MESSy – Modular Earth Submodel System

MESSy is …

a software framework that combines components, which are numerical representations of our Earth system. Examples of components are atmosphere, land and ocean models, and more.

The unique feature of MESSy is a modular structure that facilitates continuous development and flexible model configurations. The concept has been established by a consortium of institutions with leading expertise in Earth System Modelling and the framework is continually further developed.

MESSy is supported by the German Climate Computing Center (DKRZ), Leibnitz Rechenzentrum (LRZ), the Max Planck Computing and Data Facility (MPCDF), the Jülich Supercomputing Centre (JSC), and the terrabyte cooperation between DLR and LRZ.

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  • Kick-off for project ADAPTEX

    Kick-off meeting of ADAPTEX took place end of March at DLR in Cologne. Six partners from academia and industry, including the German Aerospace Center (DLR), the Universities of Cologne and Aachen, Jülich Supercomputing Center and Hydrotec GmbH are collaborating on this project to improve the accuracy and performance of computational fluid dynamics simulations on supercomputers. The project will focus on the mathematical basis of the discontinuous Galerkin method on dynamically adaptive grids to enable high resolution, computationally efficient modelling of Earth system models. The project addresses applications such as ocean modelling, atmospheric transport processes, and flood simulations, with EMAC as one of its pilot applications. One goal is the development of a dynamical core with an adaptive grid in MESSy.

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  • Introductory workshop at Charles University Prague

    To welcome and support Charles University Prague as one of the newest members of the MESSy consortium, a introductory workshop took place at 8-9 February 2023 at the Department of Atmospheric Physics, Charles University in Prague. The 15 participants from the Czech University consisted of a diverse mix of researchers, from Msc students via early career researchers to senior scientists. Their scientific focus ranges all the way from global dynamics in the middle atmosphere to regional chemistry-climate and air quality studies in Central Europe.

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  • New publication in Nature Communications

    The publication “Variation of lightning-ignited wildfire patterns under climate change” by Francisco J. Pérez-Invernón et al. is now available as open access in Nature Communications. For this study, a recently
    developed Long-Continuing-Current (LCC) lightning parameterization has been included in the EMAC model to simulate the sensitivity of lightning and LCC lightning to global change. Globally, a 41% increase of LCC lightning has been simulated, which is slightly lower than the projected increase of total lightning. The results show that lightning schemes including LCC lightning are needed to project the occurrence of lightning-ignited wildfires under climate change.

    A summary of the publication is also published in the journal’s “Behind the Paper” section.

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  • New publication on the simulation of isoprene and monoterpenes

    The publication “Isoprene and monoterpene simulations using the chemistry–climate model EMAC (v2.55) with interactive vegetation from LPJ-GUESS (v4.0)” of Vella et al. is now available in the EGU open access journal “Geoscientific Model Development”. Biogenic volatile organic compounds (BVOCs) are released by vegetation and have a major impact on atmospheric chemistry and aerosol formation. Non-interacting vegetation constrains the majority of numerical models used to estimate global BVOC emissions, and thus, the effects of changing vegetation on emissions are not addressed. In this work, we replace the offline vegetation with dynamic vegetation states by linking a chemistry–climate model with a global dynamic vegetation model.

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  • New publication in Atmospheric Chemistry and Physics

    The new publication by Flora Kluge et al. on “Airborne glyoxal measurements in the marine and continental atmosphere: comparison with TROPOMI observations and EMAC simulations” is now available in its final version in the EGU open access journal “Atmospheric Chemistry and Physics”. In this study measurements of glyoxal (C2H2O2) in the troposphere are compared to collocated glyoxal measurements of the TROPOspheric Monitoring Instrument (TROPOMI) and simulations from EMAC.

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Developed by the consortium of


Deutsches-Zentrum für Luft- und Raumfahrt

Karlsruher Institut für Technologie

Forschungszentrum Jülich

Max-Planck-Institut für Chemie

The Cyprus Institut

Freie Universität Berlin

Johannes Gutenberg Universität Mainz

University of Connecticut

China Meteorological Administration

Universität Hamburg

Universität Bonn

Laboratory of Atmospheric Physics of the Aristotle University of Thessaloniki

TU Delft

Aarhus University

Sun Yat-Sen University

King Abdullah University of Science and Technology

Uni Freiburg

Ludwig-Maximilians-Universität München

Netherlands Aerospace Centre

Instituto de Astrofísica de Andalucía

Goethe University Frankfurt

Department of Atmospheric Physics Charles University in Prague

Institute of Atmospheric Physics Czech Academy of Sciences

Leibniz Institute of Atmospheric Physics at the University of Rostock

Research Institute For Sustainability – Helmholtz Centre Potsdam (RIFS)

Supported by

Deutsches Klimarechenzentrum
Max-Planck Computing and Data Facility
Jülich Supercomputing Centre (JSC)
terrabyte by DLR and LRZ