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cgrudz committed Sep 21, 2022
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Expand Up @@ -38,12 +38,12 @@ sequential-in-time observational data [@carrassi2018data]. As a long-studied "bi
problem, DA has benefited from the fusion of a variety of techniques, including methods
from Bayesian inference, dynamical systems, numerical analysis, optimization, control
theory and machine learning. DA techniques are widely used in many
areas of geosciences, neurosciences, biology, autonomous vehicle guidance and various
areas of geosciences, neurosciences, biology, autonomous vehicle guidance, and various
engineering applications requiring dynamic state estimation and control.

The purpose of this package is to provide a research framework for the theoretical
development and empirical validation of novel data assimilation techniques.
While analytical proofs can be derived for classical methods such as the Kalman filter
While analytical proofs can be derived for classical methods, such as the Kalman filter
in linear-Gaussian dynamics [@jazwinski2007stochastic], most currently developed DA
techniques are designed for estimation in nonlinear, non-Gaussian models where no
analytical solution may exist. DA methods,
Expand All @@ -55,9 +55,9 @@ of a proposed scheme with other standard methods within the same class of estima
This package implements a variety of standard data assimilation algorithms,
including some of the widely used performance modifications that are used in
practice to tune these estimators. This software framework was written originally
to support the development and intercomparison of methods studied in [@grudzien2021fast].
to support the development and intercomparison of methods studied in @grudzien2021fast.
Details of the studied ensemble DA schemes, including pseudo-code detailing
their implementation, and DA experiment benchmark configurations, can be found in
their implementation and DA experiment benchmark configurations, can be found in
the above principal reference. Additional details on numerical integration schemes
utilized in this package can be found in the secondary reference [@grudzien2020numerical].

Expand All @@ -77,8 +77,8 @@ future development.
## Comparison with similar projects

Similar projects to DataAssimilationBenchmarks.jl include the DAPPER Python library
[@dapper], DataAssim.jl used by [@vetra2018state], and
EnsembleKalmanProcesses.jl [@enkprocesses] of the Climate Modeling Alliance.
[@dapper], DataAssim.jl used by @vetra2018state, and
EnsembleKalmanProcesses.jl of the Climate Modeling Alliance [@enkprocesses].
These alternatives are differentiated primarily in that:

* DAPPER is a Python-based library which is well-established, and includes many of the same
Expand All @@ -91,7 +91,7 @@ These alternatives are differentiated primarily in that:
* DataAssim.jl is another established Julia library, but notably lacks an implementation
of variational and ensemble-variational techniques.

* EnsembleKalmanProcesses.jl is another established Julia library, but notably lacks
* EnsembleKalmanProcesses.jl is another established Julia library, but specifically lacks
traditional geoscientific DA approaches such as 3D-VAR and the ETKF/S.

## Future development
Expand All @@ -110,7 +110,8 @@ Bus test case model and the numerical integration schemes for ordinary and stoch
differential equations. Charlotte Merchant developed the numerical code for implementing
variational data assimilation in the Lorenz-96 model and related experiments. Sukhreen
Sandhu supported the development of the package structure and organization.
All authors supported the development of the package by implementing test cases.
All authors supported the development of the package by implementing test cases and writing
software documentation.
This work was supported by the University of Nevada, Reno, Office of Undergraduate Research's
Pack Research Experience Program which supported Sukhreen Sandhu as a research assistant.
This work was supported by the Center for Western Weather and Water Extremes internship
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