`unit:W-PER-M2-SR`

http://qudt.org/vocab/unit/W-PER-M2-SR

Types: qudt:DerivedUnit, qudt:Unit

Predicate	Object
`rdf:type`	`qudt:DerivedUnit` `qudt:Unit`
`dcterms:description`	\(\textit{Watt per steradian per square metre}\) is the SI unit of radiance (\(W·sr^{-1}·m^{-2}\)), while that of spectral radiance in frequency is the watt per steradian per square metre per hertz (\(W·sr^{-1}·m^{-2}·Hz^{-1}\)) and that of spectral radiance in wavelength is the watt per steradian per square metre, per metre (\(W·sr^{-1}·m^{-3}\)), commonly the watt per steradian per square metre per nanometre (\(W·sr^{-1}·m^{-2}·nm^{-1}\)). It has a dimension of \(ML^{-4}T^{-3}\) where \(M\) is mass, \(L\) is length, and \(T\) is time. This unit is the standard SI unit in this category."
`qudt:applicableSystem`	`sou:CGS` `sou:CGS-EMU` `sou:CGS-GAUSS` `sou:SI`
`qudt:conversionMultiplier`	1.0
`qudt:conversionMultiplierSN`	1.0E0
`qudt:definedUnitOfSystem`	`sou:SI`
`qudt:derivedCoherentUnitOfSystem`	`sou:SI`
`qudt:expression`	\(W/(m^2.sr)\)
`qudt:hasDimensionVector`	`qkdv:A0E0L0I0M1H0T-3D0`
`qudt:hasFactorUnit`
↳ `rdf:type`	`qudt:FactorUnit`
↳ `qudt:exponent`	-1
↳ `qudt:hasUnit`	`unit:SR`
`qudt:hasFactorUnit`
↳ `rdf:type`	`qudt:FactorUnit`
↳ `qudt:exponent`	1
↳ `qudt:hasUnit`	`unit:W`
`qudt:hasFactorUnit`
↳ `rdf:type`	`qudt:FactorUnit`
↳ `qudt:exponent`	-2
↳ `qudt:hasUnit`	`unit:M`
`qudt:hasQuantityKind`	`quantitykind:Radiance`
`qudt:iec61360Code`	“0112/2///62720#UAA315”
`qudt:informativeReference`	http://www.efunda.com/glossary/units/units--radiance--watt_per_square_meter_per_steradian.cfm https://cdd.iec.ch/cdd/iec62720/iec62720.nsf/Units/0112-2---62720%23UAA315 https://en.wikipedia.org/wiki/Radiance
`qudt:symbol`	“W/(m²·sr)”
`qudt:ucumCode`	“W.m-2.sr-1”^^`qudt:UCUMcs`
`qudt:uneceCommonCode`	“D58”
`qudt:wikidataMatch`	http://www.wikidata.org/entity/Q69429226
`rdfs:isDefinedBy`	http://qudt.org/3.1.11/vocab/unit
`rdfs:label`	Show 18 values “Vatio por Metro Cuadrado Estereorradián”@es “Wat na Metr Kwadratowy Steradian”@pl “Watt na Kvadratni Meter Steradian”@sl “Watt na Čtvereční Metr Steradián”@cs “Watt par Mètre Carré Stéradian”@fr “Watt pe Metru Pătrat Steradian”@ro “Watt per Meter Persegi Steradian”@ms “Watt per Metrekare Steradyan”@tr “Watt per Metro Quadrato Steradiante”@it “Watt per Square Meter Steradian”@en-US “Watt per Square Metre Steradian” “Watt per Square Metre Steradian”@en “Watt por Metro Quadrado Esterradiano”@pt “Watt pro Quadratmeter Steradiant”@de “Wattium per Metrum Quadratum Steradian”@la “Βατ ανά Τετραγωνικό Μέτρο Στερακτίνιο”@el “Ват на Квадратен Метър Стерадиан”@bg “Ватт на Квадратный Метр Стерадиан”@ru

Generated 2026-02-23T17:46:05.117-05:00