Articles | Volume 20, issue 19
Atmos. Chem. Phys., 20, 11223–11244, 2020
https://doi.org/10.5194/acp-20-11223-2020
Atmos. Chem. Phys., 20, 11223–11244, 2020
https://doi.org/10.5194/acp-20-11223-2020

Research article 01 Oct 2020

Research article | 01 Oct 2020

Trends of atmospheric water vapour in Switzerland from ground-based radiometry, FTIR and GNSS data

Leonie Bernet et al.

Data sets

Studies in Atmospheric Radiative Transfer and Water Vapour Effects STARTWAVE http://www.iapmw.unibe.ch/research/projects/STARTWAVE/

MERRA-2 instM_2d_int_Nx: 2d, Monthly mean, Instantaneous, Single-Level, Assimilation, Vertically Integrated Diagnostics V5.12.4 Global Modeling and Assimilation Office (GMAO) https://doi.org/10.5067/KVTU1A8BWFSJ

ERA5 monthly averaged data on single levels from 1979 to present Copernicus CDS https://doi.org/10.24381/cds.f17050d7

ERA5 monthly averaged data on pressure levels from 1979 to present Copernicus CDS https://doi.org/10.24381/cds.6860a573

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Short summary
With global warming, water vapour increases in the atmosphere. Water vapour is an important gas because it is a natural greenhouse gas and affects the formation of clouds, rain and snow. How much water vapour increases can vary in different regions of the world. To verify if it increases as expected on a regional scale, we analysed water vapour measurements in Switzerland. We found that water vapour generally increases as expected from temperature changes, except in winter.
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