Exhibit 541 · Website

KNMI: Satellite observations

KNMI

MAX-DOAS: We perform MAX-DOAS measurements to measure the tropospheric NO2 column from the surface. MAX-DOAS instruments are installed in De Bilt, Rotterdam, and Nanjing (China). A Pandora instrument is installed in Cabauw. Data can be found in the KNMI Data Portal and in the FRM4DOAS portal.

1 double space marked in red. Copy the quote and you'll get the real spaces too.

Screenshot of KNMI: Satellite observations, with the double space marked in red. — Open the full-size photo in a new tab.