MPTRAC review
A focused atmospheric transport model for researchers studying air-parcel trajectories.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
MPTRAC is an open-source Lagrangian particle-dispersion model for simulating atmospheric transport in the free troposphere and stratosphere. It is aimed at researchers and operational users who need to calculate air-parcel trajectories from meteorological wind and velocity fields, rather than teams looking for a general physics simulator. Its workflows cover turbulent diffusion, subgrid-scale wind perturbations, convection, inter-parcel mixing, sedimentation, wet and dry deposition, and chemical processes.
Its scientific depth is concentrated in atmospheric-data workflows. MPTRAC can preprocess meteorological data for CAPE, boundary-layer height, geopotential height, and tropopause diagnostics. Outputs include trajectories, gridded fields, ensemble statistics, profiles, point samples, and station data. Gnuplot and ParaView interfaces support visualization, including interactive 3D workflows in ParaView. netCDF and HDF5 are among its integrations, while hybrid MPI, OpenMP, and OpenACC execution supports workstations, clusters, and GPUs. This breadth suits studies that need flexible trajectory and ensemble analysis; it is less suitable for general-purpose physical systems outside atmospheric transport.
The GNU General Public License v3.0 plan is open source, with Linux installation from source or binaries and a browser-based Web Runner. The Web Runner allows simulations without local installation and is positioned for teaching, demonstrations, and exploratory studies; Linux deployment is the route for users needing the model's broader computational workflows. Documentation and email are the listed support channels. Choose MPTRAC if atmospheric trajectories and dispersion are central to the work and parallel scientific computing fits the team. Choose another tool if the priority is broad physics simulation or an education platform built around lessons and assessment.
MPTRAC pros and cons
- Where it wins
- Models trajectories with diffusion, convection, mixing, deposition and chemistry.
- Supports parallel execution across workstations, clusters and GPUs.
- Offers Linux installation and a browser-based Web Runner.
- Where it doesn't
- Focused on atmospheric transport, not general-purpose physics simulation.
- Linux source or binary installation may require technical setup.
- Web Runner is intended for teaching and exploratory simulations.
MPTRAC fact sheet, pricing and score →
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