Implementing a variational data assimilation system in an operational 1/4 degree global ocean model
J Waters, DJ Lea, MJ Martin, I Mirouze… - Quarterly Journal of …, 2015 - Wiley Online Library
This article describes the implementation of an incremental first guess at an appropriate time
three‐dimensional variational (3 DVAR) data assimilation scheme, NEMOVAR, in the Met …
three‐dimensional variational (3 DVAR) data assimilation scheme, NEMOVAR, in the Met …
The new eddy-permitting ORAP5 ocean reanalysis: description, evaluation and uncertainties in climate signals
H Zuo, MA Balmaseda, K Mogensen - Climate Dynamics, 2017 - Springer
A new eddy-permitting ocean reanalysis has been recently completed at ECMWF. It is called
Ocean ReAnalysis Pilot 5 (ORAP5), and it spans the period 1979–2012. This work describes …
Ocean ReAnalysis Pilot 5 (ORAP5), and it spans the period 1979–2012. This work describes …
An historical analysis of the California Current circulation using ROMS 4D-Var: System configuration and diagnostics
Abstract The Regional Ocean Modeling System (ROMS) 4-dimensional variational (4D-Var)
data assimilation tool has been used to compute two sequences of circulation analyses for …
data assimilation tool has been used to compute two sequences of circulation analyses for …
A data-assimilative model reanalysis of the US Mid Atlantic Bight and Gulf of Maine: Configuration and comparison to observations and global ocean models
Abstract A 15-year reanalysis (2007–2021) of circulation in the coastal ocean and adjacent
deep sea of the northeast US continental shelf is described. The analysis uses the Regional …
deep sea of the northeast US continental shelf is described. The analysis uses the Regional …
An ensemble of eddy-permitting global ocean reanalyses from the MyOcean project
A set of four eddy-permitting global ocean reanalyses produced in the framework of the
MyOcean project have been compared over the altimetry period 1993–2011. The main …
MyOcean project have been compared over the altimetry period 1993–2011. The main …
4DEnVar: link with 4D state formulation of variational assimilation and different possible implementations
G Desroziers, JT Camino, L Berre - Quarterly Journal of the …, 2014 - Wiley Online Library
The four‐dimensional ensemble variational (4DEnVar) formulation is receiving increasing
interest, especially in numerical weather prediction centres, which until now have mostly …
interest, especially in numerical weather prediction centres, which until now have mostly …
Optimal reduced space for variational data assimilation
Data Assimilation (DA) is an uncertainty quantification technique used to incorporate
observed data into a prediction model in order to improve numerical forecasted results …
observed data into a prediction model in order to improve numerical forecasted results …
4D-Var data assimilation and observation impact on surface transport of HF-Radar derived surface currents in the North-Western Mediterranean Sea
We investigated the effect of the assimilation of surface velocities from two HF-Radars
(HFRs) and satellite sea surface temperature (SST) into an ocean circulation model …
(HFRs) and satellite sea surface temperature (SST) into an ocean circulation model …
Impact of correlated observation errors on the conditioning of variational data assimilation problems
O Goux, S Gürol, AT Weaver… - … Linear Algebra with …, 2024 - Wiley Online Library
An important class of nonlinear weighted least‐squares problems arises from the
assimilation of observations in atmospheric and ocean models. In variational data …
assimilation of observations in atmospheric and ocean models. In variational data …
Improving sea surface temperature in a regional ocean model through refined sea surface temperature assimilation
SC Iversen, AK Sperrevik, O Goux - Ocean Science, 2023 - os.copernicus.org
Infrared (IR) and passive microwave (PMW) satellite sea surface temperature (SST)
retrievals are valuable to assimilate into high-resolution regional ocean forecast models …
retrievals are valuable to assimilate into high-resolution regional ocean forecast models …