Daily OMI tropospheric NO2 (air pollution) measurements over The Netherlands and Western Europe

Tropospheric NO2 (air pollution) over The Netherlands and Western Europe (last 24 hours)
The Netherlands and Western Europe air pollution (last 24 hours)

Today's satellite air quality measurements are available around 15:00 hours GMT for Europe. OMI (on the EOS-Aura satellite) passes over Europe around 12:45 hours (GMT) and it takes another 2-2.5 hours before the data are available here. The most recent air quality measurements can be viewed in Google Earth. The TEMIS web site contains a limited archive of air quality and air pollution Google Earth files.

Daily OMI tropospheric NO2 (air pollution) measurements over other regions in the world
Also available on the TEMIS web site.

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Satellietwaarnemingen van luchtvervuiling

Date: 31 12 2004

Het is medio oktober als de relatieve rust in de afdeling Atmosferische Samenstelling van het KNMI abrupt verstoord wordt. Gedurende bijna een week staat het onderzoek even stil. Onderzoekers rennen van de microfoon van Radio-1 naar de telefoon waar de schrijvende pers uiteenlopend van NRC Handelsblad tot en met de Apeldoornse Courant aan de lijn hangt. Ook het NOS- en RTL-journaal komen polshoogte nemen. Zelfs de grote oliemaatschappijen tonen veel belangstelling. Wat is er aan de hand? Is de ozonlaag ineens verdwenen? Zijn er oorzaken van plotselinge klimaatverandering vastgesteld? Lees meer ...

First Aura image: Aura Eyes Ozone Hole over Antarctica

Date: 18 12 2004

This image is the first publicly released image from the Aura mission. Acquired by the mission's Ozone Monitoring Instrument (OMI) on September 22, 2004, the image shows dramatically depleted levels of ozone in the stratosphere over Antarctica.

Read more ...

NASA Eyes Effects of a Giant 'Brown Cloud' Worldwide

Date: 15 12 2004

NASA scientists recently announced that a giant, smoggy atmospheric "brown cloud" that forms over South Asia and Indian Ocean has intercontinental reach, and has effects around the world.
Scientists studied the intercontinental smog or ozone processes associated with the "brown cloud" using a new NASA technique to combine data acquired by satellites with ozone data measured by instruments on special weather balloons. The brown cloud is a persistent, but moving, air mass characterized by a mixed-particle haze, typically brown in color. It also contains other pollution, such as ozone. Read more ...

NASA's Aura Satellite Sheds New Light on Air Quality and Ozone Hole

Date: 14 12 2004

Launched in July of 2004, the EOS-Aura satellite research platform is already providing the first-ever daily, direct global measurements of low altitude or tropospheric ozone and many other pollutants that affect our air quality. Moreover, Aura delivers its results with unprecedented clarity over a region. The instruments onboard will help scientists monitor pollution production and transport around the world.
Measurements taken from the satellite also offer the potential for new insights into how climate changes influence the recovery of the stratospheric or upper ozone layer, the protective region that shields the Earth from ultra-violet radiation. Read more ...

Eerste OMI resultaten laten grote dagelijkse variatie luchtvervuiling zien

Date: 23 11 2004

Dankzij satellieten is voor het eerst mogelijk om iedere dag de luchtvervuiling in Nederland en de rest van de wereld te zien tot op stadsniveau. Het blijkt dat in Nederland het verschil in luchtvervuiling van dag tot dag maar ook van plaats tot plaats sterk varieert. Dat zijn verrassende resultaten van het nieuwe satellietinstrument OMI, het Ozone Monitoring Instrument. Inmiddels stromen de eerste meetgegevens bij het KNMI in De Bilt binnen. Lees meer ...

Protecting our planet's ozone layer

Date: 03 10 2004

Monitoring our planet's atmosphere has become an international priority. As successive world summits have stressed, our future on Earth could depend on safeguarding our environment. EuroNews 'Space' magazine reports today from the Royal Netherlands Meteorological Institute (KNMI) which is using instruments on several satellites to follow the evolution of ozone around the planet.
Read more ...

Aura: A Mission Dedicated to the Health of Earth's Atmosphere

Date: 17 07 2004

On July 15, 2004 at 3:02 a.m., NASA launched the Aura satellite, the third flagship in a series of Earth-observing satellites designed to view Earth as a whole system, observe the net results of complex interactions within the climate system, and understand how the planet is changing in response to natural and human influences.

Aura was exclusively designed to study the composition, chemistry, and dynamics of the Earth’s upper and lower atmosphere by employing four instruments on a single platform. Each instrument provides unique and complementary capabilities that will enable daily global observations of Earth’s atmospheric ozone layer, air quality, and key climate parameters.

Read more ...

NASA Launches Aura Satellite (incl. launch animation movie)

Date: 16 07 2004

At 15 July 2004 NASA launched its Aura satellite from Vandenberg Air Force Base, California. On board 4 are 4 instruments (OMI, MLS, TES and HIRDLS). The purpose of the mission is to help us better understand and protect our world’s atmosphere.

Aura will help scientists answer three key questions: Is the Earth’s protective ozone layer recovering? What are the processes controlling air quality? How is the Earth’s climate changing?

Aura also will help scientists understand how the composition of the atmosphere affects and responds to Earth’s changing climate. The results from this mission will help scientists better understand the processes that connect local and global air quality. NASA expects early scientific data from Aura within 30-90 days.

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Aura Launched, To Better Understand The Air We Breathe

Date: 15 07 2004

Aura, a mission dedicated to the health of the Earth's atmosphere, was successfully launched today. This moment marks a tremendous achievement for the NASA family and our international partners. We look forward to the Aura satellite offering us historic insight into the tough issues of global air quality, ozone recovery and climate change, said NASA Associate Administrator for Earth Science Dr. Ghassem Asrar. Read more ...

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NASA Puts Safety First During Aura Launch

Date: 15 07 2004

NASA engineers and mission officials decided during multiple launch attempts this week to postpone the launch of the Aura satellite to put safety first for mission success. Aura, a mission dedicated to the health of the Earth's atmosphere, launched successfully this morning at 6:01:59 EDT (3:01:59 PDT). Read more ...

OMI met succes gelanceerd

Date: 15 07 2004

De Amerikaanse klimaatsatelliet AURA met aan boord het Nederlands-Finse Ozon Monitoring Instrument (OMI) is donderdagmiddag om 12.02 Nederlandse Tijd na een derde poging succesvol gelanceerd. Bij het KNMI, waar een kleine honderd genodigden de spannende lancering volgden, zijn daarna de champagneflessen ontkurkt.
Alle hobbels waar de lancering de vorige 2 dagen op bleef steken werden nu zonder problemen genomen en om 2 minuten over 12 vertrok de Delta II raket met NASA's EOS-Aura satelliet van de lanceerbasis Vandenberg Airforce Base in Californië. Lees meer ...

NASA Launch Advisory: Aura Launch Postponed

Date: 14 07 2004

The launch of NASA's Aura spacecraft atop a Boeing Delta II rocket was scrubbed this morning due to an issue with one of the two batteries on the second stage of the Delta II launch vehicle. At approximately three minutes before the scheduled liftoff time, as the batteries were being transferred to internal power, the battery current level dropped below prescribed limits, triggering a launch hold. Read more ...

NASA Plans to Put an Aura Around the Earth

Date: 03 06 2004

Earth's atmosphere sustains life in all these ways, and by the thinnest margins. If a person could cruise at a speed of 60 miles an hour straight up, it would take just 6 minutes to exit the air we need to survive. Considering the relatively delicacy of this thin protective film, understanding our atmosphere goes hand in hand with protecting life as we know it.
On June 19, NASA will launch Aura, a next generation Earth-observing satellite that will make global observations of the ocean of air that surrounds our planet. Aura will supply the best information yet about the health of Earth's atmosphere. Read more ...

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