Dataset: CTD - Discrete Samples

Name: CTD - Discrete Samples from R/V Melville, R/V Roger Revelle cruises MV1101, RR1202 in the Southern Ocean (30-60S); 2011-2012 (Great Calcite Belt project)
Published: 2015-06-10
Keywords: oceans

Cite This Dataset

Spatial Extent: N:-35.4013 E:113.7 S:-60.016 W:-61.0505

Project:

The Great Southern Coccolithophore Belt (Great Calcite Belt)

Principal Investigator:

William M. Balch (Bigelow Laboratory for Ocean Sciences)

Contact:

William M. Balch (Bigelow Laboratory for Ocean Sciences)

BCO-DMO Data Manager:

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

Version:

10 June 2015

Version Date:

2015-06-10

Current State:

Final no updates expected

CTD - Discrete Samples from R/V Melville, R/V Roger Revelle cruises MV1101, RR1202 in the Southern Ocean (30-60S); 2011-2012 (Great Calcite Belt project)

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Description

Discrete Samples from CTD Casts

Nutrients, Chlorophyll, Phaeopigments, POC, PIC, PON and cell count data from CTD casts

Methods & Sampling

Nutrients were processed by Scripps Science team, using their standard protocols. “Top bottle” chlorophylls were done in triplicate; deeper bottles were done as single samples. Samples with a Niskin number of -999 were samples taken from the ships non-contaminated seawater system, but were done while on station for casts where no bottles were tripped.

Data Processing Description

BCO-DMO Processing Notes
- Generated from original files "MV1101 discrete samples.csv" and "RR1202 discrete samples.csv" contributed by Bruce Bowler
- Parameter names modified to conform to BCO-DMO convention
- ISO formatted date/time added
- data reported to number of decimal places as appropriate

Data Files

File
CTD_DISCRETE_SAMPLES.csv (Comma Separated Values (.csv), 300.51 KB) MD5:3a196dc76d1a03ee0114ef2e5ec0e8da Primary data file for dataset ID 560357

More Information about this dataset

Funding Sources

Funding Source	Award Number
NSF Division of Ocean Sciences	OCE-0961660

Deployments

Deployment	Synonyms	Start Date	Platform	Investigator
MV1101	GB1	2011-01-11	R/V Melville	William M. Balch (Chief Scientist)	data info
RR1202	GB2	2012-02-18	R/V Roger Revelle	William M. Balch (Chief Scientist)	data info

Instruments

CTD Sea-Bird SBE 911plus

Supplied Name: CTD Sea-Bird 911

Supplied Description:

Instrument Type

Generic Name: CTD Sea-Bird SBE 911plus

Acronym: CTD SBE 911plus

Community Identifier: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0058/

Generic Description:

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

Niskin bottle

Supplied Name: Niskin Bottle

Supplied Description:

Instrument Type

Generic Name: Niskin bottle

Community Identifier: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0412/

Generic Description:

A Niskin bottle (a next generation water sampler based on the Nansen bottle) is a cylindrical, non-metallic water collection device with stoppers at both ends. The bottles can be attached individually on a hydrowire or deployed in 12, 24, or 36 bottle Rosette systems mounted on a frame and combined with a CTD. Niskin bottles are used to collect discrete water samples for a range of measurements including pigments, nutrients, plankton, etc.

Parameters

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

Supplied Name	Supplied description	Supplied Units	Standard Name
CTD_Transmittance	CTD Transmittance	percentage	trans
time	time	HHMMSS	time
Station	Station Number	dimensionless	station
Bsi	Bsi	umol L^-1	Si_bio
SIL	SIL	umol L^-1	Silicate
PON	PON	ug L^-1	PON
POC	POC	ug L^-1	POC
PO4	PO4	umol L^-1	PO4
PIC	PIC	ug L^-1	PIC
Avg_Corr_Phaeo	Avg Corr Phaeo	ug L^-1	phaeo
CTD_PAR	CTD PAR	uEinstein/m2/Sec	PAR
Dissolved_O2	Dissolved O2	mL L^-1	O2
CTD_Oxygen	CTD Oxygen	mL L^-1	O2
Cell_plus_Agg	the number of birefringent plated cells and aggregates observed with optical microscopy	mL^-1	no_bcodmo_term
Quadruple_Lith	the number of whole birefringent plates from coccolithophorids observed with optical microscopy	ML^-1	no_bcodmo_term
NO3	NO3	umol L^-1	NO3
NO2	NO2	umol L^-1	NO2
NH4	NH4	umol L^-1	NH4
Longitude	Station longitude (West is negative)	decimal degrees	lon
Latitude	Station latitude (South is negative)	decimal degrees	lat
ISO_DateTime_UTC	ISO Date Time UTC	iso_format	ISO_DateTime_UTC
CTD_Fluorescence	CTD Fluorescence	volts	flvolt
Depth	Sample depth	meters	depth
date	date	YYYYMMDD	date
CruiseId	Official UNOLS cruise id	text	cruiseid
Avg_Corr_Chl_a_plus_Phaeo	Avg Corr Chl a + Phaeo	ug L^-1	Chl_a_plus_Phaeo
Avg_Corr_Chl_a	Avg Corr Chl a	ug L^-1	chl_a
cast	Cast Number	integer	cast
Niskin_No	Niskin Bottle Number Samples with a Niskin number of -999 were samples taken from the ships non-contaminated seawater system.	integer	bottle
CTD_Beam_C_Attenuation	CTD Beam C Attenuation	M^-1	beam_c

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Dataset: CTD - Discrete Samples