This HTML5 document contains 23 embedded RDF statements represented using HTML+Microdata notation.

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Namespace Prefixes

Prefix	IRI
n13	http://vocab.nerc.ac.uk/collection/P02/current/WVST/
dcterms	http://purl.org/dc/terms/
n10	http://vocab.nerc.ac.uk/collection/P06/current/UTBB/
dc	http://purl.org/dc/elements/1.1/
n7	http://vocab.nerc.ac.uk/collection/P04/current/G976/
n9	http://vocab.nerc.ac.uk/collection/P04/current/G970/
n11	http://vocab.nerc.ac.uk/collection/P64/current/G976/
skos	http://www.w3.org/2004/02/skos/core#
n2	http://vocab.nerc.ac.uk/collection/P07/current/CFV8N71/
void	http://rdfs.org/ns/void#
n14	http://vocab.nerc.ac.uk/collection/P64/current/G970/
n16	http://vocab.nerc.ac.uk/collection/P07/current/CFV8N71/1/
rdf	http://www.w3.org/1999/02/22-rdf-syntax-ns#
n18	http://vocab.nerc.ac.uk/.well-known/
owl	http://www.w3.org/2002/07/owl#
xsdh	http://www.w3.org/2001/XMLSchema#
n6	http://purl.org/pav/
n5	http://vocab.nerc.ac.uk/standard_name/sea_surface_swell_wave_mean_period_from_variance_spectral_density_inverse_frequency_moment/
n15	http://mmisw.org/ont/cf/parameter/

Statements

Subject Item

n2:

rdf:type

skos:Concept

owl:versionInfo

1

owl:sameAs

n5: n15:sea_surface_swell_wave_mean_period_from_variance_spectral_density_inverse_frequency_moment

skos:broader

n7: n9: n11: n13: n14:

skos:prefLabel

sea_surface_swell_wave_mean_period_from_variance_spectral_density_inverse_frequency_moment

dcterms:identifier

SDN:P07::CFV8N71

dc:identifier

SDN:P07::CFV8N71

dcterms:date

2008-04-15 14:00:00.0

skos:definition

The swell wave directional spectrum can be written as a five dimensional function S(t,x,y,f,theta) where t is time, x and y are horizontal coordinates (such as longitude and latitude), f is frequency and theta is direction. S can be integrated over direction to give S1= integral(S dtheta). Frequency moments, M(n) of S1 can then be calculated as follows: M(n) = integral(S1 f^n df), where f^n is f to the power of n. The inverse wave period, T(m-1), is calculated as the ratio M(-1)/M(0).

skos:notation

SDN:P07::CFV8N71

skos:altLabel

owl:deprecated

false

skos:note

accepted

void:inDataset

n18:void

skos:related

n10:

n6:authoredOn

2008-04-15 14:00:00.0

n6:hasCurrentVersion

n16:

n6:version

1