Dataset: NO3_PO4_SiO2
Deployment: OC404-04

Nutrient measurements from Niskin bottle samples

Principal Investigator:

Dennis J. McGillicuddy (Woods Hole Oceanographic Institution, WHOI)

BCO-DMO Data Manager:

Nancy Copley (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Project:

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

Version:

10 October 2007

Deployment Synonyms:

EDDIES 2004 Survey 2, OC404-4, OC404_S2

Coordinated Deployments:

WB0413

Version Date:

2007-10-10

Data URL:

https://www.bco-dmo.org/dataset-deployment/452324/data

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Description

 PI:              Dennis McGillicuddy
 of:              Woods Hole Oceanographic Institution (WHOI)
 dataset:         Nutrient measurements from Niskin bottle samples
 platform:        R/V Oceanus
 
 Methodology: analyses performed by Paul Henderson (phenderson@whoi.edu) at 
    WHOI Nutrients Facility; for sampling methodology, please refer to
    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: matched station number in cruise event log to add sampling location, date and time

Methods & Sampling

Dataset acquisition description

Deployment-specific acquisition description

 PI:              Dennis McGillicuddy
 of:              Woods Hole Oceanographic Institution (WHOI)
 dataset:         Nutrient measurements from Niskin bottle samples
 dates:           26 July 2004 to 11 August 2004  (20040726-20040811)
 location:        N: 31.942  S: 29.958  W: -66.603  E: -59.450
 project/cruise:  EDDIES/OC404-4 2004 Survey 2
 platform:        R/V Oceanus
 
 Methodology: analyses performed by Paul Henderson (phenderson@whoi.edu) at 
    WHOI Nutrients Facility; for sampling methodology, please refer to
    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
    060314: downloaded oc404_4_nuts.dat from EDDIES data Web site;
            added to OCB database by Cyndy Chandler, OCB DMO;
    071004: downloaded oc404_4_nuts_final.txt from EDDIES data Web site 
            and prepared for OCB database
    071010: corrected column label for Nitrite (NO2) data; had been 
            incorrectly named Ammonium (NH4); confirmed this with
            Paul Henderson (WHOI Nutrients Facility) 
    090420: add event number from cruise event log
 
 OCB DMO note: match station number in cruise event log to determine
    sampling location, date and time
    
 Analysis Note: file listing all samples rerun:
    oc404-4 Nutrient reruns 
    Samples that have a value of 0 are below detection limit (BDL). 
    Some of the Phosphate samples from 550 to 650 seem high.

Data Processing Description

Dataset Processing Description

More information about this dataset deployment

Funding

Award Number	Funding Source
OCE-0241310	NSF Division of Ocean Sciences

Instruments

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
sta	station number	dimensionless	sta
SID_Nis	Niskin ID# (#&&&$$$@@ where # is leg#, &&&=cruise #, $$$=ctd cast # and @@=niskin number)	dimensionless	sample
SID_nuts	sample number	dimensionless	sample
depth_n	depth, nominal	meters	depth_n
press	pressure	decibars	press
SiO4	Silicate	micromoles/liter	SiO4
PO4	Phosphate	micromoles/liter	PO4
NO3_NO2	Nitrate + Nitrite	micromoles/liter	NO3_NO2
NO2	Nitrite	micromoles/liter	NO2
event	unique sampling event number composite of GMT date and time	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

Database

Contribute Data

Dataset: NO3_PO4_SiO2
Deployment: OC404-04

Dataset acquisition description

Deployment-specific acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: NO3_PO4_SiO2Deployment: OC404-04

Dataset acquisition description

Deployment-specific acquisition description

Dataset Processing Description

Dataset: NO3_PO4_SiO2
Deployment: OC404-04