Research Article

Modifying Covariance Localization to Mitigate Sampling Errors from the Ensemble Data Assimilation

Algorithm 1

Analysis step for CL.
(i)Require: A statistical sample of state estimates . is the ensemble matrix, that is, , where column are the ensemble number. is the model component. . Observation vector (input). is a multiplicative inflation factor (parameter). represents the vector with all elements being 1. is the identity matrix. is the localizing function .
(1)for
(2) and
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(11)return analysis ensemble
(12)end for