Dataset: CTD
Deployment: DRFT08RR

SOFeX project CTD profile data

Principal Investigator:

David Siegel (University of California-Santa Barbara, UCSB-ICESS)

Technician:

Damien Kunz (University of California-Santa Barbara, UCSB)

BCO-DMO Data Manager:

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

Project:

Southern Ocean Iron Experiment (SOFeX)

Current State:

Final no updates expected

Version:

27 March 2007

Deployment Synonyms:

RR_2002_SOFeX

Coordinated Deployments:

COOK19MV, PS02_2002

Version Date:

2007-03-27

Data URL:

https://www.bco-dmo.org/dataset-deployment/451571/data

Expand/Collapse All

Description

SOFeX project CTD profile data

Methods & Sampling

Dataset acquisition description

Methodology: data were collected with SeaBird 911 CTD profiler

Deployment-specific acquisition description

 dates:           10 January 2002 to 10 February 2002  (20020110-20020210)
 location:        N: -54.093  S: -66.602  W: -172.153  E: -169.242
 project/cruise:  SOFeX/

Data Processing Description

Dataset Processing Description

Deployment-specific processing description

<pre>
Change history: YYMMDD
060110: original version prepared from Scripps standard CTD (SIO CTD) casts
060119: added to OCB database by Cyndy Chandler, OCB DMO, (cchandler@whoi.edu)
070327: dates and position information corrected to match Seabird header records.

<a href="http://ocb.whoi.edu/SOFeX/PI-NOTES/ctd-SIO_RR.html">Methodology</a>

</pre>

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

Data were processed using the standard set of Seabird utilities,
to generate final 1-decibar pressure sorted downtrace files for all CTD casts.
All final processed *.asc CTD files were downloaded by the OCB DMO
in December 2005 from the SOFeX web site: 
http://www.mbari.org/SOFeX/Revelle_Data/Revelle_Station_Data/Revelle_SIO... 
 
The event number, date, time, latitude
and longitude position information were taken from the *.hdr CTD header files. Dates and positions as initially
entered in the database were incorrect. This information was corrected in the 27 March 2007 version of the database.

Final CTD station header record: 
<a href="http://ocb.whoi.edu/SOFeX/PI-NOTES/SX002C01_hdr.txt">SIO-CTD station 2
</a>

Final CTD station configuration (con report) files were not provided with .asc files.

Also, note there is no data file for station 31.

PI note: the following SIO CTD casts from Revelle have bad oxygen data. Please consult this list to avoid using bad data.

<pre>SX020C01
SX021C01
SX021C02
SX022C01
SX024C01
SX024C03
SX024C04
SX026C04
SX027C01
SX027C02
SX028C01
SX028C02
SX028C03
SX029C01

Note that the following SIO CTD casts from Revelle have bad transmissometer data:

SX002C01
SX003C01
SX004C01
SX005C01
SX006C01
SX007C01
SX008C01
SX009C01
SX009C04
SX010C01
SX010C02
SX011C02
SX011C03
SX012C02
SX015C01
SX016C01
SX017C01
SX018C01
SX019C01
SX019C02
SX019C03
SX019C04
SX020C01
SX027C01
SX028C02
</pre>

More information about this dataset deployment

Instruments

CTD Sea-Bird 911

Supplied Name: CTD Seabird 911

Supplied Description:

Instrument Type

Generic Name: CTD Sea-Bird 911

Acronym: CTD SBE 911

Community Identifier: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0035/

Generic Description:

The Sea-Bird SBE 911 is a type of CTD instrument package. The SBE 911 includes the SBE 9 Underwater Unit and the SBE 11 Deck Unit (for real-time readout using conductive wire) for deployment from a vessel. The combination of the SBE 9 and SBE 11 is called a SBE 911. The SBE 9 uses Sea-Bird's standard modular temperature and conductivity sensors (SBE 3 and SBE 4). The SBE 9 CTD can be configured with auxiliary sensors to measure other parameters including dissolved oxygen, pH, turbidity, fluorescence, light (PAR), light transmission, etc.). More information from Sea-Bird Electronics.

Parameters

Supplied Name	Supplied description	Supplied Units	Standard Name
event	unique sampling event number from event log (day of year and time (UTC))	doYhhmm	event
date	date sampling began (UTC)	YYYYMMDD	date
time	time sampling began (UTC)	hhmm	time
time_L	time, local (GMT +13)	hhmm	time_local
lon	longitude, negative denotes West	decimal degrees	lon
lat	latitude, negative denotes South	decimal degrees	lat
seafloor	seafloor depth	meters	depth_bottom
Pmax	pressure, maximum in profile	meters	prmax
station	station location number	dimensionless	station
cast	CTD cast number per cruise	dimensionless	cast
press	pressure, from CTD	decibars	press
depth	depth, calculated from pressure	meters	depth
temp	temperature, from CTD, ITS-90 (from primary T0 sensor)	degrees Celsius	temp
potemp	potential temperature, ITS-90 (from primary T0,C0 sensors)	degrees Celsius	potemp
sal	salinity, from CTD, PSS-78 (PSU) (from primary T0,C0 sensor)	dimensionless	sal
sigma_0	sigma theta (potential density) (from primary T0,C0 sensors)	kilograms/meter^3	sigma_0
O2_ml_L	oxygen, dissolved	ml/liter	O2_ml_L
O2_sat	oxygen saturation	ml/liter	O2sat
O2_satP	oxygen saturation, percent	percent	no_bcodmo_term
trans	transmissivity (CST-492D)	percent	trans
fluor	fluorescence, chelsea FlC	unknown ??	fluor
PAR	Photosynthetically Available Radiation irradiance	unknown ??	PAR
SPAR	surface PAR irradiance	unknown ??	SPAR
cond	conductivity	milliSiemens/centimeter	cond_mS
bat	unknown; likely this is Beam Attenuation from the Chelsea/Seatech/Wetlab Cstar sensor in 1/m units	unknown ??	no_bcodmo_term
SvW	unknown; possibly sound velocity in water, wilson [m/s]	unknown ??	no_bcodmo_term
sta	station identifier	dimensionless	sta
ev_type	event type descriptor string	dimensionless	ev_type
oxygen_ctd	oxygen, dissolved from SBE CTD (is this O2_umol_kg ??)	Mm/Kg	no_bcodmo_term
V2	unknown, possibly altimeter ??	unknown ??	no_bcodmo_term
V3	unknown, zeroed, possibly SPAR	unknown ??	no_bcodmo_term
yrDay	day of year sampling began	decimal day of year	yrday
sigma_t	sigma-T (density)	kilograms/meter^3	sigma_t
beam_att	Beam attenuation Chelsea/Seatech	1/meter	beam_cp
alt	altimeter	meters	no_bcodmo_term
temp_S	temperature, from CTD, ITS-90	degrees Celsius	temp2
sal_S	salinity, from CTD, PSS-78 (PSU)	dimensionless	sal2
potemp_S	potential temperature, ITS-90	degrees Celsius	potemp
sigma_t_S	sigma-T (density)	kilograms/meter^3	sigma_t
sigma_0_S	sigma theta (potential density)	kilograms/meter^3	sigma_0
cond_S	conductivity, from CTD, secondary sensor	milliSiemens/centimeter	cond_mS2

Database

Contribute Data

Dataset: CTD
Deployment: DRFT08RR

Dataset acquisition description

Deployment-specific acquisition description

Dataset Processing Description

Deployment-specific processing description

Database

Contribute Data

Dataset: CTDDeployment: DRFT08RR

Dataset acquisition description

Deployment-specific acquisition description

Dataset Processing Description

Deployment-specific processing description

Dataset: CTD
Deployment: DRFT08RR