This HTML5 document contains 18 embedded RDF statements represented using HTML+Microdata notation.

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Namespace Prefixes

PrefixIRI
n8http://vocab.nerc.ac.uk/collection/P07/current/05YLQ0LQ/1/
dctermshttp://purl.org/dc/terms/
n12http://vocab.nerc.ac.uk/standard_name/sea_surface_wave_mean_wavelength_from_variance_spectral_density_inverse_wavenumber_moment/
n5http://vocab.nerc.ac.uk/collection/P06/current/ULAA/
n2http://vocab.nerc.ac.uk/collection/P07/current/05YLQ0LQ/
dchttp://purl.org/dc/elements/1.1/
skoshttp://www.w3.org/2004/02/skos/core#
voidhttp://rdfs.org/ns/void#
rdfhttp://www.w3.org/1999/02/22-rdf-syntax-ns#
n11http://vocab.nerc.ac.uk/.well-known/
owlhttp://www.w3.org/2002/07/owl#
xsdhhttp://www.w3.org/2001/XMLSchema#
n7http://purl.org/pav/
n9http://mmisw.org/ont/cf/parameter/

Statements

Subject Item
n2:
rdf:type
skos:Concept
owl:versionInfo
1
owl:sameAs
n9:sea_surface_wave_mean_wavelength_from_variance_spectral_density_inverse_wavenumber_moment n12:
skos:prefLabel
sea_surface_wave_mean_wavelength_from_variance_spectral_density_inverse_wavenumber_moment
dcterms:identifier
SDN:P07::05YLQ0LQ
dc:identifier
SDN:P07::05YLQ0LQ
dcterms:date
2023-02-06 17:17:13.0
skos:definition
The wave directional spectrum can be written as a five dimensional function S(t,x,y,k,theta) where t is time, x and y are horizontal coordinates (such as longitude and latitude), k is wavenumber and theta is direction. S has the standard name sea_surface_wave_directional_variance_spectral_density. S can be integrated over direction to give S1= integral(S dtheta) and this quantity has the standard name sea_surface_wave_variance_spectral_density. Wavenumber is the number of oscillations of a wave per unit distance. Wavenumber moments, M(n) of S1 can then be calculated as follows: M(n) = integral(S1 k^n dk), where k^n is k to the power of n. The inverse wave wavenumber, k(m-1), is calculated as the ratio M(-1)/M(0). The wavelength is the horizontal distance between repeated features on the waveform such as crests, troughs or upward passes through the mean level.
skos:notation
SDN:P07::05YLQ0LQ
skos:altLabel
owl:deprecated
false
skos:note
accepted
void:inDataset
n11:void
skos:related
n5:
n7:authoredOn
2023-02-06 17:17:13.0
n7:hasCurrentVersion
n8:
n7:version
1