Dataset: SedimentTraps - Bulk Pumped Particles
Deployment: 61TG_3052

Sediment Traps - Bulk Pumped Particles

Principal Investigator:

Tom W. Trull (University of Tasmania, UTAS)

Contact:

Doug Mackie (University of Otago)

BCO-DMO Data Manager:

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

Project:

Southern Ocean Iron Release Experiment (SOIREE)

Current State:

Final no updates expected

Version:

20August2009

Deployment Synonyms:

SOIREE

Version Date:

2009-08-20

Data URL:

https://www.bco-dmo.org/dataset-deployment/451438/data

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Description

SOIREE Sediment Traps - Bulk Pumped Particles

Methods & Sampling

Dataset acquisition description

See SOIREE Preliminary Voyage Report

Comments preserved from the original file:

Blank GFF: (QMA blank - see notes below) 5.									
Notes:									
1. QMA blank (see SizeFractionatedPumpedParticles sheet) used for GFF until GFF blank measurement is complete									
2. Two samples were numbered 14 by mistake at sea  - heavily loaded filter was obviously from 10m depth - designated b.									
3. Blank Correction from GFF blanks 			n=11	PeakArea	13Cpdb			
in Part# D1100 tin cups (same as samples)		average	9.41		-25.83			
							stdev	1.27		0.6			
									
4. NBS22 Oil standard correction from 			n=51	n=51	n=51		n=25	n=25	n=25
76 standards run					NBS OIL	NBS OIL	NBS OIL		NBS OIL	NBS OIL	NBS OIL
in two sizes during same time period			1ul	1ul	1ul		2ul	2ul	2ul
as SOIREE samples using same column			VS	13C	13C		VS	13C	13C
PeakArea in Volt-seconds (VS)				undil	undil	undil,bc	undil	undil	undil,bc
average of 1ul and 2ul results			average	49.61	-29.69	-29.84		91.52	-29.77	-29.86
is -29.85, 0.15 lighter than 			stdev	18.72	0.2	0.22		44.04	0.19	0.18
NBS/NIST assigned value of -29.7			Blank corrections for NBS stds from EA tin cup part # D4019 					
correction made by adding 0.15 to SOIREE values					n=7	PeakArea	13Cpdb	
										average	1.24		-24.62	
										stdev	0.51		2.96	
									
Blank, Standard, Sample raw isotope data in file EA99_2.xls, available from Trull on request									
									
Trull results on 142mm GFF filters from hose pump, as reported in Trull and Armand, DSR-II paper									
all CHN analyses done on 2 syringepunches of the folded filter									
fraction analysed = 4xpuncharea/filterarea: 0.00276									
									
all 13C analyses done on 1 syringepunch of the folded filter									
fraction analysed = 2xpuncharea/filterarea: 0.00138

Data Processing Description

Dataset Processing Description

See SOIREE Preliminary Voyage Report

BCO-DMO Processing Notes

Generated from original file SOIREE_Export_final.xls, Tab: BulkPumpedParticles

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_UTC, time_UTC, lat, lon added from files SOIREE_Stations_CTDSampling and MasterStationList.xls

- 'nd' added to blank cells

- Made column header record one line

- Added 'T' to CTD cast for consistency with other spreadsheets

- Formatted Date (NZST) to YYYYMMDD

More information about this dataset deployment

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.

Sediment Trap

Supplied Description:

MULTI-trap dimensions:

Length (L, m): 0.58 Trap length with baffles inserted;

L without baffles: 0.525 m

AR without baffles: 7.50

Trap volume without baffles: 2.021 litres

Inside diameter (Di, m): 0.07

Outside diameter (Do, m): 0.08

Aspect ratio (AR): 8.29

Aspect ratio with salt (AR): 7.29 Basal brine added to a height of 1-trap diameter (7 cm)

Collection area (A, m2): 0.00385

Trap volume (V, m3): 0.00223

Trap volume (V, litres): 2.232

Baffle length (Lb, m): 0.08

Baffle diameter (Dib, m): 0.01

Baffle aspect ratio (ARb): 5.77

Instrument Type

Generic Name: Sediment Trap

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/33/

Generic Description:

Sediment traps are specially designed containers deployed in the water column for periods of time to collect particles from the water column falling toward the sea floor. In general a sediment trap has a jar at the bottom to collect the sample and a broad funnel-shaped opening at the top with baffles to keep out very large objects and help prevent the funnel from clogging. This designation is used when the specific type of sediment trap was not specified by the contributing investigator.

Parameters

Supplied Name	Supplied description	Supplied Units	Standard Name
Date_NZST	date NZST	YYYYMMDD	date_local
lon	longitude, negative denotes West	decimal degrees	lon
lat	latitude, negative denotes South	decimal degrees	lat
date_UTC	UTC Date	YYYYMMDD	date
time_UTC	UTC time	HHMM	time
depth	Sample depth	meters	depth
Filter_No	Filter Number	integer	no_bcodmo_term
Patch	Patch Location (In/Out)	Text	no_bcodmo_term
CTD_cast_sametime	CTD Station/Cast Id	Text	no_bcodmo_term
Volume_filtered	Volume filtered	(tbd)	vol_filt
C_measured	C measured	(tbd)	no_bcodmo_term
C_on_filter	C on filter	(tbd)	no_bcodmo_term
C_to_N_ratio	C/N Ratio	dimensionless	no_bcodmo_term
C_blank_corr	C blank corr	(tbd)	no_bcodmo_term
C_per_litre	C per litre	(tbd)	no_bcodmo_term
C13_org_measured	13Corg measured	(tbd)	no_bcodmo_term
C13_org_blnk_corr	13Corg blnk corr	(tbd)	no_bcodmo_term
C13_org_NBS22std	13Corg NBS22std	(tbd)	no_bcodmo_term

Database

Contribute Data

Dataset: SedimentTraps - Bulk Pumped Particles
Deployment: 61TG_3052

Dataset acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: SedimentTraps - Bulk Pumped ParticlesDeployment: 61TG_3052

Dataset acquisition description

Dataset Processing Description

Dataset: SedimentTraps - Bulk Pumped Particles
Deployment: 61TG_3052