{"refrec":{"BRefID":252928,"RR":"van Haren, H. (2015). A composite vertical current spectrum for strongly and weakly stratified seas and oceans. J. Mar. Res. 73(1-2): 33-48. dx.doi.org/10.1357/002224015815782670","BEntID":244742,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":null,"RefStringPartII":". J. Mar. Res. 73(1-2): 33-48. https://dx.doi.org/10.1357/002224015815782670","DocTypID":8,"DocType":"Journal article","MarineFlag":0,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"van Haren, H.","OrigTitleTranslFlag":0,"Authorstringtrunc":"van Haren, H.","Englishabstract":"An overall frequency (s) spectrum f w (s, N, fh ) is composed for vertical current (w) observations from ocean areas with different stratifications represented by large, 100 m scale buoyancy frequency N. The horizontal Coriolis parameter is denoted by fh . In the open Atlantic Ocean, the relatively strong horizontal layering in density supports the f w that is found in semiequilibrium under the degradation of the lowest internal wave mode. This f w is not constant with frequency; however, its variance increases between s = f and its peak near s = (0.5 ā 0.7) N >> f, where f denotes the local inertial frequency. In contrast, the f w spectra from the weakly stratified deep Mediterranean and from the shallow North Sea peak at ~ 1.1 f, except for a tidal peak in North Sea data, and fall off at a rate of sā1 for 1.1 f < s < Nm = 4fh , where Nm denotes maximum small-scale N. Background conditions are characterized by vertical instead of horizontal layering in density. Such spectra are best described by a nonequilibrium evolution of small-scale internal waves under a weak mean shear, which transfers variance to s Ė f. This f w ~ Np , p > 0, is contrary to the existing model of open-ocean equilibrium spectra that decrease with N (p < 0). A smooth transition between the two regimes is found to coincide with top-peak f w for N/fh =","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"A composite vertical current spectrum for strongly and weakly stratified seas and oceans","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2024-12-10 01:32:52.928458","timezone_type":1,"timezone":"+01:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"COMPOSITE OCEAN SPECTRUM; INTERNAL WAVES; MIXING EFFECTS; VERTICAL MOTIONS; WEAK AND STRONG STRATIFICATION","OtherDescriptors":null,"Notes":null,"AnaPub":2015,"MonPub":null,"DateUpdate":"2016-02-16","DateCreate":"2016-02-11","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000368338200003","VABBcode":null,"OpenAcc":0,"DOI":"10.1357/002224015815782670"},"refs":null,"anarec":{"AnaID":252928,"PubliDate":2015,"Pagination":"33-48","XtraPublOfAnaID":null,"ISBN":null,"Volume":"73","Issue":"1-2","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":43078,"SerRR":"Journal of Marine Research. 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