Dataset: CliOMZ AT50-10 AUV Clio Data: Processed first profiles
Deployment: AT50-10

Processed first profile sensor data, AUV Clio, AT50-10 cruise

View Data: For data, See Dataset Metadata Page: https://osprey.bco-dmo.org/dataset/928684

Principal Investigator:

Mak A. Saito (Woods Hole Oceanographic Institution, WHOI)

Co-Principal Investigator:

John Breier (University of Texas Rio Grande Valley)

Michael Jakuba (Woods Hole Oceanographic Institution, WHOI)

Scientist:

Allisa Dalpe (Woods Hole Oceanographic Institution, WHOI)

Natalia Moore (University of Texas Rio Grande Valley)

BCO-DMO Data Manager:

Karen Soenen (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Project:

Collaborative Research: Underexplored Connections between Nitrogen and Trace Metal Cycling in Oxygen Minimum Zones Mediated by Metalloenzyme Inventories (CliOMZ)

Version:

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Description

Methods & Sampling

Dataset acquisition description

The AT50-10 cruise contains Clio dives 031-050. Each dive has a processed first profile, which includes processed data from the first descent to maximum depth for a particular dive. This profile data contains all sensors interpolated onto the same time base, binned into 0.5 m depth increments.

Oboard sensors include: CTD (SBE 49 FastCAT CTD), fluorometer (Wetlabs Fluorometer FLNTURTD-3151), optode (AANDERAA Oxygen Optode 4831), SUNA nitrate sensor (SUNA V2 - Submersible Ultraviolet Nitrate Analyzer) and transmissometer (SEA-BIRD SCIENTIFIC C-Star Transmissometer).

Data Processing Description

Dataset Processing Description

More information about this dataset deployment

Funding

Award Number	Funding Source
OCE-1924554	NSF Division of Ocean Sciences

Instruments

Aanderaa 4831 oxygen optode

Supplied Name: AANDERAA Oxygen Optode 4831

Supplied Description:

Instrument Type

Generic Name: Aanderaa 4831 oxygen optode

Acronym: AA optode 4831

Generic Description:

A dissolved oxygen sensor which provides analogue (0-5V) and digital output (RS-232) to third party data loggers, gliders and floats. Measurement based on the ability of selected substances to act as dynamic fluorescence quenchers. The fluorescent indicator is a special platinum porphyrin complex embedded in a gas permeable foil that is exposed to the surrounding water. In this standard model, a black optical isolation coating protects the complex from sunlight and fluorescent particles in the water. This sensing foil is attached to a window providing optical access for the measuring system from inside a watertight housing. The foil is excited by modulated blue light, and the phase of a returned red light is measured. For improved stability the 4831 optode also performs areference phase reading by use of a red LED that does not produce fluorescence in the foil. This model is fitted with a standard sensing foil. By linearizing and temperature compensating, with an incorporated temperature sensor, the absolute O2 concentration can be determined. Accuracy +/- 1.5% or 2uM; precision +/- 0.2 uM.

AUV Clio

Supplied Name:

Supplied Description:

Instrument Type

Generic Name: AUV Clio

Generic Description:

Clio is an autonomous underwater vehicle (AUV) created to accomplish the dual goals of global ocean mapping and biochemistry sampling. The ability to sample dissolved and particulate seawater biochemistry across ocean basins while capturing fine-scale biogeochemical processes sets it apart from other AUVs. Clio is designed to efficiently and precisely move vertically through the ocean, drift laterally to observe water masses, and integrate with research vessel operations to map large horizontal scales up to a depth of 6,000 meters. More information is available at https://www2.whoi.edu/site/deepsubmergencelab/clio/

Satlantic Submersible Ultraviolet Nitrate Analyser V2

Supplied Name: SUNA V2 - Submersible Ultraviolet Nitrate Analyzer

Supplied Description:

Instrument Type

Generic Name: Satlantic Submersible Ultraviolet Nitrate Analyser V2

Acronym: SUNA V2

Generic Description:

The SUNA V2 UV nitrate sensor monitors nutrient concentrations in real-time. This sensor measures nitrate over a wide range of environmental conditions, from blue-ocean nitraclines to storm runoff in rivers and streams. Applications include: Long-term nutrient monitoring, Coastal water profiling, Water quality monitoring, and pollution detection. Full UV spectrum range for maximum accuracy. Real-time nitrate calculation with real-time temperature/salinity compensation. The SUNA V2 incorporates the proven MBARI-ISUS nitrate measurement technology, which is based on the absorption characteristics of nitrate in the UV light spectrum. It has the option of 10 or 5 mm pathlength, a wavelength rage of 190 - 370 nm, and a depth rating of 500 m.

Sea-Bird SBE 49 FastCAT CTD Sensor

Supplied Name: SBE 49 FastCAT CTD

Supplied Description:

Instrument Type

Generic Name: Sea-Bird SBE 49 FastCAT CTD Sensor

Acronym: SBE-49

Generic Description:

The SBE 49 FastCAT is a CTD sensor for use in autonomous platforms. It contains a SBE 3P temperature sensor, a SBE 4C conductivity sensor and a strain-gauge pressure sensor as standard. It can operate in autonomus (16 Hz per sec) or polled mode (transmits each sample). The sensor is depth-rated to 350 m (plastic housing) or 7000 m (titanium housing). Accuracy: +/- 0.002 deg C (temperature), +/- 0.0003 S/m (conductivity), 0.1% of full scale range (pressure).

WET Labs {Sea-Bird WETLabs} C-Star transmissometer

Supplied Name: SEA-BIRD SCIENTIFIC C-Star Transmissometer

Supplied Description:

Instrument Type

Generic Name: WET Labs {Sea-Bird WETLabs} C-Star transmissometer

Acronym: WL CSTAR Trans

Community Identifier: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0160/

Generic Description:

The C-Star transmissometer has a novel monolithic housing with a highly intgrated opto-electronic design to provide a low cost, compact solution for underwater measurements of beam transmittance. The C-Star is capable of free space measurements or flow-through sampling when used with a pump and optical flow tubes. The sensor can be used in profiling, moored, or underway applications. Available with a 6000 m depth rating.

More information on Sea-Bird website: https://www.seabird.com/c-star-transmissometer/product?id=60762467717

WetLabs FLNTU

Supplied Name: Wetlabs Fluorometer FLNTURTD-3151

Supplied Description:

Instrument Type

Generic Name: WetLabs FLNTU

Acronym: FLNTU

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

Generic Description:

The WetLabs ECO FLNTU is a dual-wavelength, single-angle sensor for simultaneously determining both chlorophyll fluorescence and turbidity. It detects light scattered by particles suspended in water, generating an output voltage proportional to turbidity or suspended solids. Scaling factors are used to convert the voltage readings to values representing chlorophyll concentration and turbidity expressed in Nephelometric Turbidity Units (NTUs).

Parameters

Supplied Name	Supplied description	Supplied Units	Standard Name
CRUISE_ID	cruise name	unitless	cruise_id
DIVE_ID	clio dive number, sequential	unitless	dive_id
SUBMERGE_TIME_UTC	time of last Iridium update before submerging	unitless	ISO_DateTime_UTC
SUBMERGE_LAT	latitude of last Iridium update before submerging	decimal degrees	lat
SUBMERGE_LON	longitude of last Iridium update before submerging	decimal degrees	lon
LeftBinDepth	upper threshold of bin	meters	lenbin_max
RightBinDepth	lower threshold of bin	meters	lenbin_min
CTDtemp	temperature as measured by the CTD	celsius	temp
CTDsal	salinity as measured by the CTD	psu, practical salinity unit	sal_ctd
CTDpress	pressure as measured by the CTD	decibar	press
CTDconduct	conductivity as measured by the CTD	Siemens/meter	cond
OptO2	oxygen concentration as measured by the optode	micromolar , uM	O2
FluoChl	chlorophyll concentration as measured by the fluorometer	micrograms per deciliter	pigment_conc
FluoTurb	turbidity as measured by the fluorometer	Nephelometric Turbidity unit	turbidity
TransCalcBeam	calculated beam attenuation coefficient	m^-1	beam_cp
SunaNitrate	nitrate concentration as measured by the suna	micromolar, uM	NO3

Database

Contribute Data

Dataset: CliOMZ AT50-10 AUV Clio Data: Processed first profiles
Deployment: AT50-10

Dataset acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: CliOMZ AT50-10 AUV Clio Data: Processed first profilesDeployment: AT50-10

Dataset acquisition description

Dataset Processing Description

Dataset: CliOMZ AT50-10 AUV Clio Data: Processed first profiles
Deployment: AT50-10