CINDI-3 Campaign

Set-up & scientific goals

In the period May-June 2024 the third CINDI-campaign took place at Cabauw, the Netherlands. Instruments from 25 institutes measured a number of key atmospheric pollutants with a focus on NO2, Ozone. During this instrument intercomparison campaign, the main goals were the intercalibration of UV-Vis (MAX-)DOAS sensors and intercomparison of nitrogen dioxide measuring instruments.

CINDI stands for Cabauw Intercomparison of Nitrogen Dioxide Measuring Instruments. This third campaign followed six years after CINDI-2, when researchers from all over the world also travelled to Cabauw to compare and calibrate their instruments.

Participating institutes and responsible scientists

  • Agencia Estatal de Meteorolgia, Spain (AEMET): Alberto Redondas
  • Anhui Institute of optics and Fine Mechanics, Hefei, China (AIOFM): Pinhua Xie, Ang Li Anhui
  • Italian National Research Council, Bolgna, Italy (CNR-ISAC): Elisa Castelli
  • Dunarea De Jos University of Galati, Romania: Daniel Constantin
  • Instituto Nacional de Técnica Aeroespacia (INTA), Spain: Monica Navarro Comas
  • Laboratoire Atmosphères, Milieux, Observations Spatiales, France (LATMOS): Andrea Pazmino
  • Laboratoire d’Optique Atmosphérique, Lille, France (LOA): Philippe Goloub
  • LuftBlick Earth Observation Technologies, Innsbruk, Austria: Alex Cede
  • MPIC Mainz, Germany: Thomas Wagner; Steffen Ziegler
  • NASA GSFC, USA: John Sullivan
  • NIER and PKNU (Pukyong National University): Hyunkee Hong, Gyeong Park
  • Royal Belgian Institute for Space Aeronomy, Belgium: Emmanuel Dekemper; Michel Van Roozendael
  • Rutherford Appleton Laboratory, United Kingdom (RAL): Ka Lok Chan
  • Universidad Nacional Autónoma de México, Mexico: Claudia Rivera
  • University of Bremen, Germany: Andreas Richter
  • University of Evora, Institute of Earth Science, Portugal: Daniele Bortoli
  • University of Heidelberg, Germany: Udo Friess
  • University of Suwon, South Korea: Hyeong-Ahn
  • University of Thessaloniki, Greece (AUTH): Dimitris Karagkiozidis
  • University of Toronto, Canada: Kim Strong
  • Virginia Polytechnic Institute and State University, USA (Virginia Tec): Elena Lindt

Impressions of the CINDI-3 campaign

 

Instrument deployment during CINDI-3 (similar to CINDI-2): Array of containers on the Cabauw Remote-sensing site (intercalibration); large number of ancillary measurements, mobile systems for trace gases and aerosols.
View of the array of containers on the Cabauw Remote-sensing site used for the intercalibration experiment during CINDI-3.
Different spectrometers (based on differential optical absorption spectroscopy (DOAS)) are operated from the roof of the container stack during CINDI-3.

Pandora spectrometer instrument spectroscopy is used to measure columnar amounts of trace gases in the atmosphere. These gases (e.a. O3, NO2) absorb specific wavelengths of light from the sun in the ultraviolet-visible spectrum. Using the theoretical solar spectrum as a reference, Pandora determines trace gas amounts using differential optical absorption spectroscopy (DOAS).

Contacts & additional info

For further inquiries, please contact:
Arnoud Apituley – campaign PI (apituley@knmi.nl)