Dataset: longtrack
Deployment: AII-119-4

Longtrack near-surface observations

Principal Investigator:

William Broenkow (Moss Landing Marine Laboratories, MLML)

BCO-DMO Data Manager:

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

Project:

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

Version:

April 19, 1996

Deployment Synonyms:

NABE

Version Date:

1996-04-19

Data URL:

https://www.bco-dmo.org/dataset-deployment/450767/data

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Description

Longtrack near-surface observations

Methods & Sampling

Dataset acquisition description

 
  PI:              William Broenkow
  of:              Moss Landing Marine Laboratories
  dataset:         longtrack near-surface observations, Moss Landing
  dates:           April 18, 1989 to June 07, 1989
  location:        N: 63.675  S: 38.667  W: -24.468  E: -17.642
  project/cruise:  North Atlantic Bloom Experiment cruises
 
  Ref:  JGOFS North Atlantic Bloom long track and vertical profiling results.
  	W.W. Broeknow, R.E. Reaves and M.A. Yarbrough  MLML Tech Pub 90-1

Deployment-specific acquisition description

 
  PI:              William Broenkow
  of:              Moss Landing Marine Laboratories
  dataset:         longtrack near-surface observations, Moss Landing
  dates:           April 18, 1989 to June 07, 1989
  location:        N: 63.675  S: 38.667  W: -24.468  E: -17.642
  project/cruise:  North Atlantic Bloom Experiment/Atlantis II 119, leg 5
  ship:            Atlantis II
  
  Note: Flow through system operated with reduced flow.  
        Many start-up problems were encountered.
  	Fluorometer scales change frequently, not logged properly.
  	Heating in flow-through plumbing is evident in temperature
           - error up to 1.5 C.
  	Salinity agrees with CTD profiles; precision +/- 0.05 PSU.
 
  Ref:  JGOFS North Atlantic Bloom long track and vertical profiling results.
  	W.W. Broeknow, R.E. Reaves and M.A. Yarbrough  MLML Tech Pub 90-1

Data Processing Description

Dataset Processing Description

More information about this dataset deployment

Funding

Award Number	Funding Source
unknown NABE NSF	National Science Foundation

Instruments

Fluorometer

Supplied Description:

Instrument Type

Generic Name: Fluorometer

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/113/

Generic Description:

A fluorometer or fluorimeter is a device used to measure parameters of fluorescence: its intensity and wavelength distribution of emission spectrum after excitation by a certain spectrum of light. The instrument is designed to measure the amount of stimulated electromagnetic radiation produced by pulses of electromagnetic radiation emitted into a water sample or in situ.

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

Supplied Name	Supplied description	Supplied Units	Standard Name
year	year as YYYY	dimensionless	year
cruise	cruise designation	dimensionless	no_bcodmo_term
leg	leg of cruise (4 or 5)	dimensionless	no_bcodmo_term
lat	Latitude	decimal degrees	lat
lon	Longitude	decimal degrees	lon
date	Date	yyyymmdd	no_bcodmo_term
time	Time of day	GMT decimal hours	no_bcodmo_term
yrday	Day of Year, 1989, assigned by U.S.JGOFS DMO, Jan 1 noon = 1.5	decimal day of year	no_bcodmo_term
sal	Salinity	PSU	sal
temp	Temperature	degrees C	temp
fluor	Rescaled Fluorescence 685 nm	approx. mg/m^3 chlorophyll	fluor
par_Ei	Incident PAR 400-700 nm Irradiance	umole/sec/m^2	no_bcodmo_term
par_Eo	Incubator PAR Scalar Irradiance	umole/sec/m^2	no_bcodmo_term

Database

Contribute Data

Dataset: longtrack
Deployment: AII-119-4

Dataset acquisition description

Deployment-specific acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: longtrackDeployment: AII-119-4

Dataset acquisition description

Deployment-specific acquisition description

Dataset Processing Description

Dataset: longtrack
Deployment: AII-119-4