Matches in SemOpenAlex for { <https://semopenalex.org/work/W201591710> ?p ?o ?g. }
Showing items 1 to 80 of
80
with 100 items per page.
- W201591710 abstract "The Global Modeling and Assimilation Office is preparing to upgrade its three-dimensional variational system to a hybrid approach in which the ensemble is generated using a square-root ensemble Kalman filter (EnKF) and the variational problem is solved using the Grid-point Statistical Interpolation system. As in most EnKF applications, we found it necessary to employ a combination of multiplicative and additive inflations, to compensate for sampling and modeling errors, respectively and, to maintain the small-member ensemble solution close to the variational solution; we also found it necessary to re-center the members of the ensemble about the variational analysis. During tuning of the filter we have found re-centering and additive inflation to play a considerably larger role than expected, particularly in a dual-resolution context when the variational analysis is ran at larger resolution than the ensemble. This led us to consider a hybrid strategy in which the members of the ensemble are generated by simply converting the variational analysis to the resolution of the ensemble and applying additive inflation, thus bypassing the EnKF. Comparisons of this, so-called, filter-free hybrid procedure with an EnKF-based hybrid procedure and a control non-hybrid, traditional, scheme show both hybrid strategies to provide equally significant improvement over the control; more interestingly, the filter-free procedure was found to give qualitatively similar results to the EnKF-based procedure." @default.
- W201591710 created "2016-06-24" @default.
- W201591710 creator A5036212059 @default.
- W201591710 creator A5052147696 @default.
- W201591710 date "2014-01-01" @default.
- W201591710 modified "2023-09-26" @default.
- W201591710 title "Hybrid Data Assimilation without Ensemble Filtering" @default.
- W201591710 cites W2037416330 @default.
- W201591710 hasPublicationYear "2014" @default.
- W201591710 type Work @default.
- W201591710 sameAs 201591710 @default.
- W201591710 citedByCount "0" @default.
- W201591710 crossrefType "journal-article" @default.
- W201591710 hasAuthorship W201591710A5036212059 @default.
- W201591710 hasAuthorship W201591710A5052147696 @default.
- W201591710 hasConcept C104114177 @default.
- W201591710 hasConcept C106131492 @default.
- W201591710 hasConcept C11413529 @default.
- W201591710 hasConcept C121332964 @default.
- W201591710 hasConcept C126255220 @default.
- W201591710 hasConcept C137800194 @default.
- W201591710 hasConcept C151730666 @default.
- W201591710 hasConcept C153294291 @default.
- W201591710 hasConcept C154945302 @default.
- W201591710 hasConcept C157286648 @default.
- W201591710 hasConcept C206833254 @default.
- W201591710 hasConcept C24552861 @default.
- W201591710 hasConcept C2779343474 @default.
- W201591710 hasConcept C31972630 @default.
- W201591710 hasConcept C33923547 @default.
- W201591710 hasConcept C41008148 @default.
- W201591710 hasConcept C523394659 @default.
- W201591710 hasConcept C79334102 @default.
- W201591710 hasConcept C86803240 @default.
- W201591710 hasConceptScore W201591710C104114177 @default.
- W201591710 hasConceptScore W201591710C106131492 @default.
- W201591710 hasConceptScore W201591710C11413529 @default.
- W201591710 hasConceptScore W201591710C121332964 @default.
- W201591710 hasConceptScore W201591710C126255220 @default.
- W201591710 hasConceptScore W201591710C137800194 @default.
- W201591710 hasConceptScore W201591710C151730666 @default.
- W201591710 hasConceptScore W201591710C153294291 @default.
- W201591710 hasConceptScore W201591710C154945302 @default.
- W201591710 hasConceptScore W201591710C157286648 @default.
- W201591710 hasConceptScore W201591710C206833254 @default.
- W201591710 hasConceptScore W201591710C24552861 @default.
- W201591710 hasConceptScore W201591710C2779343474 @default.
- W201591710 hasConceptScore W201591710C31972630 @default.
- W201591710 hasConceptScore W201591710C33923547 @default.
- W201591710 hasConceptScore W201591710C41008148 @default.
- W201591710 hasConceptScore W201591710C523394659 @default.
- W201591710 hasConceptScore W201591710C79334102 @default.
- W201591710 hasConceptScore W201591710C86803240 @default.
- W201591710 hasLocation W2015917101 @default.
- W201591710 hasOpenAccess W201591710 @default.
- W201591710 hasPrimaryLocation W2015917101 @default.
- W201591710 hasRelatedWork W1661809085 @default.
- W201591710 hasRelatedWork W1967604305 @default.
- W201591710 hasRelatedWork W1970833970 @default.
- W201591710 hasRelatedWork W1990088363 @default.
- W201591710 hasRelatedWork W2019960424 @default.
- W201591710 hasRelatedWork W2025179796 @default.
- W201591710 hasRelatedWork W2090514254 @default.
- W201591710 hasRelatedWork W2098889223 @default.
- W201591710 hasRelatedWork W2104255289 @default.
- W201591710 hasRelatedWork W2117009567 @default.
- W201591710 hasRelatedWork W2133499022 @default.
- W201591710 hasRelatedWork W2283485305 @default.
- W201591710 hasRelatedWork W2397552810 @default.
- W201591710 hasRelatedWork W2538865650 @default.
- W201591710 hasRelatedWork W2757081262 @default.
- W201591710 hasRelatedWork W2775119109 @default.
- W201591710 hasRelatedWork W2979273806 @default.
- W201591710 hasRelatedWork W3101606601 @default.
- W201591710 hasRelatedWork W3102241261 @default.
- W201591710 hasRelatedWork W62957235 @default.
- W201591710 isParatext "false" @default.
- W201591710 isRetracted "false" @default.
- W201591710 magId "201591710" @default.
- W201591710 workType "article" @default.