Photosynthetically active radiation (PAR; mmol photons m-2 s-1) was recorded with a LI-COR underwater spherical quantum sensor (LI-193) and datalogger (LI-1400) situated in the middle of the fiberglass tank during each of the stable isotope labeling experiments in June, August, and October.

Related References:

Spivak, AC and J Ossolinski. 2016. Limited effects of nutrient enrichment on bacterial carbon sources in salt marsh tidal creek sediments. Marine Ecology Progress Series. 544:107-130. 10.3354/meps11587

Methods & Sampling

Photosynthetically active radiation (PAR; umol photons m-2 s-1) was recorded with a LI-COR underwater spherical quantum sensor (LI-193) and datalogger (LI-1400) situated in the middle of the fiberglass tank.

Data Processing Description

BCO-DMO Data Processing Notes:

-reformatted column names to comply with BCO-DMO standards.
-added ISO_DateTime_UTC column
-replaced all blank cells with "nd"

Data Files

File
PAR_data.csv (Comma Separated Values (.csv), 95.36 KB) MD5:809cbbe2607b914eae0465938a1ae34f Primary data file for dataset ID 669741

More Information about this dataset

Funding Sources

Funding Source	Award Number
NSF Division of Ocean Sciences	OCE-1233678

Deployments

Deployment	Synonyms	Start Date	Platform	Investigator
Spivak_2012		2012-09-01	shoreside Massachusetts		data info

Instruments

Photosynthetically Available Radiation Sensor

Supplied Name: LI-COR underwater spherical quantum sensor (LI-193) and datalogger (LI-1400)

Supplied Description:

Situated in the middle of a fiberglass tank.

Instrument Type

Generic Name: Photosynthetically Available Radiation Sensor

Acronym: PAR sensor

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/122/

Generic Description:

A PAR sensor measures photosynthetically available (or active) radiation. The sensor measures photon flux density (photons per second per square meter) within the visible wavelength range (typically 400 to 700 nanometers). PAR gives an indication of the total energy available to plants for photosynthesis. This instrument name is used when specific type, make and model are not known.

Parameters

Date and time formats are described in python strftime() syntax.

Supplied Name	Supplied description	Supplied Units	Standard Name
date	Date of sampling; mm/dd/yy	unitless	date
time	Time of sampling; HH:MM	unitless	time
PAR_H2O	Photosynthetically active radiation in water tank	nmol photons m-2 s-1	PAR
PAR_daytime	Photosynthetically active radiation; sampled in daytime	nmol photons m-2 s-1	PAR
PAR_lnH2O	Natural log of photosynthetically active radiation in tank	log	PAR
PAR_lndaytime	Natural log of photosynthetically active radiation during daytime	log	PAR
ISO_DateTime_UTC	Date/Time (UTC) ISO formatted	unitless	ISO_DateTime_UTC

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