CAPTAS2

CAPTAS2 is a software package used for acoustic propagation modeling and data analysis in ocean acoustics. As the successor to the CAPTAS family, CAPTAS2 extends the capabilities of earlier versions with improved solver performance, enhanced modeling options, and a more flexible interface. It is designed for researchers and engineers working in offshore and submarine acoustics, sonar design, and coastal engineering.

The software provides a modular architecture consisting of a core propagation engine, pre- and post-processing tools, and a scripting interface. It supports three-dimensional simulations of acoustic fields in complex environments, including variable sound speed profiles, bathymetry, and boundary conditions. Users can import oceanographic data, configure model geometries, run simulations, and analyze results through built-in visualization and export options. The scripting interface enables automation and reproducibility of analyses.

CAPTAS2 is typically distributed under a commercial license with options for academic licenses; distribution terms and available platforms may vary by version. It runs on common operating systems used in research labs, such as Linux and Windows, and is accompanied by documentation, tutorials, and example models to assist new users. A user community and support channels exist through the vendor or affiliated research groups.

CAPTAS2 is part of a broader CAPTAS family and is frequently cited in research on underwater acoustics, sonar performance evaluation, and coastal noise modeling. See also CAPTAS and related ocean-acoustics modeling tools.