Regional and basin scale applications of ensemble adjustment Kalman filter and 4D-Var ocean data assimilation systems

A Moore, J Zavala-Garay, HG Arango… - Progress in …, 2020 - Elsevier
… to data assimilation, an Ensemble Adjustment Kalman Filter (… performance of both data
assimilation approaches to system … generating the seed ensemble, ensemble size, localization …

Arctic sea ice data assimilation combining an ensemble Kalman filter with a novel Lagrangian sea ice model for the winter 2019–2020

S Cheng, Y Chen, A Aydoğdu, L Bertino… - The …, 2023 - tc.copernicus.org
… of the ensemble Kalman filter (EnKF, Evensen, 2003), used to assimilate satellite-based
SIC and SIT data in the … We propose an ensemble-based data assimilation system for the …

An ensemble Kalman filter data assimilation system for the Martian atmosphere: Implementation and simulation experiments

MJ Hoffman, SJ Greybush, RJ Wilson, G Gyarmati… - Icarus, 2010 - Elsevier
… Section 2 describes the Mars model and Section 3 describes the ensemble Kalman filter
methodology used in this study. Section 4 details the simulation experiments and Section 5 …

Radar data assimilation in the Canadian high-resolution ensemble Kalman filter system: Performance and verification with real summer cases

W Chang, KS Chung, L Fillion… - Monthly Weather …, 2014 - journals.ametsoc.org
… As a first step toward full radar data assimilation, only radial velocities are directly
assimilated in this study. The HREnKF is applied on three 2011 summer cases having different …

A hybrid grid/particle filter for Lagrangian data assimilation. I: Formulating the passive scalar approximation

H Salman - Quarterly Journal of the Royal Meteorological …, 2008 - Wiley Online Library
… for the assimilation of Lagrangian data. In part I, we formulate the method as a generalization
of other particle filters. A … in the Ensemble Kalman filter (EnKF). A major drawback of particle …

Data assimilation for strongly nonlinear problems by transformed ensemble Kalman filter

Q Liao, D Zhang - SPE Journal, 2015 - onepetro.org
… Transformed Ensemble Kalman Filter (TEnKF) In the traditional ensemble Kalman filter (EnKF)…
However, in the TEnKF, we update the displacement from the Lagrangian point of view (ie, …

Data assimilation using the constrained ensemble Kalman filter

HA Phale, DS Oliver - SPE Journal, 2011 - onepetro.org
… is first to assimilate the data without any constraints (data assimilation using the standard …
the Lagrange multipliers that enforce the constraints. The values of the Lagrange multipliers …

Weighted ensemble transform Kalman filter for image assimilation

S Beyou, A Cuzol… - Tellus A: Dynamic …, 2013 - Taylor & Francis
… extension of the Weighted Ensemble Kalman filter (WEnKF) … by dedicated probes or
Lagrangian drifters, satellite images … Recently a data assimilation procedure embedding an EnKF …

An ensemble Kalman filter for atmospheric data assimilation: Application to wind tunnel data

DQ Zheng, JKC Leung, BY Lee - Atmospheric Environment, 2010 - Elsevier
… ), a data assimilation method, based on ensemble Kalman filter, … In this technical note, the
measured data collected in a wind … field play an important role for the data assimilation results. …

Ocean current estimation using a multi-model ensemble Kalman filter during the Grand Lagrangian Deployment experiment (GLAD)

EF Coelho, P Hogan, G Jacobs, P Thoppil, HS Huntley… - Ocean Modelling, 2015 - Elsevier
… traditional Kalman filter and particle filter formulations used for ocean data assimilation in …
of degrees of freedom of traditional data assimilation formulations, producing faster results with …