A5064881868- Research Data Management Practices
- Scientific Computing and Data Management
- Atmospheric chemistry and aerosols
- Meteorological Phenomena and Simulations
- Climate variability and models
- Atmospheric aerosols and clouds
- Atmospheric and Environmental Gas Dynamics
- Maritime Transport Emissions and Efficiency
- Tropical and Extratropical Cyclones Research
- Vehicle emissions and performance
- Coastal and Marine Dynamics
- Atmospheric Ozone and Climate
- Data Quality and Management
- Distributed and Parallel Computing Systems
- Air Quality and Health Impacts
- Aeolian processes and effects
- Cancer, Hypoxia, and Metabolism
- Geological Modeling and Analysis
- Coastal and Marine Management
- Big Data and Business Intelligence
- Geology and Paleoclimatology Research
- Microtubule and mitosis dynamics
- Caveolin-1 and cellular processes
- Protein Tyrosine Phosphatases
- Urban and spatial planning
German Climate Computing Centre
2018-2025
Gesellschaft für wissenschaftliche Datenverarbeitung mbH Göttingen
2022
Computing Center
2022
Max Planck Institute for Meteorology
2011-2020
Monash University
2012-2016
ARC Centre of Excellence for Climate System Science
2013-2016
Center for Free-Electron Laser Science
2016
Universität Hamburg
2009-2016
Max Planck Society
2016
Max Planck Institute for Comparative and International Private Law
2011-2013
A new release of the Max Planck Institute for Meteorology Earth System Model version 1.2 (MPI-ESM1.2) is presented. The development focused on correcting errors in and improving physical processes representation, as well computational performance, versatility, overall user friendliness. In addition to radiation aerosol parameterizations atmosphere, several relatively large, but partly compensating, coding model's cloud, convection, turbulence were corrected. representation land was refined...
Abstract. A simple plume implementation of the second version (v2) Max Planck Institute Aerosol Climatology, MACv2-SP, is described. MACv2-SP provides a prescription anthropogenic aerosol optical properties and an associated Twomey effect. It was created to provide harmonized description post-1850 radiative forcing for climate modeling studies. has been designed be easy implement, change use, thereby enable studies exploring climatic effects different patterns forcing, including formulated...
More than one hundred days were simulated over very large domains with fine (0.156 km to 2.5 km) grid spacing for realistic conditions test the hypothesis that storm (kilometer) and large-eddy (hectometer) resolving simulations would provide an improved representation of clouds precipitation in atmospheric simulations. At scales resolve convective storms (storm-resolving short), vertical velocity variance becomes resolved a better physical basis is achieved representing precipitation....
Abstract The representation of tropical precipitation is evaluated across three generations models participating in phases 3, 5, and 6 the Coupled Model Intercomparison Project (CMIP). Compared to state-of-the-art observations, improvements CMIP6 are identified for some metrics, but we find no general improvement on different temporal spatial scales. Our results indicate overall little changes CMIP summer monsoons, double-ITCZ bias, diurnal cycle precipitation. We a reduced amount drizzle...
Recent trends within computational and data sciences show an increasing recognition adoption of workflows as tools for productivity reproducibility that also democratize access to platforms processing know-how. As digital objects be shared, discovered, reused, benefit from the FAIR principles, which stand Findable, Accessible, Interoperable, Reusable. The Workflows Community Initiative's Working Group (WCI-FW), a global open community researchers developers working with across disciplines...
Abstract We evaluate the new icosahedral nonhydrostatic atmospheric (ICON‐A) general circulation model of Max Planck Institute for Meteorology that is flexible to be run at grid spacings from a few tens meters hundreds kilometers. A simulation with ICON‐A low resolution (160 km) compared not‐tuned fourfold higher‐resolution (40 km). Simulations using last release ECHAM climate (ECHAM6.3) are also presented two different resolutions. The simulations provide compelling representation and its...
Abstract The aim for a more accurate representation of tropical convection in global circulation models is long-standing issue. Here, the relationships between large and convective scales observations stochastic multicloud model (SMCM) to ultimately support design novel parameterization with elements are investigated. Observations obtained at Darwin Kwajalein used here. It found that variability observed generally decreases increasing large-scale forcing, implying transition from...
Abstract We implement a Stochastic Multicloud Model (SMCM) in an observation‐informed configuration into the convection scheme of state‐of‐the‐art GCM ECHAM6.3. The SMCM we use here has been tuned to represent observed tropical by associating occurrence and strength deep midtropospheric vertical velocity relative humidity. show that compared ECHAM6.3 standard model, SMCM‐modified version shows improved capacity simulate features intraseasonal variability, including MJO‐like disturbances,...
Climate science relies heavily on the effective creation, management, sharing, and analysis of massive diverse datasets. As digital landscape evolves, there is a growing need to establish framework that ensures FAIRness in handling climate objects. In particular, machine-to-machine actionability objects will be crucial step towards future AI-assisted workflows. Illustrated by use case, this contribution proposes adopting Fair Digital Object (FDO) standard synergy with emerging InterPlanetary...
In recent years, the concept of data spaces has gained prominence, particularly in industry, as a framework for organizing and sharing across business ecosystems institutional disciplinary boundaries. While term itself is not yet widely adopted scientific community , it can be directly applied to research. Data provide a  structured environment integrating sets from diversedisciplines, methods or fieldsand making themaccessible collaboration analysis. Climate climate impact...
Abstract. We present a method for deriving the radiative effects of absorbing aerosols in cloudy scenes from satellite retrievals only. use data 2005–2007 various passive sensors aboard satellites "A-Train" constellation. The study area is restricted to tropical- and subtropical Atlantic Ocean. To identify dependence local planetary albedo on cloud liquid water path aerosol optical depth (AOD), we perform multiple linear regression. OMI UV-Aerosolindex serves as an indicator...
While the output volumes from high-resolution weather and climate models are increasing exponentially, data storage, access, analysis methods have not kept up. Data compression is a vital tool to keep up with this increase in production. As lossless no longer sufficient produce required ratios, lossy should be applied instead. However, information loss sounds scary. mounting research shows that model measurement contains “false information” (e.g. noise or uncertainty...
Currently certain earth system models, due to their advanced modeling capabilities and improved computational power, can perform simulations at extremely high resolutions as close a km. The data from these act drivers for many downstream scientific research applications well decision making tools that aid in policy making. These turn depend on shared or standalone resources HPC infrastructures. As result the federated access design is required revolve around triad comprising of: Data...
It is apparent that the data amounts expected to be generated by current and upcoming Earth System Science research operational activities stress capabilities of HPC associated infrastructures. Individual projects focusing on running global Models (ESMs) at spatial resolution 5km or less can easily occupy several petabytes disk. With multiple such a single infrastructure, challenge storing alone becomes apparent. Further, community-driven like model intercomparison – which are...
Climate science relies heavily on the effective creation, management, sharing, and analysis of massive diverse datasets. As digital landscape evolves, there is a growing need to establish framework that ensures FAIRness in handling climate objects. Especially, machine-to-machine actionability objects will be crucial step towards future AI assisted workflows. Motivated by use case, this contribution proposes adoption Fair Digital Object (FDO) concept address challenges associated with...
[1] Ship tracks are regarded as the most obvious manifestations of effect anthropogenic aerosol particles on clouds (indirect effect). However, it is not yet fully quantified whether there climatically relevant effects large scales beyond narrow ship visible in selected satellite images. A combination and reanalysis data used here to analyze regions which major shipping lanes cut through otherwise pristine marine environments subtropical tropical oceans. We expect region downwind a lane...
Abstract. In this study, we employ the global aerosol-climate model ECHAM-HAM to globally assess aerosol indirect effects (AIEs) resulting from shipping emissions of aerosols and precursor gases. We implement sulphur dioxide (SO2), black carbon (BC) particulate organic matter (POM) for year 2000 into quantify model's sensitivity towards uncertainties associated with emission parameterisation as well themselves. Sensitivity experiments are designed investigate (i) uncertainty in size...
Representing mesoscale convective systems (MCSs) and their multi-scale interaction with the large-scale atmospheric dynamics is still a major challenge in state-of-the-art global numerical weather prediction (NWP) models. This results potentially defective forecasts of synoptic-scale regions high MCS activity. Here, we quantify this error by comparing simulations performed very large-domain, convection-permitting NWP model to two operational models relying on parameterized convection. We use...
We use data from simulations performed with the global aerosol-climate model ECHAM5-HAM to test proposition that shipping emissions do not have a statistically significant effect on water clouds over tropical oceans climate scales put forward in earlier satellite based work. analyse total of four sensitivity experiments, three which employ and one simulation only employs mid-Atlantic Ocean. To ensure comparability results observations, we sample using method previously applied aimed at...
Observations of tropical convection from precipitation radar and the concurring large-scale atmospheric state at two locations (Darwin Kwajalein) are used to establish effective stochastic models parameterise subgrid-scale convective activity. Two approaches presented which rely on assumption that induces a stationary equilibrium distribution. In first approach we variables such as area fraction an instantaneous random realisation conditioned vertical velocities according probability density...
Representing the electrodynamics of relativistically drifting particle ensembles in discrete, co-propagating Galilean coordinates enables derivation a Particle-In-Cell algorithm that is intrinsically free numerical Cherenkov instability for plasmas flowing at uniform velocity. Application method shown by modeling plasma accelerators Lorentz-transformed optimal frame reference.