Max-Planck-Institute for Meteorology: Search

313.

Nobel laureate and founding director Klaus Hasselmann on his 90th birthday

Prof. Dr. Klaus Hasselmann completed his 90th year of life on October 25, 2021. The Max Planck Institute for Meteorology (MPI-M) warmly congratulates its founding director on this special birthday. His contributions to the scientific and public understanding of climate change were groundbreaking, which is underpinned by the award of the Nobel Prize in Physics on October 5, 2021. "He is one of the greatest of our field, we owe Klaus Hasselmann a lot! On his 90th birthday, we wish him all the…

314.

Tracking the fate of anthropogenic carbon in the ocean — Modeling the global 13C-Suess effect

Rising fossil-fuel CO2 emissions deplete the atmospheric concentrations of the heavy carbon isotope 13C. This phenomenon, called the 13C Suess effect, can be used to discern the pathways of anthropogenic carbon in the Earth system. In a new study, Dr. Bo Liu, Dr. Katharina D. Six, and Dr. Tatiana Ilyina investigated the sources of uncertainty in an observation based estimate of the global ocean 13C Suess effect. For this purpose, they used the ocean component of MPI-ESM with the carbon isotope…

315.

Variations of tropical lapse rates in climate models and their implications for upper tropospheric warming

In a new study in the Journal of Climate Paul Keil, Hauke Schmidt, Bjorn Stevens and Jiawei Bao from the department “The Atmosphere in the Earth System” in the Max Planck Institute for Meteorology (MPI-M) show how specific features of convection influence tropical lapse rates and upper tropospheric warming.

316.

Physics Nobel Prize 2021 for Klaus Hasselmann

Klaus Hasselmann, founding Director of the Max Planck Institute for Meteorology, receives the Nobel Prize in Physics 2021 together with Syukuro Manabe (USA) and Giorgio Parisi (Italy).

317.

Evangelos Tyrlis takes on professorship in Athens

Dr Evangelos Tyrlis, research scientist in the department "The Ocean in the Earth System" of the Max Planck Institute for Meteorology (MPI-M), has accepted an assistant professorship at the National and Kapodistrian University of Athens (NKUA). He will be an Assistant Professor in Atmospheric Dynamics as of September 2021, but he will keep a close cooperation with colleagues at MPI-M within the framework of projects ROADMAP and PAMIP. The MPI-M congratulates Evangelos Tyrlis to his career step.

318.

Fluid physics, turbulence and vegetation modeling: Martin Claussen and his research interests

After 16 years as Professor of Physical Meteorology at Universität Hamburg and as Director at the Max Planck Institute for Meteorology (MPI-M), Prof. Dr. Martin Claussen will officially retire at the end of September 2021. However, he will remain with the MPI-M as emeritus professor for the next two years and will continue to devote himself to his research interests. Read about his scientific career, and what motivated Martin Claussen during his years as a researcher.

319.

Do clouds amplify global warming? EUREC4A field study tests hypothesized mechanisms

The science guiding the field campaign EUREC4A (Elucidating the role of clouds-circulation coupling in climate) and its measurements is presented in a recent publication by Prof. Bjorn Stevens, of the Max Planck Institute for Meteorology (MPI-M) in Hamburg, Dr. Sandrine Bony, of the Laboratoire de Météorologie Dynamique in Paris, Dr. David Farrell of the Caribbean Institute of Meteorology and Hydrology, and an international team of nearly three hundred co-authors.

320.

Future methane concentration underestimated in climate change scenarios

In a new study in Environmental Research Letters Dr Thomas Kleinen and Prof Victor Brovkin, researchers at the Max Planck Institute for Meteorology (MPI-M), together with Dr Sergey Gromov and Dr Benedikt Steil, researchers at the Max Planck Institute for Chemistry (MPI-C), showed that the changes in methane concentration under future warmer climate conditions have been severely underestimated.

321.

Earth’s albedo and its symmetry

In an article appearing in AGU Advances, Dr. George Datseris and Prof. Bjorn Stevens provide an analysis of the Earth’s albedo, its surprising symmetry between the two hemispheres, and how clouds make it possible.

322.

Are midlatitude weather and climate influenced by Arctic Amplification?

Many factors and regions can influence how the weather and the climate of the mid-latitudes may change under global warming. Particularly the dramatic changes over both the Arctic and the tropics exert a competing influence over the mid-latitudes atmospheric circulation that needs to be better understood and quantified. This tug-of-war between effects of the Artic and the tropics reflects the complexity of the different influences on the mid-latitude variability.

323.

The newest IPCC report – a look behind the scenes

A very personal account by Jochem Marotzke The just-published Assessment Report 6 (AR6) of the Intergovernmental Panel on Climate Change IPCC has produced headlines, as have its predecessors. “It is unequivocal that human influence has warmed the atmosphere, ocean, and land,” or “Global warming of 1.5 °C and 2 °C will be exceeded during the 21st century unless deep reductions in CO2 and other greenhouse gas emissions occur in the coming decades” are essential outcomes and have been widely…

324.

Variational data assimilation – one problem less

In a new study in the Journal of Nonlinear Science Dr Peter Korn, scientist and group leader in the department “The Ocean in the Earth system” at the Max Planck-Institute for Meteorology (MPI-M), investigates one class of data assimilation algorithms, namely variational data assimilation methods.