Localization (endas.localization)¶
Localization of the analysis update.
This module implements various forms of localization for ensemble-based data assimilation methods.
Classes and functions¶
Interface classes for localization
CoordinateSystem |
Coordinate system abstraction. |
TaperFn |
Covariance tapering function. |
SpatialQuery |
Lookup of observations or state vector elements by location. |
StateSpacePartitioning |
Abstract base class for state space partitioning schemes. |
DomainLocalization |
Domain-based localization of the analysis update. |
Coordinate systems
cs.EuclideanCS |
Cartesian coordinate system in N-dimensional Euclidean space. |
cs.LatLonCS |
Polar coordinate system on a perfect sphere. |
Covariance tapering functions
taper.GaspariCohn |
Gaspari-Cohn covariance tapering function. |
taper.Linear |
Linear covariance tapering function. |
taper.Spherical |
Spherical covariance tapering function. |
Classes implementing domain localization
Instead, this is delegated to classes that implement the StateSpacePartitioning interface. Currently, EnDAS
contains the following state space partitioning schemes:
GenericStateSpace1d |
Analysis localization assuming generic state space. |
grid.Grid2d |
Organizes state vector elements on a two-dimensional grid. |