World leading research in atmospheric monitoring to support climate action, reducing air pollution and the loss of biodiversity

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Clear air is a consortium of R&D organizations who make a contribution to the field of atmospheric monitoring.

We have a strong focus on the design and development of innovative satellite instruments, retrieval algorithms and the modeling of atmospheric chemistry and emissions.

Mission and Vision

The Clear Air consortium comprises of R&D organizations who are involved research and technology development for monitoring of the atmosphere. We aim at being globally outstanding for the use of satellite instrumentation and data products for the understanding and mitigation of climate change, air pollution and preservation of biodiversity.


The mission of Clear Air is to

  • To align Dutch national expertise and R&D efforts in this field;
  • To stimulate collaboration within the (inter)national Earth Observation community and across research domains;
  • To develop applications that can be used in and beyond the air quality and climate domain that will benefit science and society;
  • To broaden the use and thus impact of our knowledge and satellite data by policy makers and scientists alike;
  • To cooperate with the growing commercial space sector and data service providers market to allow spin-offs;
  • To develop a national Earth observation strategy and intensify the national space programme for Earth observation, including the development of new instruments.

Publications and press releases from or supported by Clear air

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EarthCARE satellite successfully launched

Lees meer over het artikel EarthCARE satellite successfully launched

The EarthCARE satellite, which is poised to revolutionise our understanding of how clouds and aerosols affect our climate with its four state-of-the-art instruments, has been launched successfully.

Long awaited cloud satellite to unravel missing links in atmosphere

Lees meer over het artikel Long awaited cloud satellite to unravel missing links in atmosphere

As the world goes on, an exciting time is dawning for climate scientists. For years, they have wanted more certainty about the warming and cooling mechanisms in the atmosphere due to the influence of different types of clouds and aerosols. After years of preparatory work, the new cloud satellite EarthCARE is going to rigorously bring more certainty to humanity about this.

PACE climate satellite releases first images

Lees meer over het artikel PACE climate satellite releases first images

NASA’s PACE climate satellite with the Dutch instrument SPEXone onboard now offers the world access to satellite images distinguishing types and sizes of aerosols. SPEXone also measures the extent to which aerosols absorb and reflect sunlight.

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SRON Netherlands Institute for Space Research (SRON), the Dutch national expertise institute for scientific space research, part of the Dutch Research Council NWO. The institute combines science, technology and engineering. Its scientific expertise is in atmospheric satellite remote sensing, in particular radiative transport and trace gas and aerosol retrieval algorithms and CO, methane, CO2 emission quantification. SRON develops enabling technology and space-qualified instrumentation spanning the range from X-ray to far-infrared wavelengths;


The Royal Netherlands Meteorological Institute (KNMI), an agency of the Ministry of Infrastructure and Water Management and the national research and information centre for weather and climate. KNMI is Principal Investigator of both OMI that flies on NASA’s Aura satellite (launched 2004), and TROPOMI: the satellite instrument on board of the Copernicus Sentinel-5 Precursor satellite (launched 2017) and expert in retrieval algorithm development for trace gases and aerosols and interpretation of satellite data for air quality and climate research
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The Netherlands Organisation for Applied Scientific Research (TNO), a TO2 institute and 30+ year developer and supplier of optical satellite instruments and systems (hardware) for aerospace among which instruments that measure the composition of the atmosphere from space. The institute also has strong expertise in satellite data utilisation (assimilation), for example for analyzing and monitoring emissions and air quality.
Logo TU Delft

TU Delft

Delft University of Technology (TU Delft), performing research, and engineering of end-to-end space systems. The university is ranked number 1 in Europe and top-5 worldwide on the subject of Aerospace Engineering. The university has also relevant expertise on atmospheric chemistry, data retrieval, supercomputing, and optical instrumentation. Its Climate and Delft Space Institute bring together the expertise of scientists across the university in the field of data-based climate knowledge for mitigation, adaptation, space instrumentation and policy.

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