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| Titel |
Development of the Diva tool for the interpolation of oceanic data |
| VerfasserIn |
Charles Troupin, Mohamed Ouberdous, Alexander Barth, Jean-Marie Beckers |
| Konferenz |
EGU General Assembly 2013
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 15 (2013) |
| Datensatznummer |
250077538
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| Zusammenfassung |
| In ocean sciences, in situ data are sparsely distributed in space and time, and their number is
rather small relative to the underlying length-scales. From these sparse observations, a
frequent operation consists in generating fields on a regular grid, either through interpolation
or approximation of the observations.
In order to account for the sparse distribution and for the errors that affect the
measurements, the Variational Interpolation Method was developed in the early 1990’s and
improved until nowadays in the Data-Interpolating Variational Analysis (Diva) tool. The
method has been applied to produce climatologies for various regions of the World Ocean
(Mediterranean, Baltic, Arctic, Adriatic, -¦Seas) and for different variables (temperature,
salinity, phosphate concentrations, -¦).
In this work we present the evolution with time and the latest additions to the Diva tool:
the formulation of the method,
the objective determination of the parameters,
the estimation of the error field,
the web-interface. |
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