESA has a staff of more than 2,000. ESA’s space flight program includes human spaceflight, mainly through the participation in the International Space Station program, the launch and operations of unmanned exploration missions to other planets and the Moon, Earth observation, science, telecommunication as well as maintaining a major spaceport, the Guiana Space Centre at Kourou, French Guiana, and designing launch vehicles. ESA science missions are based at ESTEC in Noordwijk, Netherlands, Earth Observation missions at ESRIN in Frascati, Italy, ESA Mission Control (ESOC) is in Darmstadt, Germany, the European Astronaut Centre (EAC) that trains astronauts for future missions is situated in Cologne, Germany, and the European Space Astronomy Centre is located in Villanueva de la Cañada, Spain.

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