A new dataset of vertical column densities of H2O and HDO retrieved from short-wave infrared reflectance measurements by the TROPOMI instrument onboard the Sentinel-5p satellite was recently released. The data quality shows improvements in noise level compared to previous missions like SCIAMACHY. The retrieval methodology, the validation approach and demonstrative applications of the dataset are presented in a scientific paper by Andreas Schneider et el. [1] published in Atmospheric Measurement Techniques earlier this month (Jan 2020).
The TROPOMI HDO data set from this study is available for download at ftp://ftp.sron.nl/open-access-data-2/TROPOMI/tropomi/hdo/9_1/ .
This research was partially supported by the ESA Living Planet Fellowship project Water vapour Isotopologues from TROPOMI (WIFT).
[1] A. Schneider, T. Borsdorff, J. aan de Brugh, F. Aemisegger, D. G. Feist, R. Kivi, F. Hase, M. Schneider, J. Landgraf, “First data set of H2O/HDO columns from the Tropospheric Monitoring Instrument (TROPOMI)”, Atmos. Meas. Tech., 13, 85–100, 2020, https://doi.org/10.5194/amt-13-85-2020
Featured image : Global plot of δD averaged over September 2018 on a 0,5° x 0,5° grid. The average of δD is weighted with the H2O column for mass conservation purposes.