SABER

SABER is the System Agnostic Background Error Representation.

It provides generic software utilities for computing and working with the background error covariance matrix, often referred to as the B matrix.

SABER blocks

The B matrix is generally modeled as a series of linear operators, represented in SABER by “SABER blocks”. Such blocks, even if they come from different SABER components of SABER, are interoperable.

More details here:

• SABER blocks

SABER components

SABER blocks can encapsulate various components:

• BUMP: Background error on an Unstructured Mesh Package
• GSI: interface to the GSI covariance
• ID: identity operator
• SPECTRALB: spectral covariance/correlation
• StdDev: standard-deviation application

SABER testing

SABER has its own pseudo-model for testing purposes, called QUENCH.

More details here:

• QUENCH

A low-level description of the classes, functions, and subroutines is also available, produced by means of the Doxygen document generator.

Doxygen Documentation