Evaluation of a roughness length model and sea surface properties with data from the Baltic Sea

Carlsson, B; Papadimitrakis, Y; Rutgersson, A

dc.contributor.author	Carlsson, B	en
dc.contributor.author	Papadimitrakis, Y	en
dc.contributor.author	Rutgersson, A	en
dc.date.accessioned	2014-03-01T01:33:26Z
dc.date.available	2014-03-01T01:33:26Z
dc.date.issued	2010	en
dc.identifier.issn	0022-3670	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/20417
dc.subject	Atmospherendashocean interaction	en
dc.subject	Momentum	en
dc.subject	Oceanic	en
dc.subject	Sea/ocean surface	en
dc.subject	Waves	en
dc.subject	Wind waves	en
dc.subject.classification	Oceanography	en
dc.subject.other	Atmospherendashocean interaction	en
dc.subject.other	Baltic sea	en
dc.subject.other	Characteristics of the wave field	en
dc.subject.other	Long waves	en
dc.subject.other	Model performance	en
dc.subject.other	Oceanic	en
dc.subject.other	Roughness length	en
dc.subject.other	Sea spectra	en
dc.subject.other	Sea state	en
dc.subject.other	Sea surfaces	en
dc.subject.other	Sea/ocean surface	en
dc.subject.other	Swell ratio	en
dc.subject.other	Wavebreaking	en
dc.subject.other	Wavefields	en
dc.subject.other	Wind waves	en
dc.subject.other	Wind-driven waves	en
dc.subject.other	Ocean currents	en
dc.subject.other	Surface properties	en
dc.subject.other	Waves	en
dc.subject.other	Wind power	en
dc.subject.other	Surface roughness	en
dc.subject.other	air-sea interaction	en
dc.subject.other	modeling	en
dc.subject.other	sea surface	en
dc.subject.other	surface roughness	en
dc.subject.other	wave breaking	en
dc.subject.other	wave energy	en
dc.subject.other	wave field	en
dc.subject.other	wind wave	en
dc.subject.other	Atlantic Ocean	en
dc.subject.other	Baltic Sea	en
dc.title	Evaluation of a roughness length model and sea surface properties with data from the Baltic Sea	en
heal.type	journalArticle	en
heal.identifier.primary	10.1175/2010JPO4340.1	en
heal.identifier.secondary	http://dx.doi.org/10.1175/2010JPO4340.1	en
heal.language	English	en
heal.publicationDate	2010	en
heal.abstract	The exchange of momentum between the oceans and atmosphere is important for many atmospheric and oceanic processes and is mainly governed by the roughness of sea surface. The roughness can be expressed by a roughness length z0.Aroughness lengthmodel, based on the concept that z0 is determined by stochastic wave breaking, is presented. The model performance is evaluated using measurements from the Östergarnsholm site, in the Baltic Sea, and pertinent information from other recent investigations. The wave field and the roughness length variations are investigated during various sea state conditions dominated by wind-driven waves. It is found that several parameters, describing the characteristics of the wave field, are dependent on the amount of energy that long waves have relative to the energy of short, wind-driven waves of the sea spectrum (called the swell ratio). The impact of swell ratio on z0 can explain the discrepancies found in various results among relevant investigations. The roughness length model can well reproduce the observed roughness length. © 2010 American Meteorological Society.	en
heal.publisher	AMER METEOROLOGICAL SOC	en
heal.journalName	Journal of Physical Oceanography	en
dc.identifier.doi	10.1175/2010JPO4340.1	en
dc.identifier.isi	ISI:000282198900005	en
dc.identifier.volume	40	en
dc.identifier.issue	9	en
dc.identifier.spage	2007	en
dc.identifier.epage	2024	en