An overview of uncertainty quantification techniques with application to oceanic and oil-spill simulations

Handle URI:
http://hdl.handle.net/10754/611769
Title:
An overview of uncertainty quantification techniques with application to oceanic and oil-spill simulations
Authors:
Iskandarani, Mohamed; Wang, Shitao; Srinivasan, Ashwanth; Carlisle Thacker, W.; Winokur, Justin; Knio, Omar
Abstract:
We give an overview of four different ensemble-based techniques for uncertainty quantification and illustrate their application in the context of oil plume simulations. These techniques share the common paradigm of constructing a model proxy that efficiently captures the functional dependence of the model output on uncertain model inputs. This proxy is then used to explore the space of uncertain inputs using a large number of samples, so that reliable estimates of the model's output statistics can be calculated. Three of these techniques use polynomial chaos (PC) expansions to construct the model proxy, but they differ in their approach to determining the expansions' coefficients; the fourth technique uses Gaussian Process Regression (GPR). An integral plume model for simulating the Deepwater Horizon oil-gas blowout provides examples for illustrating the different techniques. A Monte Carlo ensemble of 50,000 model simulations is used for gauging the performance of the different proxies. The examples illustrate how regression-based techniques can outperform projection-based techniques when the model output is noisy. They also demonstrate that robust uncertainty analysis can be performed at a fraction of the cost of the Monte Carlo calculation.
KAUST Department:
Computer, Electrical and Mathematical Science and Engineering (CEMSE) Division
Citation:
An overview of uncertainty quantification techniques with application to oceanic and oil-spill simulations 2016, 121 (4):2789 Journal of Geophysical Research: Oceans
Publisher:
Wiley-Blackwell
Journal:
Journal of Geophysical Research: Oceans
Issue Date:
22-Apr-2016
DOI:
10.1002/2015JC011366
Type:
Article
ISSN:
21699275
Sponsors:
This research was made possible in part by a grant from BP/The Gulf of Mexico Research Initiative to the CARTHE and DEEP-C Consortia and by the Office of Naval Research, award N00014-101-0498. J. Winokur and O. M. Knio were also supported in part by the U.S. Department of Energy (DOE), Office of Science, Office of Advanced Scientific Computing Research, under award DE-SC0008789. This research was conducted in collaboration with and using the resources of the University of Miami Center for Computational Science. The source code for the model used in this study, TAMOC, is freely available at https://github.com/socolofs/tamoc. The data and input files necessary to reproduce the experiments are available from the authors upon request (swang@rsmas.miami.edu). The data are archived at https://github.com/Shitao/A-comparison-of-uncertainty-quantification-techniques-using-integral-plume-model.
Additional Links:
http://doi.wiley.com/10.1002/2015JC011366
Appears in Collections:
Articles

Full metadata record

DC FieldValue Language
dc.contributor.authorIskandarani, Mohameden
dc.contributor.authorWang, Shitaoen
dc.contributor.authorSrinivasan, Ashwanthen
dc.contributor.authorCarlisle Thacker, W.en
dc.contributor.authorWinokur, Justinen
dc.contributor.authorKnio, Omaren
dc.date.accessioned2016-06-06T07:25:47Z-
dc.date.available2016-06-06T07:25:47Z-
dc.date.issued2016-04-22-
dc.identifier.citationAn overview of uncertainty quantification techniques with application to oceanic and oil-spill simulations 2016, 121 (4):2789 Journal of Geophysical Research: Oceansen
dc.identifier.issn21699275-
dc.identifier.doi10.1002/2015JC011366-
dc.identifier.urihttp://hdl.handle.net/10754/611769-
dc.description.abstractWe give an overview of four different ensemble-based techniques for uncertainty quantification and illustrate their application in the context of oil plume simulations. These techniques share the common paradigm of constructing a model proxy that efficiently captures the functional dependence of the model output on uncertain model inputs. This proxy is then used to explore the space of uncertain inputs using a large number of samples, so that reliable estimates of the model's output statistics can be calculated. Three of these techniques use polynomial chaos (PC) expansions to construct the model proxy, but they differ in their approach to determining the expansions' coefficients; the fourth technique uses Gaussian Process Regression (GPR). An integral plume model for simulating the Deepwater Horizon oil-gas blowout provides examples for illustrating the different techniques. A Monte Carlo ensemble of 50,000 model simulations is used for gauging the performance of the different proxies. The examples illustrate how regression-based techniques can outperform projection-based techniques when the model output is noisy. They also demonstrate that robust uncertainty analysis can be performed at a fraction of the cost of the Monte Carlo calculation.en
dc.description.sponsorshipThis research was made possible in part by a grant from BP/The Gulf of Mexico Research Initiative to the CARTHE and DEEP-C Consortia and by the Office of Naval Research, award N00014-101-0498. J. Winokur and O. M. Knio were also supported in part by the U.S. Department of Energy (DOE), Office of Science, Office of Advanced Scientific Computing Research, under award DE-SC0008789. This research was conducted in collaboration with and using the resources of the University of Miami Center for Computational Science. The source code for the model used in this study, TAMOC, is freely available at https://github.com/socolofs/tamoc. The data and input files necessary to reproduce the experiments are available from the authors upon request (swang@rsmas.miami.edu). The data are archived at https://github.com/Shitao/A-comparison-of-uncertainty-quantification-techniques-using-integral-plume-model.en
dc.language.isoenen
dc.publisherWiley-Blackwellen
dc.relation.urlhttp://doi.wiley.com/10.1002/2015JC011366en
dc.rightsArchived with thanks to Journal of Geophysical Research: Oceans. An edited version of this paper was published by AGU. Copyright (2016) American Geophysical Union.en
dc.titleAn overview of uncertainty quantification techniques with application to oceanic and oil-spill simulationsen
dc.typeArticleen
dc.contributor.departmentComputer, Electrical and Mathematical Science and Engineering (CEMSE) Divisionen
dc.identifier.journalJournal of Geophysical Research: Oceansen
dc.eprint.versionPublisher's Version/PDFen
dc.contributor.institutionRosenstiel School of Marine and Atmospheric Science; University of Miami; Miami Florida USAen
dc.contributor.institutionTendral LLC; Miami Florida USAen
dc.contributor.institutionSandia National Laboratories; Albuquerque New Mexico USAen
dc.contributor.institutionDepartment of Mechanical Engineering and Material Science, Duke University; Durham North Carolina USAen
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)en
kaust.authorKnio, Omaren
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