environmentaltools.graphics.anisotropic_spatiotemporal_covariance

environmentaltools.graphics.anisotropic_spatiotemporal_covariance(covdist, covdistd, covdistt, empcovang, slag, type)

Plot anisotropic spatiotemporal covariance as polar or 3D visualization.

Displays directional (angular) spatiotemporal covariance patterns to identify anisotropy in the spatial correlation structure.

Parameters:

• covdist (numpy.ndarray) – Spatial distance values for covariance.

• covdistd (numpy.ndarray) – Angular direction values (degrees) for covariance.

• covdistt (numpy.ndarray) – Temporal distances for each covariance slice.

• empcovang (numpy.ndarray) – Empirical angular covariance values (shape: [n_distances, n_angles, n_times]).

• slag (float) – Spatial lag distance for scaling.

• type (tuple) – Two-element tuple specifying visualization: - type[0]: “polar” for polar plots, “3d” for 3D surface plots - type[1]: “variogram” for variogram display, other for covariance

Returns:

Displays the plots.

Return type:

None

Note

Angular values are extended by 360° to create continuous polar plots. For variogram mode, displays gamma(h) = c(0) - c(h).