Parameter: PAR_photons

Short Description: PAR_photons
Short Name: PAR_photons
Official Name: PAR_photons
Units: micromols photons/meter^2/second; OR microEinsteins/meter^2/second
No Data Value: nd
External Identifier: skos:closeMatch: http://vocab.nerc.ac.uk/collection/P01/current/PFDPAR01/

Description

Spectrally-integrated downwelling planar irradiance, in PAR units (400 - 700nm)

DatasetPI-Supplied DescriptionPI-Supplied Name
Kd averages calculated by month from studies conducted in St. John, US Virgin Islands from 2014-2017.Kd values published in studies Kd
Kd averages calculated by month from studies conducted in St. John, US Virgin Islands from 2014-2017.Kd mean from values published in studies Kd_Mean
Kd averages calculated by month from studies conducted in St. John, US Virgin Islands from 2014-2017.Kd standard error from values published in studies Kd_SE
Measurements of light intensity (PAR) underwater (19 m depth) in St. John, US Virgin Islands from 2014-2017.Underwater light; averaged within burst that the sensor was on Burst_average
Measurements of light intensity (PAR) underwater (19 m depth) in St. John, US Virgin Islands from 2014-2017.Kd PAR calculated according to equations and assumptions in paper (DOI: 10.1007/s00338-018-1721-y). Values at night and late/early in the day (between about 17:00 and 07:00 the next day) are unlikely to be meaninghful due to the low values recorded. Kd_PAR
Measurements of light intensity (PAR) underwater (19 m depth) in St. John, US Virgin Islands from 2014-2017.Mean Kd-PAR over noon hours using 2-3 records around noon. Noon_Kd
Measurements of light intensity (PAR) underwater (19 m depth) in St. John, US Virgin Islands from 2014-2017.Surface light Surface
Nutrients and pigments from HPLC analysis for fire ash deposition to coastal ocean study, southern California, December 2017Photosynthetically Available Radiation Par
Clones of Prochlorococcus MIT9312 mixed with clonal isolates of the heterotrophic "helper" bacterium Alteromonas EZ55 (P-ExpEv project)light level at which sample was collected light_level
Measurements of rainfall and surface light intensity (PAR) in St. John, US Virgin Islands from 2014-2017.Surface light mean SurfaceLight_Mean
Measurements of rainfall and surface light intensity (PAR) in St. John, US Virgin Islands from 2014-2017.Surface light mean standard error SurfaceLight_SE
Light data collected from loggers deployed at the Thalassia Experimental Network (TEN) sites in the Western Atlantic from 2018-2019Light reading converted from raw light data. calibrated_light_value
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