MIDAS and DDSCAT: Single-Scattering Properties of Nonspherical Ice Particles

University of California, Los Angeles researcher Ines Fenni provides simulation results and code for evaluating orientation-averaged single-scattering properties of ice particles. The dataset includes results from the MIDAS and DDSCAT electromagnetic scattering codes, comparing high-order quadrature schemes like Lebedev quadrature and spherical designs. It contains simulation data for cylinders and a convergence study of ten particle shapes, along with Fortran subroutines and Matlab functions for analysis and plotting.

Use Cases

• Benchmarking computational efficiency of quadrature schemes for orientation averaging based on the described MIDAS and DDSCAT simulations.
• Validating radiative transfer model inputs for complex-shaped hydrometeors using the provided single-scattering property data.
• Reproducing convergence study plots for backscatter efficiency factors of ten ice particle shapes detailed in the associated paper.
• Developing or integrating high-order quadrature methods for electromagnetic scattering calculations using the included Fortran subroutines.

Strengths

• Includes simulation results from two established electromagnetic scattering codes, MIDAS and DDSCAT, enabling direct comparison.
• Provides the specific code (Fortran subroutines, Matlab functions) used to generate the study's figures, supporting reproducibility.
• Contains a convergence study for ten different particle shapes, as mentioned in the description.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and total dataset size are unknown, which may limit suitability assessment.
• Last update date is unknown; freshness unverified.

Provenance

Source

Ines Fenni, University of California, Los Angeles, via paperswithcode.

Collection Method

Computational simulations performed with MIDAS and DDSCAT electromagnetic scattering codes.