In the Climate Observations division we study the global and regional
atmospheric composition using satellite observations of trace gases, aerosols
and clouds. The observations contribute to monitoring and research of Climate,
Ozone, and Air Quality. The main satellite instruments used in our division are
OMI, GOME, GOME2, SCIAMACHY and SEVIRI. We develop calibration and retrieval
algorithms for these instruments, and process and distribute the satellite data
to users, e.g. via TEMIS, in collaboration with international partners. To
validate the satellite observations and to provide local monitoring we also
operate several ground-based instruments, like the Brewer, the ozone sonde and
the NO2 sonde. Our division has the Principal Investigatorship for the
Dutch-Finnish instrument OMI, launched in 2004 on NASA's EOS-Aura satellite,
and for the Dutch-ESA instrument TROPOMI, to be launched early in 2016 on ESA's
Sentinel-5 Precursor satellite.
A thirty year time series of the ozone hole (left) and a global air
pollution map of NO2 (right).
2015-05-11: Using self-organising maps to explore ozone profile validation results - SCIAMACHY limb vs lidar
In this study we use self-organising maps to study possible origins of differences between two datasets that describe the same phenomenon.Read more...
2015-04-20: Analysis of actinic flux profiles measured from an ozonesonde balloon
A green light sensor has been developed at KNMI to measure actinic flux profiles using an ozone sonde balloon.Read more...
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2015-04-16: Improved spectral fitting of nitrogen dioxide from OMI in the 405 - 465 nm window
An improved nitrogen dioxide (NO2) slant column density retrieval for the Ozone Monitoring Instrument (OMI) in the 405-465 nm spectral region is presented.Read more...