Dataset: Nutrients
Deployment: RB-08-02

Nutrients from Niskins

Principal Investigator:

Dr Jia-Zhong Zhang (National Oceanic and Atmospheric Administration, NOAA-AOML)

Contact:

Burke Hales (Oregon State University, OSU-CEOAS)

BCO-DMO Data Manager:

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

Project:

Southern Ocean Gas Exchange Experiment (SO_GasEx)

Current State:

Final no updates expected

Version:

16 Feb 2010

Deployment Synonyms:

RB0802, RHB_SO-GasEx

Version Date:

2010-02-16

Data URL:

https://osprey.bco-dmo.org/dataset-deployment/452993/data

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Description

SO-GasEx Final Nutrient data collected from Niskin bottles of CTD casts

Methods & Sampling

Dataset acquisition description

See: SO-GasEx cruise report, Section 5.7.7 ppgs 50-52

Nutrient data collected from Niskin bottles of CTD casts from SOGasEx cruise,
Feb-April 2008 aboard RV Ron Brown.

Id in this file represents the CTD station number followed by a 0 and the cast number
and then followed by the niskin number. e.g. Stat-samp 10101 is CTD station 1, cast 1 and niskin 1.

PO4, Sil, NO3+NO2, NO2, NO3 and NH4 are concentrations of phosphate, silicate,
nitrate plus nitrite, nitrite, nitrate and ammonium in micromole per kg seawater.

Flags following each nutrient column indicate data quality.
Flag = 2 means good;
Flag = 3 means questionable;
Flag = 4 means bad;
Flag = 9 means no data.
'No data' is written as 'nd'.

At station 33 water samples were collected via pump and hose.
Salinity values were taken from station 31 and the depths are in meters.

Data Processing Description

Dataset Processing Description

BCO-DMO Processing Notes
- Generated from original file gasex_08.data-final 2010.xls

BCO-DMO Edits
- event, station, date, time, lon, lat inserted from CTD headers file
- '-99' (No data flag in original) changed to 'nd'
- decimal places padded to 1 or 2 places as appropriate for consistency
- parameter names modified to conform to BCO-DMO convention

More information about this dataset deployment

Funding

Award Number	Funding Source
unknown SO_GasEx NASA	National Aeronautics & Space Administration
unknown SO_GasEx NOAA	National Oceanic and Atmospheric Administration
unknown SO_GasEx NSF	National Science Foundation

Instruments

None available yet

Parameters

Supplied Name	Supplied description	Supplied Units	Standard Name
event	Unique event number	YDAHHMM	event
date	Date (UTC)	YYYYMMDD	date
time	Time (UTC)	HHMM	time
lon	station longitude (West is negative)	decimal degrees	lon
lat	station latitude (South is negative)	decimal degrees	lat
ID	The CTD station number followed by a 0 and the cast number and then followed by the niskin number. e.g. Stat-samp 10101 is CTD station 1; cast 1 and niskin 1.	integer	sample
station	SO-GasEx CTD Station Id	integer	station
Samp	The niskin number appended with a leading 1. SAMP 101 is niskin 1. SAMP 124 is niskin 24.	integer	sample
pres	pressure from CTD	decibars	press
PO4	phosphate	micromol/kg	PO4
PO4_QC	Phosphate Data Quality Flag: 2 means good; 3 means questionable; 4 means bad; 9 means no data.	integer	flag
Si	silicate	micromol/kg	Si
Si_QC	silicate Data Quality Flag: 2 means good; 3 means questionable; 4 means bad; 9 means no data.	integer	flag
NO3_plus_NO2	nitrate plus nitrite	micromol/kg	no_bcodmo_term
NO3_plus_NO2_QC	nitrate plus nitrite Data Quality Flag: 2 means good; 3 means questionable; 4 means bad; 9 means no data.	integer	flag
NO2	nitrite	micromol/kg	NO2
NO2_QC	nitrite Data Quality Flag: 2 means good; 3 means questionable; 4 means bad; 9 means no data.	integer	flag
NO3	nitrate	micromol/kg	NO3
NO3_QC	nitrate Data Quality Flag: 2 means good; 3 means questionable; 4 means bad; 9 means no data.	integer	flag
NH4	ammonium	micromol/kg	NH4
NH4_QC	ammonium Data Quality Flag: 2 means good; 3 means questionable; 4 means bad; 9 means no data.	integer	flag

Database

Contribute Data

Dataset: Nutrients
Deployment: RB-08-02

Dataset acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: NutrientsDeployment: RB-08-02

Dataset acquisition description

Dataset Processing Description

Dataset: Nutrients
Deployment: RB-08-02