Max Planck Institute for Meteorology: Search

325.

Course pool S_36 Climate Dynamics S_37 Statistical Tools in Climate Research:Spectral Analysis S_38 Statistical Tools in Climate Research: Hypothesis Testing S_39 Generic Aacademic Skills S_41 Advanced Scientific Writing S_43 NCL Workshop S_61 SoftSkills for Science S_87 Project and Time Management for Scientists S_62 The Middle Atmosphere S_63 Introduction to Turbulence S_71 Urban Areas and Global Change S_72 Introduction to ICON S_73 Parameterizing Moist Processes in Atmospheric…

326.

Three fellowships for George Datseris

Dr. George Datseris, a scientist previously working in the department “The Atmosphere in the Earth System” at the Max Planck Institute for Meteorology, was recently granted a Marie Skłodowska-Curie Actions Postdoctoral Fellowship. This honor follows on two other successful postdoctoral fellowship applications, one from the Royal Society International Newton Fellowship, and the second from the German Research Foundation (DFG) Walter Benjamin postdoctoral fellowship, which cap a very productive…

327.

Fairweather cumulus are here to stay after all!

“Eureka!” That is what the Greek scholar Archimedes is said to have exclaimed in delight upon discovering buoyancy. More than 2,000 years later, the similarly named meteorological field campaign EUREC4A has studied some of the implications of buoyancy, and in so doing provided some welcome news: cumuli in the subtropics diminish less with warming than the most sensitive models predict. Climate change need not necessarily be amplified by enhanced absorption of solar radiation.

328.

The effect of climate perturbations on the timing of Heinrich events

Throughout the last glacial period (ca. 65,000-15,000 years before present) periodic ice discharge events from the North American ice sheet, known as Heinrich events, shaped the climate evolution of the northern Hemisphere. However, the driving mechanisms behind these events remain elusive to this day. In a new study, Schannwell et al. investigate the sensitivity of Heinrich events to different climate perturbations. They find that changes in snowfall and surface temperature can pace the timing…

329.

Self-sustained AMOC oscillations

AMOC response to different forcing and self-sustained AMOC oscillations State-of-the-art coupled climate models produce very different states of the Atlantic Meridional Overturning Circulation (AMOC) in simulations of the Last Glacial Maximum (LGM). Many of them fail to capture the shoaling of the North Atlantic Deep Water (NADW) cell, as indicated by paleo records. The mechanisms that control the shoaling are not yet well understood. Changes in the AMOC have also been linked to past abrupt…

330.

Fully coupled climate-ice sheet simulations

Fully coupled climate-ice sheet simulations of the last deglaciation The climate system has undergone dramatic changes during the last deglaciation from 21,000 years before present to present day. For example, the Laurentide ice sheet over North America and the Fennoscandian ice sheet over Northern Europe have completely disappeared. This collapse of the ice sheets was accompanied by a global sea-level rise of ~120 m. The individual climate components and their responses to changing conditions…

331.

Is climate deterministic or stochastic?

Prof. Jin-Song von Storch shows in a new paper that climate variability on ultra-long timescales is, contrary to common understanding, not determined by the responsible internal dynamics on the same timescales. Her study is an impetus for a new way of thinking. Her result provides first evidence showing that climate as a dynamical system is not deterministic in an absolute sense.

332.

WarmWorld project at full speed

With the first day of spring we also kick off the full module-team of the BMBF-funded WarmWorld project. Within this project, the Max Planck Institute for Meteorology and its partners are developing the scalability of the Earth-system model ICON for exascale applications.

333.

What the development of global climate models at the km-scale teaches us about tropical convection

Accurately capturing location, diurnal as well as seasonal variability of the tropical rainbelt, over land and over ocean, has remained beyond reach for climate models relying on statistical representations of convection. In this context, simulations explicitly resolving convection over regional domains with fixed sea-surface temperatures demonstrated advantages in reproducing several aspects of precipitation from diurnal to sub-seasonal scales.

334.

Climate researcher for a day: Girls'Day at the Max Planck Institute for Meteorology

The Max Planck Institute for Meteorology, together with the German Climate Computing Centre (DKRZ) and the University of Hamburg, is once again participating in Girls'Day on 27 April 2023.

335.

Component concurrency increases the parallel efficiency of Earth system models

In a recent study in the journal of Geoscientific Model Development Leonidas Linardakis and his colleagues demonstrate how coarse-grained component concurrency increases the parallel workload of Earth system models and results in an increased number of compute nodes that can be used efficiently in parallel. The additional dimension of parallelism allows the scientists to extend scalability beyond the limits set by established parallelization techniques. It also offers a way to maintain…

336.

How ice rises and rumples affect the Antarctic ice sheet

In a study in The Cryosphere, researchers at the Max Planck Institute for Meteorology examined the effect of basal friction and sea level variation on the evolution of ice rises and ice rumples using three-dimensional idealized ice-sheet simulations including the surrounding ice shelves. They show that the current state of ice rises and ice rumples in Antarctica is dependent on their past evolution.