Dataset: Niskin bottle samples
Deployment: WB0508

Niskin bottle and CTD data; nutrients, oxygen, DIC, POC, PON

Principal Investigator:

Nicholas Bates (Bermuda Biological Station for Research, BBSR)

BCO-DMO Data Manager:

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

Project:

Eddies Dynamics, Mixing, Export, and Species composition (EDDIES)

Version:

15 October 2007

Deployment Synonyms:

EDT4 2005 Transect 2

Version Date:

2007-10-15

Data URL:

https://www.bco-dmo.org/dataset-deployment/452318/data

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Description

 PI:              Nick Bates
 of:              Bermuda Biological Station for Research (BBSR)
 dataset:         Niskin bottle and CTD data; nutrients, oxygen, DIC, POC, PON
 platform:        R/V Weatherbird II
 
 Methodology: see Chapter 3: CTD & Related Measurements in U.S. JGOFS BATS  
    Method Manual Version 4 (1997).  Bermuda Atlantic Time-Series Study April 1997. 
    Anthony H. Knap, Anthony F. Michaels et al., 136 pp.
    (link to BATS Method Manual version 4 local copy)
 
 OCB DMO Note: Longitude changed to negative values indicating West;
    depth_n estimated, surface at 1 meter;  Niskin_id (90409##nn) split 
    into sta '##' and Nis bottle number 'nn'.  HPLC from original datafile 
    not included because newer HPLC pigment data are already in database; 
    all data are from primary sensors; event number is taken from cruise 
    event log, and DMO added bot numbers to support data integration
 
 PI note: All bottle fires included; most include sampling data. Level 
    of Detection (LOD) not imposed for nutrient data. Typical methodology 
    suggests LOD's of ~ 0.03 umol/kg for NO3+NO2 and SRP. No sample, 
    Missing or bad data set to nd. Fluometric analysis for chl_a and 
    Phaeo using 500ml sample were performed by BIOS BBOP lab.
    
    Analysis Note: files listing SiO4 data from the sample rerun:
    WB Silicate reruns

 
 Caution:  this data set is considered final, but it is unknown whether 
    the CTD data have had any post-cruise calibrations applied.

Methods & Sampling

Dataset acquisition description

Deployment-specific acquisition description

 PI:              Nick Bates 
 of:              Bermuda Biological Station for Research (BBSR)
 dataset:         Niskin bottle and CTD data; nutrients, oxygen, POC, PON
 dates:           18 August 2005 to 25 August 2005  (20050818-20050825) 
 location:        N: 30.182  S: 29.819  W: -69.410  E: -67.744 
 project/cruise:  EDDIES/WB0508 2005 Transect 2 (EDT4)
 platform:        R/V Weatherbird II
 
 Methodology: see Chapter 3: CTD & Related Measurements in U.S. JGOFS BATS  
    Method Manual Version 4 (1997).  Bermuda Atlantic Time-Series Study April 1997. 
    Anthony H. Knap, Anthony F. Michaels et al., 136 pp.
    (link to BATS Method Manual version 4 local copy)
 
 Change history: YYMMDD
    070222: downloaded original merged data from EDDIES data web site;
            /data/2005_data/wbII_x0506/bottle/x0506_botdata.txt
    070314: prepared for OCB database by Nancy Copley (OCB DMO)
    070315: added to database by Cyndy Chandler (OCB DMO)
    071015: Silicate (SiO4) data updated with values from select sample reruns
 
 OCB DMO Note: Longitude changed to negative values indicating West;
    depth_n estimated, surface at 1 meter;  Niskin_id (90508##nn) split 
    into cast and Nis bottle number.  HPLC from original datafile not
    included because newer HPLC pigment data are already in database.
    No DIC or Alkinity data provided yet for this cruise; event number
    and nominal max pressure are from cruise event log.
 
 PI note: All bottle fires included; most include sampling data. Level 
    of Detection (LOD) not imposed for nutrient data. Typical methodology 
    suggests LOD's of ~ 0.03 umol/kg for NO3+NO2 and SRP.  No sample, 
    Missing or bad data set to nd.
    
    Analysis Note: files listing SiO4 data from the sample rerun:
    WB Silicate reruns

Data Processing Description

Dataset Processing Description

More information about this dataset deployment

Funding

Award Number	Funding Source
unknown EDDIES NSF OCE	NSF Division of Ocean Sciences

Instruments

CTD Sea-Bird SBE 911plus

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

Supplied Name	Supplied description	Supplied Units	Standard Name
event	unique sampling event number from cruise event log	YYYYMMDDhhmm	event
date	start date of event (GMT)	YYYYMMDD	date
time	start time of event (GMT)	hhmm	time
lon	longitude, negative denotes West	decimal degrees	lon
lat	latitude, negative denotes South	decimal degrees	lat
sta	cast number for sampling event	dimensionless	sta
bot	Niskin bottle number	dimensionless	bot
Nis	Niskin bottle order number	dimensionless	bottle
Q_btl	bottle quality flag 1 = good, -1 = misfire, -2 = suspect leaker	signed integer	q_flag
press	pressure; from CTD	decibars	press
depth	depth, calculated from pressure	meters	depth
depth_n	depth, nominal bottle firing	meters	depth_n
temp	temperature; from CTD	degrees Celsius	temp
sal_CTD	salinity; from CTD	dimensionless	sal_ctd
sigma_t	sigma-T (density)	kilograms/meter^3	sigma_t
chla_fluor	fluorescence, from CTD profiler rescaled, units are numerically equivalent to chlorophyll-a concentrations	micrograms/liter	fluor_re
sal_bot	salinity from bottle sample	dimensionless	sal_bot
O2_umol_kg	oxygen; dissolved; from bottle	micromoles/kilogram	O2_umol_kg
DIC	dissolved inorganic carbon	micromoles C/kilogram	DIC
Alkalinity	total alkalinity	micromoles/kilogram	TALK
NO3_NO2	nitrates plus nitrites (NO2 in this region is essentially non-detectable)	micromoles/kilogram	NO3_NO2
SRP	soluble reactive phosphorus	micromoles/kilogram	PO4
SiO4	Silicate	micromoles/kilogram	SiO4
POC_ug_kg	particulate organic Carbon	micrograms/kilogram	POC
PON_ug_kg	particulate organic Nitrogen	micrograms/kilogram	PON
Pmax_n	pressure, nominal maximum for station	decibars	prmax
fluor	fluorescence from CTD	micrograms/liter	fluor

Database

Contribute Data

Dataset: Niskin bottle samples
Deployment: WB0508

Dataset acquisition description

Deployment-specific acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: Niskin bottle samplesDeployment: WB0508

Dataset acquisition description

Deployment-specific acquisition description

Dataset Processing Description

Dataset: Niskin bottle samples
Deployment: WB0508