Ocean Data Assimilation
Treating sample covariances for use in strongly coupled atmosphere-ocean data assimilation
... standard data assimilation framework it will need to be ...atmosphere-ocean data assimilation; specifically, we investigate two strategies for treating fully coupled sample error ...
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Weakly coupled atmosphere–ocean data assimilation in the Canadian global prediction system (v1)
... coupled data assimilation (WCDA) system has been developed (Lea et ...and ocean analy- ses in a 6 h assimilation ...the ocean SST diurnal cycle issue and an erro- neous coupled river ...
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Ocean Data Assimilation and Initialization Procedure for the Coupled GFDL/URI Hurricane Prediction System
... initial ocean fields, including the position and 3D structure of the major fronts in the Atlantic basin: the Gulf Stream (GS) and Loop Current ...The ocean data assimilation and initialization ...
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Decadal variability of heat content in the South China Sea inferred from observation data and an ocean data assimilation product
... observation data set of temperature and the Simple Ocean Data Assimilation (SODA), the decadal variability of upper ocean heat content (0–400 m; hereafter, OHC) in the South China Sea ...
5
Ensemble Data Assimilation Without Ensembles: Methodology and Application to Ocean Data Assimilation
... upper ocean, SAFE, EnOI and UOI all show significant degradations from the control in the Western Equatorial South Pacific (red areas in ...upper ocean salt content is heavily influenced by precipitation ...
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A multiscale ocean data assimilation approach combining spatial and spectral localisation
... the ocean fields in order to determine whether and how the scale separa- tion could be used in the data assimilation ...the assimilation of the signal of an observation at these reference ...
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Integration of Ocean Data Assimilation System In the NOAA UFS R2O Project
... JEDI Generic data assimilation algorithms Atmospher e Aerosol Constituents Ocean Land Sea ice UFS Atmospher e Hybrid 4DEnVar Aerosols Constituents Ocean LETKF Land EnKF Sea ice LETKF.. [r] ...
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How essential are Argo observations to constrain a global ocean data assimilation system?
... Mercator Ocean 0.25 ◦ global ocean analysis and forecasting ...altimeter data and Argo and other in situ observa- tions from the Coriolis data ...Argo data are with- ...Argo data ...
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Assessment of ocean analysis and forecast from an atmosphere–ocean coupled data assimilation operational system
... and ocean forecast prod- ucts from a single system by ...the ocean resolution to 1/12 ◦ as well as incorporating a wave model and using ensemble information to improve the ocean data ...
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Ocean spectral data assimilation without background error covariance matrix
... existing ocean data assimilation schemes such as the optimal interpolation ...of ocean topography, and independent on any observational data and background ...observational data ...
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Estimation of the Ocean Skin Temperature using the NASA GEOS Atmospheric Data Assimilation System
... coupled data assimilation system is motivated by the goal to achieve an inter- nally self-consistent state of the entire earth system, and also its temporal evolution across different components ( Dee et ...
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Estimating forecast error covariances for strongly coupled atmosphere-ocean 4D-Var data assimilation
... coupled data assimilation emulates the real-world pairing of the atmosphere and ocean by solving the assimilation problem in terms of a single combined atmosphere–ocean ...
25
Data analysis and data assimilation of Arctic Ocean observations
... Atlantic Ocean with a tendency be warm relative to near surface CTD toward the Pacific ...Arctic Ocean where the model notably represents the ocean water as too cold and salty both during and after ...
178
Lagrangian data assimilation into layered ocean model
... Data assimilation techniques, such as 3D-Var (Daley 1991; Kalnay 2003) and 4D-Var are currently widely used at national weather and ocean forecasting ...assimilate data into an ocean ...
107
A material balancing scheme for ocean colour data assimilation
... for assimilation has a direct effect on the phytoplankton increment and therefore on all of the other biogeochemical tracer ...h assimilation time-step, these errors can accumulate over long time scales, ...
57
Multi-timescale data assimilation for atmosphere–ocean state estimates
... proxy data to inform a climate recon- struction, though there can be additional ...offline data-assimilation-based pseudoproxy exper- iments, we find that atmosphere–ocean states are most ...
14
Argo data assimilation into HYCOM with an EnOI method in the Atlantic Ocean
... 6 Conclusions and discussion In this work, an EnOI scheme to assimilate Argo data into HYCOM was successfully constructed and implemented. The first results were evaluated against observations and analyses over ...
19
Develop a Hybrid Coordinate Ocean Model with Data Assimilation Capabilities
... the ocean is stratified and thus can largely be viewed as consisting of layers of water that move to preserve their densities (Bleck and Chassignet, ...the ocean is stratified and pressure-like (specified ...
6
Improving the Ocean Initialization of Coupled Hurricane–Ocean Models Using Feature-Based Data Assimilation
... the ocean thermal structure. Here, a new feature-based (F-B) ocean initialization procedure in the GFDL/University of Rhode Island (URI) coupled hurricane prediction system is presented to account for ...
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Data assimilation cycle length and observation impact in mesoscale ocean forecasting
... global ocean forecasting system using cycle lengths of 1 and 3 ...Meteorology Ocean Model Analysis and Predic- tion System (OceanMAPS) version ...day data assimilation cycle and carries out ...
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