Dataset: bottle_TM_RR

Name: Trace Metal clean rosette bottle hydrographic and nutrient data from R/V Roger Revelle cruise DRFT08RR from the Southern Ocean, south of New Zealand in 2002 (SOFeX project)
Published: 2006-01-09
Keywords: oceans

Cite This Dataset

Spatial Extent: N:-54.093 E:-169.242 S:-66.602 W:-172.038

Project:

Southern Ocean Iron Experiment (SOFeX)

Program:

Ocean Carbon and Biogeochemistry (OCB)

Iron Synthesis (FeSynth)

Principal Investigator:

Ken Johnson (Monterey Bay Aquarium Research Institute, MBARI)

Contact:

Dr Zanna Chase (Monterey Bay Aquarium Research Institute, MBARI)

BCO-DMO Data Manager:

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

Version:

9 January 2006

Version Date:

2006-01-09

Validated:

Yes

Current State:

Final no updates expected

Trace Metal clean rosette bottle hydrographic and nutrient data from R/V Roger Revelle cruise DRFT08RR from the Southern Ocean, south of New Zealand in 2002 (SOFeX project)

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Description

Trace Metal Clean Rosette bottle hydrographic and nutrient data

Methods & Sampling

 dates:           11 January 2002 to 10 February 2002  (20020111-20020210)
 location:        N: -54.093  S: -66.602  W: -172.038  E: -169.242 
 project/cruise:  SOFeX/RR

Nutrients were run at MBARI on an Alpkem RFA.
Some vials thawed during transit and produced bad numbers; these have been excluded

Data Processing Description

Change history: YYMMDD
   060110: downloaded original TMR CTD cast data from SOFeX project data web site;
           added to OCB database by Cyndy Chandler, OCB DMO, (cchandler@whoi.edu);
           all units information taken from original .xls file;

10 January 2006: Prepared for OCB data system by Terry McKee (PO Dept, WHOI) and Cyndy Chandler, OCB DMO (WHOI).

The TM_bottle data object was prepared from an excel file of
merged CTD and nutrient data file for the MBARI TM Rosette on Revelle.
Contact Zanna Chase (zanna@mbari.org) with questions about the original data.

original file: was downloaded in December 2005 from the
SOFeX data web site:
merged_TM_CTD_nut.xls

Note: cond units are S/m;
Temp is T90 (ITS-90 scale confirmed from .btl file);
Potemp is also T90;
PO4, Si, NO3 and NO2 are all uM, micromolar

The event number, date, time, latitude
and longitude position information were taken from the CTD header records.
For TMR1 station 7, the latitude may have been entered incorrectly during data acquisition
(55 °W) but was not changed to be consistent with the
cruise Activity Log (56 °W).

Final TMR-CTD station *.btl file header record showing history of processing steps:

TMR-CTD station 7

MATLAB data processing scripts:
Physical properties of seawater function was used to compute potential density:: PhyPropSW sw_pden.m

Data Files

File
TM_bottle.csv (Comma Separated Values (.csv), 26.60 KB) MD5:12eefd3df7312ae30c2b1406b07a40f6 Primary data file for dataset ID 2935

More Information about this dataset

Funding Sources

None available yet

Deployments

Deployment	Synonyms	Start Date	Platform	Investigator
DRFT08RR	RR_2002_SOFeX	2002-01-06	R/V Roger Revelle	Ken Johnson (Chief Scientist)	data info

Instruments

Trace Metal Bottle

Supplied Description:

Instrument Type

Generic Name: Trace Metal Bottle

Acronym: TM Bottle

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/30/

Generic Description:

Trace metal (TM) clean rosette bottle used for collecting trace metal clean seawater samples.

Parameters

Date and time formats are described in python strftime() syntax.

Supplied Name	Supplied description	Supplied Units	Standard Name
event	unique sampling event composite of date and time	YYYYMMDDhhmm	event
date	date sampling began	YYYYMMDD	date
time	time sampling began	hhmm	time
lon	longitude, negative denotes West	decimal degrees	lon
lat	latitude, negative denotes South	decimal degrees	lat
sta	station identifier	dimensionless	sta
bot	TM Rosette bottle number	dimensionless	bot
depth	depth, calculated from pressure	meters	depth
press	pressure, from CTD Strain Gauge	decibars	press
temp	temperature, from CTD, ITS-90	degrees Celsius	temp
sal	salinity, from CTD, PSS-78 (PSU)	dimensionless	sal
sigma_0	sigma theta (potential density) (from primary T0,C0 sensors)	kilograms/meter^3	sigma_0
potemp	potential temperature, ITS-90 (from primary T0,C0 sensors)	degrees Celsius	potemp
cond	conductivity, from CTD (from primary C0 sensor)	Siemens/meter	cond
fluor	fluorescence, from CTD profiler	V ?? voltage	fluor
PO4	Phosphate	microMolar	PO4
Si	Silicon	microMolar	Si
NO3	Nitrate	microMolar	NO3
NO2	Nitrite	microMolar	NO2

Status message

Database

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Dataset: bottle_TM_RR