An ensemble ocean data assimilation system for seasonal prediction

Y Yin, O Alves, PR Oke - Monthly Weather Review, 2011 - journals.ametsoc.org
A new ensemble ocean data assimilation system, developed for the Predictive Ocean
Atmosphere Model for Australia (POAMA), is described. The new system is called PEODAS …

Representation error of oceanic observations for data assimilation

PR Oke, P Sakov - Journal of Atmospheric and Oceanic …, 2008 - journals.ametsoc.org
A simple approach to the estimation of representation error (RE) of sea level (η),
temperature (T), and salinity (S) observations for ocean data assimilation is described. It is …

Representation errors and retrievals in linear and nonlinear data assimilation

PJ Van Leeuwen - … Journal of the Royal Meteorological Society, 2015 - Wiley Online Library
This article shows how one can formulate the representation problem starting from Bayes'
theorem. The purpose of this article is to raise awareness of the formal solutions, so that …

Ensemble estimation of background‐error variances in a three‐dimensional variational data assimilation system for the global ocean

N Daget, AT Weaver… - Quarterly Journal of the …, 2009 - Wiley Online Library
This paper studies the sensitivity of global ocean analyses to two flow‐dependent
formulations of the background‐error standard deviations (σb) for temperature and salinity in …

[HTML][HTML] An ensemble adjustment Kalman filter for the CCSM4 ocean component

AR Karspeck, S Yeager, G Danabasoglu… - Journal of …, 2013 - journals.ametsoc.org
An Ensemble Adjustment Kalman Filter for the CCSM4 Ocean Component in: Journal of Climate
Volume 26 Issue 19 (2013) Jump to Content Jump to Main Navigation Logo Logo Logo Logo …

Assimilating remote sensing and in situ observations into a coastal model of northern South China Sea using ensemble Kalman filter

Y Shu, J Zhu, D Wang, X Xiao - Continental Shelf Research, 2011 - Elsevier
Major forecast errors on the background error covariance from initial conditions, atmospheric
forcing, model open boundary conditions, and the river discharges are examined in a …

Data assimilation of Soil Moisture and Ocean Salinity (SMOS) observations into the Mercator Ocean operational system: focus on the El Niño 2015 event

B Tranchant, E Remy, E Greiner, O Legalloudec - Ocean Science, 2019 - os.copernicus.org
Monitoring sea surface salinity (SSS) is important for understanding and forecasting the
ocean circulation. It is even crucial in the context of the intensification of the water cycle. Until …

Balanced multivariate model errors of an intermediate coupled model for ensemble Kalman filter data assimilation

F Zheng, J Zhu - Journal of Geophysical Research: Oceans, 2008 - Wiley Online Library
The ensemble Kalman filter (EnKF) depends on a set of ensemble forecasts to calculate the
background error covariances. Without model error perturbations and the inflation of forecast …

Ensemble of 4DVARs (En4DVar) data assimilation in a coastal ocean circulation model, part I: methodology and ensemble statistics

I Pasmans, AL Kurapov - Ocean Modelling, 2019 - Elsevier
The ocean state off Oregon-Washington, US West coast, is highly variable in time. Under
these conditions the assumption made in traditional 4-dimensional variational data …

[HTML][HTML] An ensemble approach for the estimation of observational error illustrated for a nominal 1 global ocean model

AR Karspeck - Monthly Weather Review, 2016 - journals.ametsoc.org
An Ensemble Approach for the Estimation of Observational Error Illustrated for a Nominal 1
Global Ocean Model in: Monthly Weather Review Volume 144 Issue 5 (2016) Jump to …