Dataset: CTD Profiles - Upcasts - PE16-01

Name: Upcast CTD profiles from R/V Pelican cruise PE16-01 from the Louisiana Shelf (hypoxic zone) and Gulf of Mexico in 2015 (OMZ_Sulfur_Cycling project)
Published: 2015-12-15
Keywords: oceans

Cite This Dataset

Spatial Extent: N:29.53862 E:-89.56621 S:28.80145 W:-92.76004

Project:

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

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)

Version:

15 December 2015

Version Date:

2015-12-15

Current State:

Final no updates expected

Upcast CTD profiles from R/V Pelican cruise PE16-01 from the Louisiana Shelf (hypoxic zone) and Gulf of Mexico in 2015 (OMZ_Sulfur_Cycling project)

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Description

CTD Profiles - Upcasts - PE16-01
Processed CTD data for cruise PE16-01, Louisiana Shelf, July 2015
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.

Methods & Sampling

Processed CTD data for cruise PE16-01, Louisiana Shelf, July 2015
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

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 "PE1601_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

Data Files

File
CTD_Profiles_PE16-01.csv (Comma Separated Values (.csv), 28.00 KB) MD5:aecb836354a2249be9d5e19b005023cc Primary data file for dataset ID 629083

More Information about this dataset

Funding Sources

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

Deployments

Deployment	Synonyms	Start Date	Platform	Investigator
PE16-01		2015-07-03	R/V Pelican	Frank James Stewart (Chief Scientist)	data info

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.

LI-COR Biospherical PAR Sensor

Supplied Name: Biospherical / Licor

Supplied Description:

Biospherical / Licor

Instrument Type

Generic Name: LI-COR Biospherical PAR Sensor

Acronym: LI-COR Biospherical PAR

Community Identifier: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0074/

Generic Description:

The LI-COR Biospherical PAR Sensor is used to measure Photosynthetically Available Radiation (PAR) in the water column. This instrument designation is used when specific make and model are not known.

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

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

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
Scan_Count	Scan Count	dimensionless	scan
Depth_db	Depth (decibars)	decibars	depth
Depth_m	Depth (meters)	meters	depth
Salinity	Salinity	psu	sal
Temperature_ITS90	Temperature ITS90	Degrees Celsius	temp
Potential_Temperature_ITS90	Potential Temperature ITS90	Degrees Celsius	potemp
Density_sigma_theta	Density sigma_theta	kg m-3	sigma_theta
Oxygen_SBE43_raw	Oxygen SBE43 raw	mV	O2_v
Oxygen_SBE43	Oxygen SBE43	umol kg-1	O2
PAR_Irradiance	PAR/Irradiance Biospherical/Licor	uE/cm^2/sec	PAR
Fluorescence	Fluorescence	ug/l	fluor
Flag	Flag	dimensionless	flag

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Dataset: CTD Profiles - Upcasts - PE16-01