Journal cover Journal topic
Earth System Science Data The Data Publishing Journal
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 4.0 License.
Review article
28 Sep 2017
Review status
This discussion paper is a preprint. It is a manuscript under review for the journal Earth System Science Data (ESSD).
The ESA GOME-Evolution "Climate" water vapor product: A homogenized time-series of H2O columns from GOME/SCIAMACHY/GOME-2
Steffen Beirle1, Johannes Lampel1,a, Yang Wang1, Kornelia Mies1, Margherita Grossi2, Diego Loyola2, Angelika Dehn3, Anja Danielczok4, Marc Schröder4, and Thomas Wagner1 1Max-Planck-Institut für Chemie (MPI-C), Mainz, Germany
2German Aerospace Centre (DLR), Remote Sensing Technology Institute, Oberpfaffenhofen, Germany
3European Space Agency (ESA), ESRIN, Frascati, Italy
4Deutscher Wetterdienst (DWD), Offenbach, Germany
anow at: Institut für Umweltphysik (IUP), Universität Heidelberg, Germany
Abstract. We present time-series of the global distribution of water vapor columns over more than two decades based on measurements from the satellite instruments GOME, SCIAMACHY, and GOME-2 in the red spectral range. Particular focus is the consistency amongst the different sensors to avoid jumps from one instrument to another. This is reached by applying robust and simple retrieval settings consistently. Potentially systematic effects due to differences in ground pixel size are avoided by merging SCIAMACHY and GOME-2 observations to GOME spatial resolution, which also allows for a consistent treatment of cloud effects. In addition, the GOME-2 swath is reduced to that of GOME and SCIAMACHY to have consistent viewing geometries.

Remaining systematic differences between the different sensors are investigated during overlap periods and are corrected for in the homogenized time series. The resulting "Climate" product ( allows to study the temporal evolution of water vapor over the last 20 years on global scale.

Citation: Beirle, S., Lampel, J., Wang, Y., Mies, K., Grossi, M., Loyola, D., Dehn, A., Danielczok, A., Schröder, M., and Wagner, T.: The ESA GOME-Evolution "Climate" water vapor product: A homogenized time-series of H2O columns from GOME/SCIAMACHY/GOME-2, Earth Syst. Sci. Data Discuss.,, in review, 2017.
Steffen Beirle et al.
Steffen Beirle et al.

Data sets

The GOME-Evolution total column water vapor "climate" product (version 2.1)
S. Beirle, J. Lampel, Y. Wang, T. Wagner, M. Grossi, and D. Loyola
Steffen Beirle et al.


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