Archief OMI Nieuws in 2005
Overzicht van de nieuws berichten in 2005 (inclusief Engelstalige berichten)
2005
Europe's pollution hotspots shown
Date: 9 December 2005Dutch 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: 8 December 2005Thanks 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 ...
NASA's Aura Satellite Peers Into Earth's Ozone Hole
Date: 7 December 2005NASA 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: 10 November 2005On 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 ...
OMI-satellietmetingen luchtvervuiling direct op internet
Datum: 18 oktober 2005Iedere belangstellende kan vanaf vandaag de actuele metingen van de luchtvervuiling op deze site volgen. De metingen van het vorig jaar gelanceerde satelliet meetinstrument OMI zijn nu on-line beschikbaar. Lees meer ...
Daily on-line measurements by OMI of tropospheric NO2 above Europe
Date: 18 October 2005Since 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 ...
OMI meet luchtvervuiling van bosbranden in Portugal
Datum: 26 augustus 2005Portugal 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: 24 August 2005OMI 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 ...
New Measurements of Arctic Ozone
Date: 21 June 2005The 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
Datum: 26 mei 2005De 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
Datum: 9 mei 2005Metingen 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 ...
Explosive eruption of Anatahan volcan
Date: 4 May 2005Explosive 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 ...
Weerbericht van de luchtkwaliteit
Datum: 2 May 2005Verbeterde satellietmetingen van luchtvervuiling bieden de mogelijkheid voor nieuw soort weerbericht, zoals een dagelijkse verwachting voor de luchtkwaliteit. Lees meer ...
OMI Sees the Soot Within Smoke
Date: 13 April 2005In 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 ...
Eruption of Anatahan volcano
Date: 31 January 2005A 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 January 2005When 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 January 2005What 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 January 2005An 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 ...