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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Archive OMI news


Smog in Northern Italy

Date: 23 12 2005

In northern Italy, smog collected at the base of the Alps in late December 2005. The Moderate Resolution Imaging Spectroradiometer (MODIS) flying onboard the Aqua satellite captured this image.

As reported by Scotsman.com and the BBC, in the fall of 2005, a team of researchers at KNMI assessed the worst areas of air pollution in Europe. The researchers used data from the Ozone Monitoring Instrument (OMI) on NASA’s Aura satellite. In that study, northern Italy proved to be one of Europe’s more polluted areas.

Read more ...

Europe's pollution hotspots shown

Date: 09 12 2005

Dutch OMI scientists are putting together remarkable maps showing pollution over Europe and other regions of the globe.
One map presented at the AGU conference, pulling together data gathered from May to September this year, showed expected high emissions over some of Europe's cities, and in particular over Antwerp, Rotterdam and the Ruhr. Read more ...

NASA Satellite Eyes Atmosphere to Improve Pollution and Climate Forecasting

Date: 08 12 2005

Thanks to the latest sophisticated, satellite-based instruments, local and regional air pollution and their sources can now be observed closely from space. Researchers using new, nearly up-to-the-hour data from NASA's Aura satellite are now tracking important pollutants such as ozone and nitrogen oxide. What's more, the satellite's first global observations of ice in clouds will provide climatologists, weather forecasters and public officials around the world the ability to make better predictions of future climate change. Read more ...

2005 Ozone Hole (incl. animations)

Date: 08 12 2005

The year 2005 marks the twentieth anniversary of the discovery of the ozone hole and the first full year that NASA’s Aura satellite has provided detailed images of the hole. Aura was launched in 2004 to monitor the Earth’s atmosphere, including the health of the delicate ozone layer. The Ozone Monitoring Instrument on Aura collected the data used to create this image on September 11, 2005, when the ozone hole covered 27 million square kilometers—its peak size for the season.

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NASA's Aura Satellite Peers Into Earth's Ozone Hole

Date: 07 12 2005

NASA researchers determined the seasonal ozone hole that developed over Antarctica this year is smaller than in previous years. NASA's 2005 assessment of the size and thickness of the ozone layer was the first based on observations from the Ozone Monitoring Instrument on the agency's Aura spacecraft. Read more ...

Sierra Negra Sulfur Dioxide Emissions

Date: 22 10 2005

On October 22, 2005, one of the six volcanic summits on Isla Isabela in the Galapagos Islands archipelago began erupting. The Sierra Negra Volcano continued to emit ash clouds and lava through the end of the month. This image shows the average concentration of sulfur dioxide over the Sierra Negra Volcano from October 23-November 1 measured by OMI. Read more ...

Daily on-line measurements by OMI of tropospheric NO2 above Europe

Date: 18 10 2005

Since Tuesday 18 October everyone can check today's measurements of air pollution by nitrogen dioxide. Tropospheric NO2 amounts derived from measurements of the satellite instrument OMI are available on the KNMI web site within three hours after the observation. Read more ...

Eruption of Santa Ana (Ilamatepec) Volcano

Date: 03 10 2005

On October 1, 2005, El Salvador’s Santa Ana, or Ilamatepec, Volcano erupted for the first time since 1904. Besides ash, lava, rocks as big as cars, and a boiling flood of muddy water, Santa Ana’s eruption produced something else: sulfur dioxide (SO2).

This image combines OMI’s SO2 observations of the Santa Ana Volcano taken on October 1 and 2, 2005. The total cloud mass on October 1 was estimated at 10,000 tons, a relatively small eruption.

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OMI meet luchtvervuiling van bosbranden in Portugal

Date: 26 08 2005

Portugal wordt al wekenlang geteisterd door grote bosbranden. Bij deze branden komen ook luchtvervuilende gassen als stikstofdioxide en fijne deeltjes (aërosolen) vrij. Op OMI metingen zijn die goed te zien. Lees meer ...

Black Carbon in Smoke over Alaska

Date: 25 08 2005

OMI measures smoke by tracking black carbon particles, or soot, that absorb ultraviolet (UV) radiation, even if the smoke is mixed with or floating above clouds. By measuring how much UV radiation the soot absorbs, OMI provides estimates of the amount of black carbon aerosol in the smoke layer. Measurements of how much radiation aerosols absorb are important for scientists trying to calculate the net effect of aerosols on Earth's energy budget and climate. Read more ...

Air Quality Emergency in Malaysia

Date: 10 08 2005

Out-of-control fires burning on the eastern shore of Sumatra created an air quality emergency for neighboring Malaysia in early August 2005 as smoke shrouded parts of the country. The smoke hung thickly over Malaysia’s busy capital, Kuala Lumpur, where it forced businesses, schools, and transportation to close. This image, created using data collected by OMI, shows the density of the smoke on August 10, 2005.

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Eruption of Anatahan - part 3

Date: 08 08 2005

As reported by the Saipan Tribune Website, the Anatan Volcano spewed volcanic ash to an altitude of nearly 13,000 meters in early August, prompting officials to issue a volcanic ash advisory for Saipan and Tinian in the Northern Mariana Islands. The volcano has emitted something besides ash: sulfur dioxide (SO2) gas, which was observed by OMI.

Between 25 and 31 July predominantly easterly winds carried the noxious SO2 emissions away from the populated islands. Between 2 and 8 August, however, changing winds allowed SO2 to accumulate over the Southern Mariana Islands and Guam.

Read more ...

New Measurements of Arctic Ozone

Date: 21 06 2005

The winter of 2004-2005 saw the second highest chemical ozone destruction ever observed over the Arctic. Despite this, the lowest total column ozone values in polar regions were slightly higher in March than in January, on average. Stratospheric winds carried the ozone north into the Arctic, compensating for the significant chemical loss. And even though ozone values appeared to be near normal on average throughout March, some regions experienced much lower ozone levels -- and therefore, a greater exposure to UV light -- on an individual day. Read more ...

Gegevens Ozonmeetinstrument OMI actueel op internet

Date: 26 05 2005

De actuele ozonmeetgegevens van het nieuwe Nederlands-Finse ozonmeetinstrument OMI zijn vanaf vandaag voor iedereen dagelijks via internet te volgen. De ruimtevaartorganisatie NASA heeft na grondig onderzoek naar de kwaliteit van de ozonmeetgegevens groen licht gegeven voor publicatie van de metingen. Op de NASA website http://toms.gsfc.nasa.gov zijn zowel data als beelden beschikbaar. Lees meer ...

Mondiale luchtvervuiling nauwkeuriger in kaart gebracht

Date: 09 05 2005

Metingen van luchtvervuiling met satellieten geven tegenwoordig een betrouwbaar beeld van de luchtkwaliteit, maar kunnen verder worden verbeterd. Op donderdag 12 mei a.s. verdedigt Folkert Boersma van het KNMI aan de Technische Universiteit Eindhoven (TU/e) zijn proefschrift over het meten van stikstofdioxiden met satellietinstrumenten. Lees meer ...

Eruption of Anatahan - part 2

Date: 04 05 2005

Explosive volcanic eruptions inject gases and ash into the Earth's atmosphere, creating hazardous conditions for passing aircraft and the potential for climate effects.
The above image of Anatahan shows sulfur dioxide concentrations in the atmosphere on April 7, 2005, over 30 hours after the eruption, as measured by EOS-Aura OMI and MLS instruments. Read more ...

OMI Sees the Soot Within Smoke

Date: 13 04 2005

In the summer of 2004, more than 6.7 million acres went up in flames in Alaska. Smoke spread as far as Texas and Newfoundland. On August 21, 2004, two NASA satellites observed thick layers of soot-laced smoke billowing from the fires: Aqua's Moderate Resolution Imaging Spectroradiometer (MODIS) and Aura's Ozone Monitoring Instrument (OMI). Read more ...

Sulfur Dioxide Seeps from the Ambrym Volcano

Date: 31 03 2005

Sandwiched between Fiji and Australia in the South Pacific, the island nation of Vanuatu hosted the strongest point source of sulfur dioxide on the planet for the first months of 2005. Ambrym Volcano, on the island of the same name, has been steadily emitting sulfur dioxide for at least six months, and this image, produced using data collected by the Ozone Monitoring Instrument on NASA’s Aura satellite during the first ten days of March 2005, shows high concentrations of sulfur dioxide drifting northwest from the volcano.

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Eruption of Anatahan - part 1

Date: 31 01 2005

A long plume of sulfur dioxide extends northeast and southwest of the Anatahan volcano in the Northern Mariana Islands in the western Pacific Ocean. The volcano has been erupting almost continuously since January 5, 2005, when it started its third eruption in recorded history.
This image, collected by the Ozone Monitoring Instrument on NASA's Aura satellite, shows sulfur dioxide concentrations in the atmosphere between January 31 and February 4, 2005. Read more ...

Continued eruption of Manam volcano

Date: 28 01 2005

When the Manam volcano erupted explosively in the middle of the night on January 27, 2005, it sent a cloud of ash and sulfur dioxide over New Guinea. The large eruption killed at least one person, injured several others, and destroyed the volcano monitoring station on the small volcanic island. About 12 hours after the eruption (January 28), the Ozone Monitoring Instrument (OMI) flew over on NASA's new Aura satellite. This image was produced from preliminary, uncalibrated data provided by OMI. Read more ...

Dutch schools help scientists validate aerosol measurements via GLOBE project

Date: 25 01 2005

What if, every day, a global network of students collected and shared measurements of small solid and liquid particles suspended in the atmosphere? Known as "aerosols" these tiny particles are important because some of them cool Earth's climate, and some of them impair human health. Read more ...

Up In The Air

Date: 12 01 2005

An interview in the Illinois Wesleyan Magazine with Richard Cebula, manager of the NASA-contracted team responsible for OMI's data processing system, and member of the U.S. OMI Science Team. Read more ...

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