Dataset: CTD Profiles - Upcasts - CH0212
Deployment: CH0212

CTD Profiles - Upcasts - CH0212

Principal Investigator:

Frank James Stewart (Georgia Institute of Technology, GA Tech)

Contact:

Frank James Stewart (Georgia Institute of Technology, GA Tech)

BCO-DMO Data Manager:

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

Project:

A phylogenetic and functional understanding of microbial sulfur cycling in oxygen minimum zones (OMZ_Sulfur_Cycling)

Current State:

Final no updates expected

Version:

15 December 2015

Version Date:

2015-12-15

Data URL:

https://www.bco-dmo.org/dataset-deployment/629052/data

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Description

CTD Profiles - Upcasts - CH0212
Processed CTD data for cruise CH0212, Louisiana Shelf, July 2012
Louisiana Shelf, Gulf of Mexico, east-west transect through the hypoxic zone on the Louisiana Shelf (~28-29°N, 89-94° W)

Measured parameters, including units are listed within the files.
Upcasts only provided, to provide the best oxygen data.

Supporting reference describing data: Bristow_etal_2015_L&O.pdf

Methods & Sampling

Dataset acquisition description

Processed CTD data for cruise CH0212, Louisiana Shelf, July 2012
Louisiana Shelf, Gulf of Mexico, east-west transect through the hypoxic zone on the Louisiana Shelf (~28-29°N, 89-94° W)

Measured parameters, including units are listed within the files.
Upcasts only provided, to provide the best oxygen data.

Data Processing Description

Dataset Processing Description

Data Processing:
Using the SeaBird data processing software, with the following steps applied
- Filter: applied to the pressure data only (low pass 0.15s)
- Alignment: applied to the oxygen data only (using a value of 3)
- Loop edit: to mark and remove scans when the CTD is moving less than minimum velocity (set at 0.2 m/s)
- Binned: into 1m depth bins

BCO-DMO Processing Notes
- Generated from original files "CH0212_CTD.xlsx" contributed by Frank Stewart
- Parameter names edited to conform to BCO-DMO naming convention found at Choosing Parameter Name
- "nd" (no data) inserted into blank cells

More information about this dataset deployment

Funding

Award Number	Funding Source
OCE-1151698	NSF Division of Ocean Sciences

Instruments

CTD Sea-Bird SBE 911plus

Supplied Name: CTD unit, SBE 911 plus

Supplied Description:

CTD unit, SBE 911 plus

Instrument Type

Generic Name: CTD Sea-Bird SBE 911plus

Acronym: CTD SBE 911plus

Community Identifier: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0058/

Generic Description:

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

Fluorometer

Supplied Name: Fluorometer, Chelsea Aqua

Supplied Description:

Fluorometer, Chelsea Aqua

Instrument Type

Generic Name: Fluorometer

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/113/

Generic Description:

A fluorometer or fluorimeter is a device used to measure parameters of fluorescence: its intensity and wavelength distribution of emission spectrum after excitation by a certain spectrum of light. The instrument is designed to measure the amount of stimulated electromagnetic radiation produced by pulses of electromagnetic radiation emitted into a water sample or in situ.

Sea-Bird SBE 43 Dissolved Oxygen Sensor

Supplied Name: Oxygen sensor, SBE 43

Supplied Description:

Oxygen sensor, SBE 43

Instrument Type

Generic Name: Sea-Bird SBE 43 Dissolved Oxygen Sensor

Acronym: SBE-43 DO

Community Identifier: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0036/

Generic Description:

The Sea-Bird SBE 43 dissolved oxygen sensor is a redesign of the Clark polarographic membrane type of dissolved oxygen sensors. more information from Sea-Bird Electronics

Parameters

Supplied Name	Supplied description	Supplied Units	Standard Name
CruiseId	UNOLS Cruise ID	text	cruiseid
Station	Station Id	text	station
Date	Date	YYYYMMDD	date
Time_Local	Local Time (CST Z+7)	HHMM	time_local
Latitude	Latitude (South is negative)	decimal degrees	lat
Longitude	Longitude (West is negative)	decimal degrees	lon
Depth_db	Depth (decibars)	decibars	depth
Depth_m	Depth (meters)	meters	depth
Salinity	Salinity	psu	sal
Temperature_ITS90	Temperature ITS90	Degrees Celsius	temp
Density_sigma_theta	Density sigma_theta	kg m-3	sigma_theta
Oxygen_SBE43	Oxygen SBE43	umol kg-1	O2
Fluorescence	Fluorescence	ug/l	fluor
Flag	Flag	dimensionless	flag

Database

Contribute Data

Dataset: CTD Profiles - Upcasts - CH0212
Deployment: CH0212

Dataset acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: CTD Profiles - Upcasts - CH0212Deployment: CH0212

Dataset acquisition description

Dataset Processing Description

Dataset: CTD Profiles - Upcasts - CH0212
Deployment: CH0212