Dataset: CTD Profiles - Upcasts - ETNP

Name: Upcast CTD profiles from R/V Pelican cruise PE16-01 from the Louisiana Shelf (hypoxic zone) and Gulf of Mexico from 2013 to 2104 (OMZ_Sulfur_Cycling project)
Published: 2015-12-15
Keywords: oceans

Cite This Dataset

Spatial Extent: N:29.84028 E:-104.20267 S:18.19808 W:-116.51648

Project:

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

Principal Investigator:

Frank Stewart (Georgia Institute of Technology, GA Tech)

Contact:

Frank 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

Data URL:

https://www.bco-dmo.org/dataset/629125/data

Upcast CTD profiles from R/V Pelican cruise PE16-01 from the Louisiana Shelf (hypoxic zone) and Gulf of Mexico from 2013 to 2104 (OMZ_Sulfur_Cycling project)

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Description

CTD Profiles - Upcasts - ETNP - NH1315 and NH1410

Processed CTD data for cruise NH1315, Eastern Tropical North Pacific, June 2013
Processed CTD data for cruise NH1410, Eastern Tropical North Pacific, June 2014

Eastern Tropical North Pacific (ETNP) oxygen minimum zone off Manzanillo, Mexico; sampling transects run southeast-northwest along the Colima coast (~19-24°N, 106-116°W) and northeast-southwest off the coast (~14-18°N, 106-115°W)

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

Supporting references describing data:
Duret_etal_2015_FEMS.pdf
Ganesh_etal_2015_ISME.pdf
Glass_etal_2015_Frontiers_Microbiology.pdf
Padilla_etal_2015_Frontiers_Microbiology.pdf

Acquisition Description

Processed CTD data for cruise NH1315, Eastern Tropical North Pacific, June 2013
Processed CTD data for cruise NH1410, Eastern Tropical North Pacific, June 2014

Measured parameters, including units are listed within the files.
Upcasts only provided, to provide the best oxygen 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 "NH1315_CTD.xlsx" and "NH1410_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

Funding Sources

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

Deployments

Deployment	Synonyms	Start Date	Platform	Investigator
NH1315	OMZoMBiE	2013-06-13	R/V New Horizon	Frank Stewart (Chief Scientist)	data info
NH1410	OMZoMBiE 2 OMZ Floats	2014-05-10	R/V New Horizon	Frank Stewart (Chief Scientist) Mark A. Altabet (Co-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, Seapoint

Supplied Description:

Fluorometer, Seapoint

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

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
Fluorescence	Fluorescence	ug/l	fluor
Flag	Flag	dimensionless	flag

Database

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Dataset: CTD Profiles - Upcasts - ETNP