About me
Hello World!
I am a postdoc in the Climate Physics department of MPI-M. I am a part of the EU funded NextGEMS project. My postdoc supervisor is Prof. Dr. Bjorn Stevens.
I work on understanding the processes that result in the breakdown of the Intertropical Convergence Zone (ITCZ) using the km-scale coupled atmosphere-ocean-land simulations that are produced as a part of the NextGEMS project. I am also interested in understanding the differences in the propagation mechanisms of the…
Deutloff, J. E., Held, H., and Lenton, T. M. (2023): The risky middle of the road – probabilities of triggering climate tipping points and how they increase due to tipping points within the Earth’s carbon cycle, EGUsphere [preprint], https://doi.org/10.5194/egusphere-2023-1469
Preprints
Tropical high clouds are characterised by a near-neutral radiative effect, since reflection of short-wave solar radiation is balanced by absorption and re-emission of long-wave terrestrial radiation.…
Place of birth Lübeck, Germany
School Thomas-Mann-Schule, Lübeck (high school)
University education University of Cologne, Germany, Diploma in Geophysics, 1996
PhD University of Cologne, Germany, 1999, Doktorarbeit: Vierdimensionale Datenassimilation nach der Variationsmethode fuer ein mesoskaliges Chemietransportmodell - 4D-Var data assimilation for a mesoscale chemistry transport model, mark: "summa cum laude"
Scientific positions
Laboratoire de Meteorologie Dynamique, Paris,…
My research looks into the implications that physical parametrization and diffusive processes have on high resolution non-hydrostatic climate models and the large scale circulations they develop. I am working with ICON, the Icosahedral and non-hydrostatic climate model of the German Weather Service and the Max Planck Institute for Meteorology, to understand the implications and optimal ways to setup its damping and physical parameterizations for kilometer scale…
The Max Planck Institute for Meteorology is a partner in a new cooperation program of the Max Planck Society with the Indian Institutes for Science Education and Research (IISERs) to implement research stays for young talented master students from India at a Max Planck Institute.
A new study led by researchers from the Max Planck Institute for Meteorology, in collaboration with scientists from the University of Hamburg, shows that future Arctic methane emissions may not depend on whether thawing permafrost soils dry out or not. They also found that the hydrological conditions of the permafrost soils not only have a local impact but could even influence methane emissions in the tropics.
In my research, I investigate how stratospheric dynamics can be realistically represented in the latest generation of atmospheric circulation models — so-called global storm-resolving models. In particular, I focus on the so-called quasi-biennial oscillation (QBO) of the zonal wind in the tropical stratosphere, which is characterized by alternating downward propagating westerly and easterly wind jets.
The stratospheric circulation in general and the QBO in particular are significantly…
In convective storms, the air that goes down is almost as important as the air that goes up. These convective downdrafts influence the termination of updrafts, near surface air properties, surface winds. However, predicting downdrafts under specific atmospheric conditions is difficult because their properties depend on several interrelated processes. In a new study led by Dr. Julia Windmiller, scientists from the Max Planck Institute for Meteorology and the Australian Research Council Centre of…
Never before in millions of years has our planet warmed so rapidly as today. A deeply concerning manifestation of this change is the world’s recent and repeated exposure to unprecedented weather events that has resulted in increasingly frequent, tragic, and expensive natural disasters. Record-breaking heatwaves, forest and bush fires, riverine and coastal floods, droughts, and sea level rise are now threatening our present and future. Communities worldwide expect timely and accurate guidance to…
Whether it rains more over wet or over dry soils is set by the representation of convection
Whether an increase in soil moisture leads to an increase (positive feedback) or a decrease (negative feedback) of precipitation has long been debated. Positive feedbacks are of particular relevance for the climate system as they can amplify an existing perturbation, thus affecting the climate system on longer time scales. One difficulty in diagnosing the strength and sign of the feedback between soil…
Prof. Tiffany Shaw, internationally renowned atmospheric physicist at the University of Chicago, has been selected by the Alexander von Humboldt Foundation for the Friedrich Wilhelm Bessel Research Award in recognition of her outstanding research accomplishments.
Head of Working Group: Climate Vegetation Dynamics Head: IMPRS-ESM
Head of Working Group
Climate system dynamics and climate history are my areas of interest. In particular, I am fascinated by the interaction between the atmosphere and the land surface with its vegetation. What role does this interaction play in the evolution of global and regional climate?
In the early 1990s, I showed that the vegetation-climate system can reach different equilibrium states with…
