In the period May-June 2024 the third CINDI-campaign will take place at Cabauw, the Netherlands. Instruments from 25 institutes will measure a number of key atmospheric pollutants. During this instrument intercomparison campaign, the main goals are 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 follows six years after CINDI-2, when researchers from all over the world also travelled to Cabauw to compare and calibrate their instruments. Over the following weeks, researchers will have the opportunity to assess the consistency of instruments and certify (new) instruments with an external referee.