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Software Release: Release of GSI Version 3.6 and EnKF Version 1.2

Release Date 10.04.2017
Autumn 2017

The Developmental Testbed Center (DTC) is pleased to announce the release of the following community data assimilation systems:

Version 3.6 of the Community Gridpoint Statistical Interpolation (GSI) data assimilation system
Version 1.2 of the Community Ensemble Kalman Filter (EnKF) data assimilation system

The released packages for GSI and EnKF and the documentation for each can be accessed through each system website as follows:

GSI user’s page
EnKF user’s page

Please send questions and inquiries to the help desk emails: and

GSI and EnKF are community data assimilation systems, open to contributions from both the operational and research communities. Please contact the helpdesk for assistance on gaining access to the development code repository and learning about code commit procedures.

Prospective contributors can also apply to the DTC visitor program for their data assimilation research and code transition. The visitor program is open to applications year-round. Please check the visitor program webpage ( for the latest announcement of opportunity and application procedures.

The DTC is a distributed facility, with a goal of bridging the research and operational communities. This code release is sponsored by the National Oceanic and Atmospheric Administration (NOAA) and the National Center for Atmospheric Research (NCAR). NCAR is supported by the National Science Foundation (NSF).


Contributed by Staff.