Parameter: corrected photosynthetically active radiation

Short Description: CPAR

Short Name: CPAR

Official Name: corrected photosynthetically active radiation

External Identifier: skos:closeMatch: http://purl.dataone.org/odo/ECSO_00001578

Description

CPAR is corrected photosynthetically active radiation or corrected irradiance. CPAR is often calculated as part of SeaBird's CTD processing software, which calculates CPAR (as a percent) using the following equation:

Corrected Irradiance [CPAR] = 100 * ratio multiplier * underwater PAR / surface PAR

(Ratio multiplier = scaling factor used for comparing light fields of disparate intensity, input in .con or .xmlcon file entry for surface PAR sensor; Underwater PAR = underwater PAR data; Surface PAR = surface PAR data)

[Above equation obtained from the Seasoft V2: SBE Data Processing User's Manual Software Release 7.26.8 and later]

Parameter Occurences in Datasets (1)

Dataset	PI-Supplied Description	PI-Supplied Name
CTD profile casts collected on the RVIB Nathaniel B. Palmer cruise NBP1201 in the Ross Sea from December 2011 to February 2012	CPAR/Corrected Irradiance (%)	cpar