Published July 21, 2023 | Version v1
Software Open

Computing spatial spectra using implicit filters

Authors/Creators

  • 1. Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research
  • 2. Constructor University, Bremen
  • 3. Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research Dmitry

Description

We present Matlab scripts to compute spatial spectra based on implicit filters and data on unstructured triangular meshes. There are two versions of the filters, one based on harmonic and the other on biharmonic operators. Matlab preconditioned conjugate gradient solver is used in computations. Synthetic data are used with known Fourier spectra to verify the performance of the method. The scripts were written to test the method, but they can be easily adapted to practical tasks.     

Files

scripts_data.zip

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