Dataset: inorganic nutrients
Deployment: KN207-01

Inorganic nutrients (PO4, SiOH4, NO3, NO2, NH4) from KN207-01 cruise.

Principal Investigator:

Benjamin A.S. Van Mooy (Woods Hole Oceanographic Institution, WHOI)

BCO-DMO Data Manager:

Shannon Rauch (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Project:

Biogeochemical Impact and Fate of Non-phosphorus Membrane Lipids in the Sargasso Sea (SargassoSeaLipids)

Current State:

Final no updates expected

Version:

28 June 2013

Deployment Synonyms:

BLATZ II

Version Date:

2013-06-28

Data URL:

https://osprey.bco-dmo.org/dataset-deployment/456028/data

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Description

PO4, SiOH4, NO3, NO2, and NH4 from the KN207-01 cruise.

Methods & Sampling

Dataset acquisition description

Seawater was collected with Niskin bottles. Samples were pre-filtered though a 0.2 micrometer filter into and acid-washed HDPE bottle and frozen at -20 degrees C. Samples were shipped frozen to the University of Washington Marine Chemistry Laboratory. Samples were analyzed in January 2013 on a Technicon AAII Autoanalyzer.

Analytical methods (from http://www.ocean.washington.edu/story/Marine+Chemistry+Laboratory):

Analysis	Method References	EPA/SM#	NELAC Code	2011 Detection_Limits
PO₄	UNESCO(1994)	EPA 365.5_1.4_1997	WM920270	0.03uM
SiOH₄	UNESCO(1994)	EPA 366	WM920240	0.76uM
NO₃	UNESCO(1994)	EPA 353.4_2_199	10068209	0.08uM
NO₂	UNESCO(1994)	EPA 353.4_2_1997	10068209	0.01uM
NH₄	UNESCO(1994)	EPA 349	WM920220	0.07uM
Total N	Valderrama(1981)	SM 4500-P J	WM920270	1.08uM
Total P	Valderrama(1981)	SM 4500-P J	WM920270	0.04uM

Data Processing Description

Dataset Processing Description

BCO-DMO added date and lat/lon from the CTD data based on cast number.

More information about this dataset deployment

Funding

Award Number	Funding Source
OCE-1031143	NSF Division of Ocean Sciences

Instruments

Nutrient Autoanalyzer

Supplied Description:

Samples analyzed by Kathy Krogslund at University of Washington in January 2013 on Technicon AAII autoanalyzer.

Instrument Type

Generic Name: Nutrient Autoanalyzer

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/LAB04/

Generic Description:

Nutrient Autoanalyzer is a generic term used when specific type, make and model were not specified. In general, a Nutrient Autoanalyzer is an automated flow-thru system for doing nutrient analysis (nitrate, ammonium, orthophosphate, and silicate) on seawater samples.

Parameters

Supplied Name	Supplied description	Supplied Units	Standard Name
cast	CTD cast number.	integer	cast
month_cast	2-digit month of the cast.	mm (01 to 12)	month_gmt
day_cast	2-digit day of month of the cast.	dd (01 to 31)	day_gmt
year	4-digit year in YYYY format.	unitless	year
lat_nom	Nominal latitude. Values indicate latitude at start of CTD cast. Positive = North.	decimal degrees	lat_n
lon_nom	Nominal longitude. Values indicate longitude at start of CTD cast. Negative = West.	decimal degrees	lon_n
depth	Sample depth, in meters.	meters	depth
PO4	PO4 concentration. Samples were NOT pre-concentrated with MAGIC.	uM	PO4
SiOH4	SiOH4 concentration.	uM	no_bcodmo_term
NO3	NO3 concentration.	uM	NO3
NO2	NO2 concentration.	uM	NO2
NH4	NH4 concentration.	uM	NH4

Database

Contribute Data

Dataset: inorganic nutrients
Deployment: KN207-01

Dataset acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: inorganic nutrientsDeployment: KN207-01

Dataset acquisition description

Dataset Processing Description

Dataset: inorganic nutrients
Deployment: KN207-01