Articles | Volume 16, issue 1
Research article
06 Jan 2023
Research article |  | 06 Jan 2023

TROPOMI/S5P Total Column Water Vapor validation against AERONET ground-based measurements

Katerina Garane, Ka Lok Chan, Maria-Elissavet Koukouli, Diego Loyola, and Dimitris Balis

Data sets

AERONET ground-based Level 2.0 Version 3 AERONET

Short summary
In this work, 2.5 years of TROPOMI/S5P Total Column Water Vapor (TCWV) observations retrieved from the blue wavelength band are validated against co-located precipitable water measurements from NASA AERONET, which uses Cimel Sun photometers globally. Overall, the TCWV product agrees well on a global scale with the ground-based dataset (Pearson correl. coefficient 0.909) and has a mean relative bias of −2.7 ± 4.9 % with respect to the AERONET observations for moderate albedo and cloudiness.