DINEOF reconstruction of clouded images including error maps – application to the Sea-Surface Temperature around Corsican Island
We present an extension to the Data INterpolating Empirical Orthogonal Functions (DINEOF) technique which allows not only to fill in clouded images but also to provide an estimation of the error covariance of the reconstruction. This additional information is obtained by an analogy with optimal inte...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Copernicus Publications
2006-01-01
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| Series: | Ocean Science |
| Online Access: | http://www.ocean-sci.net/2/183/2006/os-2-183-2006.pdf |
| _version_ | 1818337650579341312 |
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| author | J.-M. Beckers J.-M. Beckers A. Barth A. Alvera-Azcárate |
| author_facet | J.-M. Beckers J.-M. Beckers A. Barth A. Alvera-Azcárate |
| author_sort | J.-M. Beckers |
| collection | DOAJ |
| description | We present an extension to the Data INterpolating Empirical Orthogonal Functions (DINEOF) technique which allows not only to fill in clouded images but also to provide an estimation of the error covariance of the reconstruction. This additional information is obtained by an analogy with optimal interpolation. It is shown that the error fields can be obtained with a clever rearrangement of calculations at a cost comparable to that of the interpolation itself. The method is presented on the reconstruction of sea-surface temperature in the Ligurian Sea and around the Corsican Island (Mediterranean Sea), including the calculation of inter-annual variability of average surface values and their expected errors. The application shows that the error fields are not only able to reflect the data-coverage structure but also the covariances of the physical fields. |
| first_indexed | 2024-12-13T14:58:35Z |
| format | Article |
| id | doaj.art-77b8088793654c9699aea4fa88f9ac7a |
| institution | Directory Open Access Journal |
| issn | 1812-0784 1812-0792 |
| language | English |
| last_indexed | 2024-12-13T14:58:35Z |
| publishDate | 2006-01-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Ocean Science |
| spelling | doaj.art-77b8088793654c9699aea4fa88f9ac7a2022-12-21T23:41:10ZengCopernicus PublicationsOcean Science1812-07841812-07922006-01-0122183199DINEOF reconstruction of clouded images including error maps – application to the Sea-Surface Temperature around Corsican IslandJ.-M. BeckersJ.-M. BeckersA. BarthA. Alvera-AzcárateWe present an extension to the Data INterpolating Empirical Orthogonal Functions (DINEOF) technique which allows not only to fill in clouded images but also to provide an estimation of the error covariance of the reconstruction. This additional information is obtained by an analogy with optimal interpolation. It is shown that the error fields can be obtained with a clever rearrangement of calculations at a cost comparable to that of the interpolation itself. The method is presented on the reconstruction of sea-surface temperature in the Ligurian Sea and around the Corsican Island (Mediterranean Sea), including the calculation of inter-annual variability of average surface values and their expected errors. The application shows that the error fields are not only able to reflect the data-coverage structure but also the covariances of the physical fields.http://www.ocean-sci.net/2/183/2006/os-2-183-2006.pdf |
| spellingShingle | J.-M. Beckers J.-M. Beckers A. Barth A. Alvera-Azcárate DINEOF reconstruction of clouded images including error maps – application to the Sea-Surface Temperature around Corsican Island Ocean Science |
| title | DINEOF reconstruction of clouded images including error maps – application to the Sea-Surface Temperature around Corsican Island |
| title_full | DINEOF reconstruction of clouded images including error maps – application to the Sea-Surface Temperature around Corsican Island |
| title_fullStr | DINEOF reconstruction of clouded images including error maps – application to the Sea-Surface Temperature around Corsican Island |
| title_full_unstemmed | DINEOF reconstruction of clouded images including error maps – application to the Sea-Surface Temperature around Corsican Island |
| title_short | DINEOF reconstruction of clouded images including error maps – application to the Sea-Surface Temperature around Corsican Island |
| title_sort | dineof reconstruction of clouded images including error maps ndash application to the sea surface temperature around corsican island |
| url | http://www.ocean-sci.net/2/183/2006/os-2-183-2006.pdf |
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