Dataset: Light - summary

Name: Daily light levels, attenuation coefficients and critical depths from the R/V Tangaroa 61TG_3052 cruise in the Southern Ocean during 1999 (SOIREE project)
Published: 2010-02-04
Keywords: oceans

Cite This Dataset

Spatial Extent: N:-60.8913 E:140.67135 S:-61.14543 W:139.3717

Project:

Southern Ocean Iron Release Experiment (SOIREE)

Program:

Iron Synthesis (FeSynth)

Principal Investigator:

Mr Mark Gall (New Zealand National Institute of Water and Atmospheric Research, NIWA)

Co-Principal Investigator:

Philip W. Boyd (New Zealand National Institute of Water and Atmospheric Research, NIWA)

Contact:

Doug Mackie (University of Otago)

BCO-DMO Data Manager:

Stephen R. Gegg (Woods Hole Oceanographic Institution, WHOI)

Version:

04Feb2010

Version Date:

2010-02-04

Validated:

Yes

Current State:

Final no updates expected

Daily light levels, attenuation coefficients and critical depths from the R/V Tangaroa 61TG_3052 cruise in the Southern Ocean during 1999 (SOIREE project)

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Description

SOIREE Summary of daily light levels, attenuation coefficients and critical depths

Methods & Sampling

See SOIREE Preliminary Voyage Report

For more information refer to Gall et al (2001)
"Phytoplankton processes (Part 2): Rates of primary
production and factors controlling algal growth during the

Southern Ocean Iron RElease Experiment (SOIREE)".

Data Processing Description

See SOIREE Preliminary Voyage Report

BCO-DMO Processing Notes

Generated from original file Light_Summary.xls Tab: LightDataSummary
provided on the
Deep-Sea Research II 48 (2001) accompanying CD-Rom

BCO-DMO Edits

- parameter names modified to conform to BCO-DMO convention

- date reformatted to YYYYMMDD

- noontime lat/lon position inserted from ships track data to make these data mapable

Data Files

File
light_summary.csv (Comma Separated Values (.csv), 628 bytes) MD5:8968a2a19d40a7435568b611a72abbf3 Primary data file for dataset ID 2881

More Information about this dataset

Funding Sources

None available yet

Deployments

Deployment	Synonyms	Start Date	Platform	Investigator
61TG_3052	SOIREE	1999-01-31	R/V Tangaroa	Philip W. Boyd (Chief Scientist)	data info

Instruments

CTD Sea-Bird 911

Supplied Name: CTD Seabird 911

Supplied Description:

NIWA's Seabird 911plus CTD and related instrumentation

Instrument Type

Generic Name: CTD Sea-Bird 911

Acronym: CTD SBE 911

Community Identifier: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0035/

Generic Description:

The Sea-Bird SBE 911 is a type of CTD instrument package. The SBE 911 includes the SBE 9 Underwater Unit and the SBE 11 Deck Unit (for real-time readout using conductive wire) for deployment from a vessel. The combination of the SBE 9 and SBE 11 is called a SBE 911. The SBE 9 uses Sea-Bird's standard modular temperature and conductivity sensors (SBE 3 and SBE 4). The SBE 9 CTD can be configured with auxiliary sensors to measure other parameters including dissolved oxygen, pH, turbidity, fluorescence, light (PAR), light transmission, etc.). More information from Sea-Bird Electronics.

Parameters

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

Supplied Name	Supplied description	Supplied Units	Standard Name
PAR	Photosynthetically Active Radiation (PAR) -400-700 nm.	M/m^2/day	PAR
date	Date (GMT)	YYYYMMDD	date
Kpar	Light Attenuation Estimates Calculated from the beam attenuation relationship with CTDKo.	(tbd)	no_bcodmo_term
Ze	Defined as the 1% Light Level (Kirk, 1994).	(tbd)	no_bcodmo_term
Zc	Critical Light Depth The critical light depth was calculated from the equations outlined in Nelson & Smith (1991)	(tbd)	no_bcodmo_term
lat	latitude, negative denotes South	decimal degrees	lat
lon	longitude, negative denotes West	decimal degrees	lon

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Dataset: Light - summary