Research | mysite

In general, my research is driven by the desire to expand our process understanding of different phenomena found within the Earth's atmosphere. In pursuing this goal I perform high-resolution short time scale studies to further understand local phenomena and small-scale processes that may have large-scale (temporal and spatial) impacts, as well as low-resolution climate simulations assessing climate impacts stemming from human activity.

Below you may find a brief overview of my research, which focuses on feedback mechanisms triggered in polluted marine boundary clouds. In addition to this work I have explored the potential climate impacts due to the large-scale deployment of wind turbines and the geophysical limits of wind power imposed by the dynamics of the atmosphere.

Stratiform clouds in collapsed boundary layers are relatively rare and their cloud water content see

Figure: The black lines of the left-hand side figure show the relative distribution of all stratocumulus decks worldwide for two...

Ships brighten clouds even when you cannot see it

Figure [courtesy: Diamond et al. (2020)]: Increase in cloud optical thickness (measure of reflectivity of a cloud) within the shipping...

Two out of three chance that anthropogenic aerosol have offset at least 20% and at most 50% of the g

Figure: Schematic summarising sources of anthropogenic aerosol and their direct interaction with radiation and their impact on clouds...

Cloud ice could impact cloud patterns in mixed-phase stratocumulus

Figure [Courtesy Eirund et al (2019)]: Snapshot of vertically integrated liquid water path (LWP) and ice water path (IWP) of mixed phase...

Arctic stratocumulus respond differently to aerosol perturbations over the open ocean and the ice sh

Figure 1 [Courtesy: Eirund et al (2019)]: Schematic illustrating the change in Arctic stratocumulus cloud properties over the open ocean...

Ships may alter cloud-radiative properties even when not detected from space

Figure: LHS: Cloud albedo of a shallow cloud scene where a ship track forms around the emission source. The ship is moving continuously...

German research initiative "Make our planet great again" (MOPGA-GRI) funds four years of r

From November 1st, I will be starting my own research group at the Institute for Atmospheric and Environmental Science at Goethe...

Huge geophysical potential for open ocean wind farms in the North Atlantic

Figure 1: Floating wind turbines being transported to the first floating turbine wind farm site (Hywind project) situated off the...

Compensating Feedback Mechanisms in Aerosol Perturbed Stratiform Mixed-Phase Clouds

Figure: Process schematic of aerosol cloud effects in boundary layer mixed-phase clouds (See text for explanation). In the Arctic,...

How well is local cloud brightening induced by aerosol emissions represented in coarse-resolution cl

Table: Ship-induced changes in the mean shortwave (SW) cloud radiative effect (CRE) at the top of atmosphere and cloud optical thickness...

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