{"refrec":{"BRefID":211130,"RR":"Carriere, O.; Hermand, J.P.; Le Gac, J.C.; Rixen, M. (2009). Full-field tomography and Kalman tracking of the range-dependent sound speed field in a coastal water environment. J. Mar. Syst. 78: S382-S392. https://dx.doi.org/10.1016/j.jmarsys.2009.01.036","BEntID":203052,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":1,"RefStringPartII":". J. Mar. Syst. 78: S382-S392. https://dx.doi.org/10.1016/j.jmarsys.2009.01.036","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Carriere, O.; Hermand, J.P.; Le Gac, J.C.; Rixen, M.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Carriere, O. et al.","Englishabstract":"The monitoring, assessment and prediction of dynamic processes in shallow water constitute an attractive challenge. The availability of targeted observations enable high-resolution ocean forecasting to develop the 4D environmental picture. In particular, range-resolving acoustic tomography data constitute an effective way to reduce the non-uniform distribution and sparsity of standard hydrographic observations. In this paper a Kalman filtering scheme is investigated for tracking the time variations of a range-dependent sound-speed field in a vertical slice of a shallow water environment from full-field acoustic data and a propagation model taking into account the acoustic properties of the seafloor and subseafloor. The basic measurement setup for each radial of a tomography system consists of a broadband, multifrequency sound source and a vertical receiver array spanning most of the water column. The state variables represent the main features of the sound-speed field in a low dimensional parameterization scheme using empirical orthogonal functions. To test the algorithm acoustic data are synthesized from ocean model predictions obtained in support of the MREA/BP07 experiment southeast of the island of Elba, Italy. Bottom geoacoustic parameters obtained from previous acoustic inversion experiments are input to a normal mode propagation model as a background dataset. Additional data such as sea-surface temperature data from satellite or in situ hydrographic observations provide a priori approximate information about the range dependency of the subsurface structure and an estimation of the sea-surface sound speed. The evolution of the entire sound-speed field in the vertical slice is then sequentially estimated by the inversion processor. The results show that the daily space and time variations of the simulated sound-speed field can be effectively tracked with an extended Kalman filter. The depth-integrated sound-speed error (RMS) remains lower than 0.3 m/s (0.09°C) when the benchmark environment is completely determined in the parameter space and lower than 0.7 m/s (0.22°C)for an approximate environment parameterization.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Full-field tomography and Kalman tracking of the range-dependent sound speed field in a coastal water environment","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2024-12-10 01:33:17.368041","timezone_type":1,"timezone":"+01:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"Data assimilation; Shallow water; Kalman filter; Acoustic inversion","OtherDescriptors":null,"Notes":null,"AnaPub":2009,"MonPub":null,"DateUpdate":"2018-08-16","DateCreate":"2011-12-22","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000271872700031","VABBcode":null,"OpenAcc":0,"DOI":"10.1016/j.jmarsys.2009.01.036"},"refs":null,"anarec":{"AnaID":211130,"PubliDate":2009,"Pagination":"S382-S392","XtraPublOfAnaID":null,"ISBN":null,"Volume":"78","Issue":null,"BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":43079,"SerRR":"Journal of Marine Systems. Elsevier: Tokyo; Oxford; New York; Amsterdam. ISSN 0924-7963; e-ISSN 1879-1573","StandardTitleSer":"Journal of Marine Systems","ISSN":"0924-7963","AbbrevSer":"J. Mar. Syst.","StandardTitleMon":null,"StartPage":null,"Pages":null,"ToPubliDate":null,"BRefBibLvlCode":"S","SerNotes":null},"monrec":null,"serrec":null,"relations":null,"relationsRev":null,"addrec":null,"othpubs":null,"ownerships":null,"authors":[{"AutName":"Carriere","Firstname":null,"Initials":"O.","Affiliation":"Univ Libre Bruxelles, Environm Hydroacoust Lab, OPERA Acoust, Brussels, Belgium.","Discriminator":null,"CorporateFlag":0,"BEntID":203052,"AutID":139859,"OrderNr":1,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":"EHL","InsFSN":"Université Libre de Bruxelles; Faculté des Sciences Appliquées; Laboratories of Image, Signal processing and Acoustics; Acoustics and Environmental Hydroacoustics Lab","ORCID":null,"PersID":27213,"InsID":11932},{"AutName":"Hermand","Firstname":null,"Initials":"J.P.","Affiliation":"Univ Libre Bruxelles, Environm Hydroacoust Lab, OPERA Acoust, Brussels, Belgium.","Discriminator":null,"CorporateFlag":0,"BEntID":203052,"AutID":139860,"OrderNr":2,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":"EHL","InsFSN":"Université Libre de Bruxelles; Faculté des Sciences Appliquées; Laboratories of Image, Signal processing and Acoustics; Acoustics and Environmental Hydroacoustics Lab","ORCID":"0000-0001-9418-0513","PersID":27192,"InsID":11932},{"AutName":"Le Gac","Firstname":null,"Initials":"J.C.","Affiliation":"NATO Undersea Res Ctr, La Spezia, Italy.","Discriminator":null,"CorporateFlag":0,"BEntID":203052,"AutID":139861,"OrderNr":3,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":null,"ORCID":null,"PersID":null,"InsID":null},{"AutName":"Rixen","Firstname":null,"Initials":"M.","Affiliation":"NATO Undersea Res Ctr, La Spezia, Italy.","Discriminator":null,"CorporateFlag":0,"BEntID":203052,"AutID":139862,"OrderNr":4,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":null,"ORCID":null,"PersID":null,"InsID":null}],"mapdetails":null,"datasets":null,"monographs":null,"monparts":null,"serparts":null,"BEntOpen":null,"BEntPrivate":null,"availability":[{"BInstID":317722,"LibID":36,"BRefID":211130,"EmbargoDate":null,"FullEmbargoDate":null,"PhysMedID":16,"hasOCRd":null,"ShelfLocCode":"317722","RFID":null,"PaidValue":null,"Medium":"Server","Description":"Interne VLIZ documenten","Acronym":"VLIZ","Library":"Vlaams Instituut voor de Zee","DutchTerm":"Non-open access","URL":null,"ClassifID":228,"Classification":"Non-open access","ReqLink":1,"ClassifTypID":3,"URLLocation":"https://www.vliz.be/imisdocs/publications/","SubDir":1,"InternalReq":1,"LoggedInReq":1,"Disclaimer":"Disclaimer_VLIZ_Intern","DutchDisclaimer":"
Deze publicatie is enkel beschikbaar voor persoonlijk gebruik binnen de Innovocean site en mag op geen enkele manier verder worden verspreid.