Dataset: PAR

Name: Integrated daily incident PAR from R/V Endeavor, R/V Atlantis II cruises EN198, AII-119-4, AII-119-5 in the North Atlantic in 1989 (U.S. JGOFS NABE project)
Published: 1995-12-04
Keywords: oceans

View Data: to access data, check the deployments below

Cite This Dataset

Project:

U.S. JGOFS North Atlantic Bloom Experiment (NABE)

Program:

U.S. Joint Global Ocean Flux Study (U.S. JGOFS)

Principal Investigator:

William Broenkow (Moss Landing Marine Laboratories, MLML)

BCO-DMO Data Manager:

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

Version:

December 4, 1995

Version Date:

1995-12-04

Validated:

Yes

Current State:

Final no updates expected

Integrated daily incident PAR from R/V Endeavor, R/V Atlantis II cruises EN198, AII-119-4, AII-119-5 in the North Atlantic in 1989 (U.S. JGOFS NABE project)

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Description

Integrated daily incident PAR (400-700 nm)

Methods & Sampling

  PI:              William Broenkow
  of:              Moss Landing Marine Laboratories
  dataset:         MLML - Integrated daily incident PAR (400-700 nm)
  dates:           April 25, 1989 to June 7, 1989
  location:        N: 60.7483  S: 41.066  W: -26.0615  E: -17.67
  project/cruise:  North Atlantic Bloom Experiment cruises
  ship:            Atlantis II


  Note:   "Clear sky irradiance" (Frouin et al 1989, JGR) 
             is given at nominal stations
          (47N 21W and 59.5N 21W) for ozone 0.3, water 2.5.
          PAR irradiance was measured by LiCor Type LI-190SA cosine sensor.
          Scalar (spherical) PAR was measured by LiCor type LI-193-SB 
             for MLML incubator.

  Ref:    JGOFS North Atlantic Bloom long track and vertical profiling results.
          W.W. Broenkow, R.E. Reaves and M.A. Yarbrough  MLML Tech Pub 90-1
          Recorded: 14:16:19  16-FEB-90

More Information about this dataset

Funding Sources

Funding Source	Award Number
National Science Foundation	unknown NABE NSF

Deployments

Deployment	Synonyms	Start Date	Platform	Investigator
AII-119-4	NABE	1989-04-17	R/V Atlantis II	John F. Marra (Chief Scientist)	data info
AII-119-5		1989-05-15	R/V Atlantis II	Hugh W. Ducklow (Chief Scientist)	data info
EN198	END-198	1989-06-28	R/V Endeavor	William Broenkow (Chief Scientist)	data info

Instruments

LI-COR LI-193 PAR Sensor

Supplied Name: LiCor Underwater Spectrial Quantum Sensor

Supplied Description:

Instrument Type

Generic Name: LI-COR LI-193 PAR Sensor

Acronym: LI-COR LI-193 PAR

Community Identifier: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0458/

Generic Description:

The LI-193 Underwater Spherical Quantum Sensor uses a Silicon Photodiode and glass filters encased in a waterproof housing to measure PAR (in the 400 to 700 nm waveband) in aquatic environments. Typical output is in micromol s-1 m-2. The LI-193 Sensor gives an added dimension to underwater PAR measurements as it measures photon flux from all directions. This measurement is referred to as Photosynthetic Photon Flux Fluence Rate (PPFFR) or Quantum Scalar Irradiance. This is important, for example, when studying phytoplankton, which utilize radiation from all directions for photosynthesis. LI-COR began producing Spherical Quantum Sensors in 1979; serial numbers for the LI-193 begin with SPQA-XXXXX (licor.com).

Parameters

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

Supplied Name	Supplied description	Supplied Units	Standard Name
lat	latitude nearest to noon each day from event log, minus = south	decimal degrees	lat
lon	longitude nearest to noon each day from event log, minus = west	decimal degrees	lon
date	Date of Daily Integrated Irradiances	YYYYMMDD	no_bcodmo_term
day_ser	Serial day beginning Jan. 1, 1900		no_bcodmo_term
par_int	Integrated Incident PAR 400-700nm	moles/m^2	no_bcodmo_term
par_peak	Peak PAR 400-700nm Incident Irradiance	umole/sec/m^2	no_bcodmo_term
time_int	Total integrated time	hours	no_bcodmo_term
par_int_s	Integrated Spherical PAR 400-700nm	moles/m^2	no_bcodmo_term
par_peak_s	Peak Spherical PAR 400-700nm Irradiance	umole/sec/m^2	no_bcodmo_term
time_2_int	Total Time integrated	hours	no_bcodmo_term
par_daily	Daily Clear Sky PAR 400-700nm Irradiance	moles/m^2	no_bcodmo_term

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Dataset: PAR