Dataset: PAR
Deployment: TT049

Photosynthetically Available Radiation (PAR)

Principal Investigator:

John F. Marra (Lamont-Doherty Earth Observatory, LDEO)

BCO-DMO Data Manager:

Cynthia L. Chandler (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Project:

U.S. JGOFS Arabian Sea (Arabian Sea)

Version:

April 12, 2002

Deployment Synonyms:

TTN049, TN049, TTN-049

Version Date:

2002-04-12

Data URL:

https://www.bco-dmo.org/dataset-deployment/450637/data

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Description

Photosynthetically Available Radiation (PAR)

Methods & Sampling

Dataset acquisition description

See Platform deployments for cruise specific documentation

Deployment-specific acquisition description

   PI:              John Marra
   of:              Lamont-Doherty Earth Observatory
   dataset:         Photosynthetically available radiation
   dates:           July 21, 1995 to August 11, 1995
   location:        N: 19.1976  S: 9.9964  W: 57.3014  E: 67.1711
   project/cruise:  Arabian Sea/TTN-049 - Process Cruise 4 (Middle SW Monsoon)
   ship:            Thomas Thompson
 
   Methods reported in:
   J. Marra, C. Trees, R.R. Bidigare and R.T. Barber,
   Pigment absorption and quantum yields in the Arabian Sea,
   Deep-Sea Res. II 47, 1279-1299

Data Processing Description

Dataset Processing Description

More information about this dataset deployment

Funding

Award Number	Funding Source
unknown Arabian Sea NSF	National Science Foundation
unknown Arabian Sea ONR	Office of Naval Research

Instruments

Photosynthetically Available Radiation Sensor

Supplied Description:

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

Supplied Name	Supplied description	Supplied Units	Standard Name
cruise_id	cruise designation		no_bcodmo_term
event	event number, from event log		event
sta	station number, from event log		no_bcodmo_term
sta_std	Arabian Sea standard station identifier		no_bcodmo_term
lat_n	latitude (minus = South)	decimal degrees	no_bcodmo_term
lon_n	longitude (minus = West)	decimal degrees	no_bcodmo_term
Epar	photosynthetically available radiation	mol photons/m2/day	no_bcodmo_term
Zpar	depth at which measurement taken	meters	depth

Database

Contribute Data

Dataset: PAR
Deployment: TT049

Dataset acquisition description

Deployment-specific acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: PARDeployment: TT049

Dataset acquisition description

Deployment-specific acquisition description

Dataset Processing Description

Dataset: PAR
Deployment: TT049