Quantifying sensitivity of aerosol-cloud interactions to atmospheric state through cluster analysis

Student report (2022)

Authors

W.S.J. Kroese Civil Engineering & Geosciences

Contributors

Bastiaan van Diedenhoven SRON Netherlands Institute for Space Research (supervisor 1)
F. Glassmeier Atmospheric Remote Sensing - CEG (supervisor 1)
O. Hasekamp SRON Netherlands Institute for Space Research (supervisor 2)
M.A. Schleiss Atmospheric Remote Sensing - CEG (supervisor 2)
Faculty
Civil Engineering & Geosciences
Copyright: © 2022 Willem Kroese
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Published Date

24-12-2022

Language

English

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Faculty

Civil Engineering & Geosciences

Abstract

Cloud droplet number concentrations change due to perturbations in aerosol concentrations. The strength of this correlation covaries with meteorology. Using polarimetric aerosol estimates and MODIS-2 cloud retrievals we compute the interaction strength per meteorological regime, which we determined using clustering techniques on MERRA-2 reanalysis data. The clusters that were found are similar to other clustering studies. The clusters are however not well-separated. The resulting interaction strengths are slightly higher compared to previous satellite studies. The clusters which show large scale vertical movement, generally have higher interaction strengths.