dc.contributor.author | Halliwell Jr, G. R. | |
dc.contributor.author | Srinivasan, A. | |
dc.contributor.author | Kourafalou, V. | |
dc.contributor.author | Yang, H. | |
dc.contributor.author | Willey, D. | |
dc.contributor.author | Le Henaffe, M. | |
dc.contributor.author | Atlas, R. | |
dc.date.accessioned | 2020-02-25T15:50:35Z | |
dc.date.available | 2020-02-25T15:50:35Z | |
dc.date.issued | 2014 | |
dc.identifier.citation | 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-13-00011.1 | en_US |
dc.identifier.uri | http://hdl.handle.net/11329/1222 | |
dc.identifier.uri | http://dx.doi.org/10.25607/OBP-737 | |
dc.description.abstract | 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 model type is used (the ‘‘fraternal twin’’ approach), the forecast model is
configured differently so that it approximately satisfies the requirement that differences (errors) with respect
to the NR grow at the same rate as errors that develop between state-of-the-art ocean models and the true
ocean. Rigorous evaluation procedures developed for atmospheric OSSEs are then applied by first performing observing system experiments (OSEs) to evaluate one or more existing observing systems. OSSEs are then performed that are identical except for the assimilation of synthetic observations simulated from the NR.
Very similar impact assessments were realized between each OSE–OSSE pair, thus validating the system
without the need for calibration. | en_US |
dc.language.iso | en | en_US |
dc.rights | Attribution 4.0 International | * |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | * |
dc.subject.other | OSSEs | en_US |
dc.subject.other | Evaluation | en_US |
dc.subject.other | Aircraft observations | en_US |
dc.subject.other | Satellite altimetry | en_US |
dc.subject.other | Data assimilation | en_US |
dc.subject.other | Profilers | en_US |
dc.subject.other | Ocean model | en_US |
dc.title | Rigorous Evaluation of a Fraternal Twin Ocean OSSE System for the Open Gulf of Mexico. | en_US |
dc.type | Journal Contribution | en_US |
dc.description.refereed | Refereed | en_US |
dc.format.pagerange | pp.105-130 | en_US |
dc.identifier.doi | 10.1175/JTECH-D-13-00011.1 | |
dc.subject.parameterDiscipline | Parameter Discipline::Physical oceanography | en_US |
dc.subject.dmProcesses | Data Management Practices::Data processing | en_US |
dc.bibliographicCitation.title | Journal of Atmospheric and Oceanic Technology | en_US |
dc.bibliographicCitation.volume | 31 | en_US |
dc.description.sdg | 14.A | en_US |
dc.description.maturitylevel | TRL 6 System/subsystem model or prototyping demonstration in a relevant end-to-end environment (ground or space) | en_US |
dc.description.bptype | Manual (incl. handbook, guide, cookbook etc) | en_US |
obps.contact.contactname | George Halliwell | |
obps.contact.contactemail | george.halliwell@noaa.gov | |
obps.resourceurl.publisher | https://journals.ametsoc.org/doi/full/10.1175/JTECH-D-13-00011.1?mobileUi=0 | en_US |