Matches in SemOpenAlex for { <https://semopenalex.org/work/W4311854907> ?p ?o ?g. }
Showing items 1 to 73 of
73
with 100 items per page.
- W4311854907 abstract "<strong class=journal-contentHeaderColor>Abstract.</strong> The reconstruction of sea surface currents from satellite altimeter data is a key challenge in spatial oceanography, especially with the upcoming wide-swath SWOT (Surface Ocean and Water Topography) altimeter mission. Operational systems however generally fail to retrieve mesoscale dynamics for horizontal scales below 100 km and time-scale below 10 days. Here, we address this challenge through the 4DVarnet framework, an end-to-end neural scheme backed on a variational data assimilation formulation. We introduce a parametrization of the 4DVarNet scheme dedicated to the space-time interpolation of satellite altimeter data. Within an observing system simulation experiment (NATL60), we demonstrate the relevance of the proposed approach both for nadir and nadir+swot altimeter configurations for two contrasted case-study regions in terms of upper ocean dynamics. We report relative improvement with respect to the operational optimal interpolation between 30 % and 60 % in terms of reconstruction error. Interestingly, for the nadir+swot altimeter configuration, we reach resolved space-time scales below 70 km and 7 days. The code is open-source to enable reproductibility and future collaborative developments. Beyond its applicability to large-scale domains, we also address uncertainty quantification issues and generalization properties of the proposed learning setting. We discuss further future research avenues and extensions to other ocean data assimilation and space oceanography challenges." @default.
- W4311854907 created "2023-01-01" @default.
- W4311854907 creator A5028955976 @default.
- W4311854907 date "2022-12-18" @default.
- W4311854907 modified "2023-10-18" @default.
- W4311854907 title "Reply on CEC1" @default.
- W4311854907 doi "https://doi.org/10.5194/gmd-2022-241-ac1" @default.
- W4311854907 hasPublicationYear "2022" @default.
- W4311854907 type Work @default.
- W4311854907 citedByCount "0" @default.
- W4311854907 crossrefType "peer-review" @default.
- W4311854907 hasAuthorship W4311854907A5028955976 @default.
- W4311854907 hasBestOaLocation W43118549071 @default.
- W4311854907 hasConcept C104114177 @default.
- W4311854907 hasConcept C119059837 @default.
- W4311854907 hasConcept C127413603 @default.
- W4311854907 hasConcept C13280743 @default.
- W4311854907 hasConcept C137800194 @default.
- W4311854907 hasConcept C142672198 @default.
- W4311854907 hasConcept C144133560 @default.
- W4311854907 hasConcept C146978453 @default.
- W4311854907 hasConcept C150320492 @default.
- W4311854907 hasConcept C153294291 @default.
- W4311854907 hasConcept C154945302 @default.
- W4311854907 hasConcept C162853370 @default.
- W4311854907 hasConcept C17534553 @default.
- W4311854907 hasConcept C19269812 @default.
- W4311854907 hasConcept C205649164 @default.
- W4311854907 hasConcept C24552861 @default.
- W4311854907 hasConcept C2778755073 @default.
- W4311854907 hasConcept C40382383 @default.
- W4311854907 hasConcept C41008148 @default.
- W4311854907 hasConcept C58640448 @default.
- W4311854907 hasConcept C62649853 @default.
- W4311854907 hasConcept C88575799 @default.
- W4311854907 hasConceptScore W4311854907C104114177 @default.
- W4311854907 hasConceptScore W4311854907C119059837 @default.
- W4311854907 hasConceptScore W4311854907C127413603 @default.
- W4311854907 hasConceptScore W4311854907C13280743 @default.
- W4311854907 hasConceptScore W4311854907C137800194 @default.
- W4311854907 hasConceptScore W4311854907C142672198 @default.
- W4311854907 hasConceptScore W4311854907C144133560 @default.
- W4311854907 hasConceptScore W4311854907C146978453 @default.
- W4311854907 hasConceptScore W4311854907C150320492 @default.
- W4311854907 hasConceptScore W4311854907C153294291 @default.
- W4311854907 hasConceptScore W4311854907C154945302 @default.
- W4311854907 hasConceptScore W4311854907C162853370 @default.
- W4311854907 hasConceptScore W4311854907C17534553 @default.
- W4311854907 hasConceptScore W4311854907C19269812 @default.
- W4311854907 hasConceptScore W4311854907C205649164 @default.
- W4311854907 hasConceptScore W4311854907C24552861 @default.
- W4311854907 hasConceptScore W4311854907C2778755073 @default.
- W4311854907 hasConceptScore W4311854907C40382383 @default.
- W4311854907 hasConceptScore W4311854907C41008148 @default.
- W4311854907 hasConceptScore W4311854907C58640448 @default.
- W4311854907 hasConceptScore W4311854907C62649853 @default.
- W4311854907 hasConceptScore W4311854907C88575799 @default.
- W4311854907 hasLocation W43118549071 @default.
- W4311854907 hasOpenAccess W4311854907 @default.
- W4311854907 hasPrimaryLocation W43118549071 @default.
- W4311854907 hasRelatedWork W1857233491 @default.
- W4311854907 hasRelatedWork W2114324692 @default.
- W4311854907 hasRelatedWork W2169505276 @default.
- W4311854907 hasRelatedWork W2495635860 @default.
- W4311854907 hasRelatedWork W2999208721 @default.
- W4311854907 hasRelatedWork W3148054453 @default.
- W4311854907 hasRelatedWork W3186670766 @default.
- W4311854907 hasRelatedWork W4283806065 @default.
- W4311854907 hasRelatedWork W4321209272 @default.
- W4311854907 hasRelatedWork W4362720309 @default.
- W4311854907 isParatext "false" @default.
- W4311854907 isRetracted "false" @default.
- W4311854907 workType "peer-review" @default.