Dataset: longtrack

Name: Longtrack near-surface observations from R/V Atlantis II, R/V Endeavor cruises AII-119-4, AII-119-5, EN198 in the North Atlantic (U.S. JGOFS NABE project)
Published: 1996-04-19
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:

final

Version Date:

1996-04-19

Validated:

Yes

Current State:

Final no updates expected

Longtrack near-surface observations from R/V Atlantis II, R/V Endeavor cruises AII-119-4, AII-119-5, EN198 in the North Atlantic (U.S. JGOFS NABE project)

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Description

Longtrack near-surface observations

Methods & Sampling

 
  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

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

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

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

Supplied Name	Supplied description	Supplied Units	Standard Name
fluor	Rescaled Fluorescence 685 nm	approx. mg/m^3 chlorophyll	fluor
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
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
cruise	cruise designation	dimensionless	no_bcodmo_term
leg	leg of cruise (4 or 5)	dimensionless	no_bcodmo_term
sal	Salinity	PSU	sal
temp	Temperature	degrees C	temp
year	year as YYYY	dimensionless	year

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Dataset: longtrack