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| Titel |
Air Quality Observations from Space: Results from the Ozone Monitoring Instrument (OMI) and Expected Results from the TROPOspheric Monitoring Instrument (TROPOMI) |
| VerfasserIn |
J. P. Veefkind, K. F. Boersma, R. van der A, H. Eskes, Q. Kleipool, N. Krotkov, I. Aben, J. de Vries, P. Ingmann, J. Tamminen, J. Joiner, P. K. Bhartia, P. F. Levelt |
| Konferenz |
EGU General Assembly 2012
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 14 (2012) |
| Datensatznummer |
250062029
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| Zusammenfassung |
| Air quality is one of the largest societal challenges, especially in large urbanized and
industrialized regions of the world. Reduced air quality has adverse health effects, and also
results in reduced crop yields. In addition, there are strong links between air quality and
climate change. Air quality has traditionally been monitored by ground-based networks. In
the previous decade the observation capabilities have been extended with measurements from
space, most notable from the Ozone Monitoring Instrument (OMI), the SCanning Imaging
Absorption spectroMeter for Atmospheric CartograpHY (SCIAMACHY) and the Global
Ozone Monitoring Experiment (GOME-1/2).
Whereas the satellite instruments do not provide concentrations at the surface level, they
provide unique global information on the spatial distribution and transport of pollutants. Over
the last decade the quality of the satellite data for tropospheric species like nitrogen
dioxide, carbon monoxide, sulfur dioxide, formaldehyde and aerosols have matured
rapidly. Several data products now contribute to the monitoring and forecasting of air
quality through data assimilation techniques, as for example developed in the MACC
(http://www.gmes-atmosphere.eu/) project. Apart from directly contributing through data
assimilation, satellite data are also used for the top-down quantification of emission sources
and understanding of atmospheric processes, thus improving chemistry transport
models.
The OMI instrument, which was launched in July 2004, was the first instrument that
combined daily global coverage with high spatial resolution of 13x24 km2 at nadir.
The OMI data have attracted many new users and have resulted in several new
applications. The TROPOMI instrument on the ESA/GMES Sentinel 5 precursor
satellite, planned for launch in 2015, will be the first in a series of European satellite
sensors dedicated for monitoring atmospheric composition changes in the timeframe
2015-2030. The TROPOMI instrument has a heritage to both OMI and SCIAMACHY.
With a spatial resolution as high as 7x7 km2, higher signal-to-noise and extended
spectral coverage, TROPOMI will provide exciting new information on the changing
composition of the troposphere. The planned formation flying with the US afternoon
NPP/JPSS satellites will enable important synergies, including the usage of high
spatial resolution imager (VIIRS) data for enhanced cloud clearing of the TROPOMI
data. The availability of the morning EUMETSAT MetOp (GOME-2 and IASI)
operational observations will provide complementary information on the diurnal
variability.
In this contribution an overview will be given of successes of OMI for air quality monitoring
and research. In addition, the European satellite missions for atmospheric composition within
the ESA/GMES Sentinel programme will be presented, with a focus on the TROPOMI
instrument design and performance status. |
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