A technique for objective analysis and design of oceanographic experiments applied to MODE-73

Bretherton, F. P.; Davis, Russ E.; Fandry, C. B.

doi:10.1016/0011-7471(76)90001-2

Cited by 859 publications

(780 citation statements)

References 1 publication

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“…The interpolated SLA maps have been provided by CLS, Toulouse. The maps of SLA, combining T/P and ERS data, have been interpolated on a regular 0.2j Â 0.2j grid using a suboptimal space/time objective analysis (Bretherton et al, 1976) which takes into account along-track correlated errors (for a more detailed description of this mapping technique see Le ).…”

Section: Altimeter Datamentioning

confidence: 99%

Deep structure of an open sea eddy in the Algerian Basin

Ruiz¹,

Font²,

Emelianov³

et al. 2002

Journal of Marine Systems

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The Algerian Basin dynamics is dominated by the presence of very energetic mesoscale structures. Deep open sea eddies are key features that influence the regional circulation of water masses at all depths. In May 1998, an open sea eddy was sampled near 38jN 2jE by means of CTD, Acoustic Doppler Current Profiler (ADCP) and surface Lagrangian drifters. For the first time, it has been possible to characterise one of these mesoscale structures in its full depth, down to 2800 m. The density distribution indicated the presence of lighter water in the centre of the eddy from the surface to the bottom. The direct velocity measurements in the surface layer, plus the determination of the baroclinic shear from CTD data, evidenced that the anticyclonic motion was present in the whole water depth. D

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Section: Altimeter Datamentioning

confidence: 99%

Deep structure of an open sea eddy in the Algerian Basin

Ruiz¹,

Font²,

Emelianov³

et al. 2002

Journal of Marine Systems

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“…We used the optimal interpolation (Bretherton et al, 1976;Wunsch and Zlotnicki, 1984;Imawaki et al, 1991) to reduce this error and extract the most reliable signal from the data. Details of the optimal interpolation used in this study are described in Ichikawa and Imawaki (1996).…”

Section: Sea Surface Dynamic Topographymentioning

confidence: 99%

Eddy activities of the surface layer in the western North Pacific detected by satellite altimeter and radiometer

Aoki

Imawaki

1996

J Oceanogr

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“…Moreover, it can be used for scattered data approximation as well as for scattered data interpolation, and it provides a built-in way to specify error bars on the scattered samples, which can be quite useful for problems in which the scattered samples are obtained via physical measurements. Early attempts to deal with scattered oceanographic data used statistical methods such as Optimal Interpolation [10].…”

Section: Related Workmentioning

confidence: 99%

Interpolating sparse scattered data using flow information

Streletz

Gebbie

Kreylos

et al. 2016

Journal of Computational Science

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a b s t r a c tScattered data interpolation and approximation techniques allow for the reconstruction of a scalar field based upon a finite number of scattered samples of the field. In general, the fidelity of the reconstruction with respect to the original scalar field tends to deteriorate as the number of samples decreases. For the situation of very sparse sampling, the results may not be acceptable at all. However, if it is known that the scalar field of interest is correlated with a known flow field -as is the case when the scalar field represents the value of an oceanographic tracer that propagates under the influence of the ocean's flow -then this knowledge can be exploited to enhance the scattered data reconstruction method. One way to exploit flow field information is to use it to construct a modified notion of distance between points. Replacing the standard Euclidean distance metric with a flow-field-aware notion of distance provides a method for extending standard scattered data interpolation methods into flow-based methods that produce superior results for very sparse data. The resulting reconstructions typically have lower root-mean-square errors than reconstructions that do not use the flow information, and qualitatively they often appear physically more realistic.

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A technique for objective analysis and design of oceanographic experiments applied to MODE-73

Cited by 859 publications

References 1 publication

Deep structure of an open sea eddy in the Algerian Basin

Deep structure of an open sea eddy in the Algerian Basin

Eddy activities of the surface layer in the western North Pacific detected by satellite altimeter and radiometer

Interpolating sparse scattered data using flow information

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