Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/9517
DC Field | Value | Language |
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dc.contributor.authorall | Farina, R.; CNR, ICAR, Inst High Performance Comput & Networking, I-80131 Naples, Italy | en |
dc.contributor.authorall | Dobricic, S.; Ctr Euromediterraneo Cambiamenti Climat, Bologna, Italy | en |
dc.contributor.authorall | Storto, A.; Ctr Euromediterraneo Cambiamenti Climat, Bologna, Italy | en |
dc.contributor.authorall | Masina, S.; Ctr Euromediterraneo Cambiamenti Climat, Bologna, Italy | en |
dc.contributor.authorall | Cuomo, S.; Univ Naples Federico II, Dept Math & Applicat, I-80126 Naples, Italy | en |
dc.date.accessioned | 2015-04-16T08:46:45Z | en |
dc.date.available | 2015-04-16T08:46:45Z | en |
dc.date.issued | 2015-03 | en |
dc.identifier.uri | http://hdl.handle.net/2122/9517 | en |
dc.description.abstract | We propose an improvement of an oceanographic three dimensional variational assimilation scheme (3D-VAR), named OceanVar, by introducing a recursive filter (RF) with the third order of accuracy (3rd-RF), instead of an RFwith first order of accuracy (1st-RF), to approximate horizontal Gaussian covariances. An advantage of the proposed scheme is that the CPU's time can be substantially reduced with benefits on the large scale applications. Experiments estimating the impact of 3rd-RF are performed by assimilating oceanographic data in two realistic oceanographic applications. The results evince benefits in terms of assimilation process computational time, accuracy of the Gaussian correlation modeling, and show that the 3rd-RF is a suitable tool for operational data assimilation. | en |
dc.description.sponsorship | The research leading to these results has received funding from the Italian Ministry of Education, University and Research and the Italian Ministry of Environment, Land and Sea under the GEMINA and Next Data projects. We also thank the researchers Ardelio Galletti and Livia Marcellino of the University of Naples "Parthenope", Department of Science and Technology, Italy, for useful discussions. Finally we specially thank the anonymous referees for the work improvement. | en |
dc.language.iso | English | en |
dc.publisher.name | Elsevier Inc NY Journals | en |
dc.relation.ispartof | Journal of computational physics | en |
dc.relation.ispartofseries | /284(2015) | en |
dc.relation.isversionof | http://www.sciencedirect.com/science/article/pii/S0021999115000042 | en |
dc.subject | VARIATIONAL ASSIMILATION | en |
dc.subject | OBJECTIVE ANALYSIS | en |
dc.subject | BACKGROUND ERROR | en |
dc.subject | MODEL | en |
dc.subject | EQUATION | en |
dc.subject | FILTERS | en |
dc.subject | IMPACT | en |
dc.subject | OCEAN | en |
dc.title | A Revised Scheme to Compute Horizontal Covariances in an Oceanographic 3D-VAR Assimilation System. | en |
dc.type | article | en |
dc.description.status | Published | en |
dc.type.QualityControl | Peer-reviewed | en |
dc.description.pagenumber | 631-647 | en |
dc.subject.INGV | 03. Hydrosphere::03.01. General::03.01.04. Ocean data assimilation and reanalysis | en |
dc.identifier.doi | 10.1016/j.jcp.2015.01.003 | en |
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dc.description.obiettivoSpecifico | 4A. Clima e Oceani | en |
dc.description.journalType | JCR Journal | en |
dc.description.fulltext | open | en |
dc.relation.issn | 0021-9991 | en |
dc.relation.eissn | 1090-2716 | en |
dc.contributor.author | Farina, R. | en |
dc.contributor.author | Dobricic, S. | en |
dc.contributor.author | Storto, A. | en |
dc.contributor.author | Masina, S. | en |
dc.contributor.author | Cuomo, S. | en |
dc.contributor.department | CNR, ICAR, Inst High Performance Comput & Networking, I-80131 Naples, Italy | en |
dc.contributor.department | Ctr Euromediterraneo Cambiamenti Climat, Bologna, Italy | en |
dc.contributor.department | Ctr Euromediterraneo Cambiamenti Climat, Bologna, Italy | en |
dc.contributor.department | Ctr Euromediterraneo Cambiamenti Climat, Bologna, Italy | en |
dc.contributor.department | Univ Naples Federico II, Dept Math & Applicat, I-80126 Naples, Italy | en |
item.openairetype | article | - |
item.cerifentitytype | Publications | - |
item.languageiso639-1 | en | - |
item.grantfulltext | open | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | CNR, ICAR, Inst High Performance Comput & Networking, I-80131 Naples, Italy | - |
crisitem.author.dept | CNR-Ismar | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Bologna, Bologna, Italia | - |
crisitem.author.dept | Univ Naples Federico II, Dept Math & Applicat, I-80126 Naples, Italy | - |
crisitem.author.orcid | 0000-0001-6273-7065 | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.classification.parent | 03. Hydrosphere | - |
Appears in Collections: | Article published / in press |
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Farina_et_al_2015.pdf | Post-print article | 4.1 MB | Adobe PDF | View/Open |
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