Rigorous Evaluation of a Fraternal Twin Ocean OSSE System for the Open Gulf of Mexico.

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Date
2014Author
Halliwell Jr, G. R.
Srinivasan, A.
Kourafalou, V.
Yang, H.
Willey, D.
Le Henaffe, M.
Atlas, R.
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Anew fraternal twin ocean observing system simulation experiment (OSSE) system is validated in a Gulf of
Mexico domain. It is the first ocean system that takes full advantage of design criteria and rigorous evaluation
procedures developed to validate atmosphere OSSE systems that have not been fully implemented for the
ocean. These procedures are necessary to determine a priori that the OSSE system does not overestimate or
underestimate observing system impacts. The new system consists of 1) a nature run (NR) stipulated to
represent the true ocean, 2) a data assimilation system consisting of a second ocean model (the ‘‘forecast
model’’) coupled to a new ocean data assimilation system, and 3) software to simulate observations from the
NR and to add realistic errors. The system design is described to illustrate the requirements of a validated
OSSE system. The chosen NR reproduces the climatology and variability of ocean phenomena with sufficient
realism. Although the same ocean m.....
Journal
Journal of Atmospheric and Oceanic TechnologyVolume
31Page Range
pp.105-130Document Language
enSustainable Development Goals (SDG)
14.AMaturity Level
TRL 6 System/subsystem model or prototyping demonstration in a relevant end-to-end environment (ground or space)Best Practice Type
Manual (incl. handbook, guide, cookbook etc)DOI Original
10.1175/JTECH-D-13-00011.1Citation
Halliwell Jr, G.R.; Srinivasan, A.; Kourafalou, V.; Yang, H.; Willey, D.; Le Hénaff, M. and Atlas, R. (2014) Rigorous Evaluation of a Fraternal Twin Ocean OSSE System for the Open Gulf of Mexico. Journal of Atmospheric and Oceanic Technology, 31, pp.105-130. DOI: 10.1175/JTECH-D-13-00011.1Collections
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