Dataset: Dissolved O2 and Potential Density
Deployment: AT26-14

Dissolved Oxygen potential density measurements from 3 cruises.

Principal Investigator:

Erik E. Cordes (Temple University, Temple)

Contact:

Erik E. Cordes (Temple University, Temple)

BCO-DMO Data Manager:

Hannah Ake (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Project:

Physiological and genetic responses of the deep-water coral, Lophelia pertusa, to ongoing ocean acidification in the Gulf of Mexico (Lophelia OA)

Current State:

Final no updates expected

Version:

Final

Version Date:

2016-09-19

Data URL:

https://www.bco-dmo.org/dataset-deployment/659046/data

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Description

Dissolved O2 and potential density data derived from surface-deployed and vehicle-mounted CTD measurements taken on the R/V Atlantis, R/V Ronald Brown, and E/V Nautilus in the Gulf of Mexico and Florida from 2010 to 2014.

Methods & Sampling

Dataset acquisition description

CTD data (temperature, salinity, pressure, and dissolved oxygen) were collected both as water column data from ship deployments and as bottom–water data from a vehicle–mounted CTD. In all years, a SBE 9/11+ CTD was used for water column measurements, while vehicle-mounted CTD usage varied by year: SBE 19 (2010), SBE 37-SI (2012), and SBE 49 (2013, 2014). All dissolved oxygen measurements were collected using a SBE 43 dissolved oxygen sensor.

Data Processing Description

Dataset Processing Description

CTD and dissolved oxygen measurements were vertically binned every meter in order to smooth water column profiles prior to additional analyses.

Data Management Office Notes:

-Combined several tabs from the original file into one table.
-Site, cruise, and year were separated into 3 columns. This information was initially in one column.
-Re-formatted column names to comply with BCO-DMO naming standards.

More information about this dataset deployment

Funding

Award Number	Funding Source
OCE-1220478	NSF Division of Ocean Sciences

Instruments

Bottle

Supplied Name: Vehicle mounted bottle

Supplied Description:

Water samples collected by vehicle-mounted bottle

Instrument Type

Generic Name: Bottle

Generic Description:

A container, typically made of glass or plastic and with a narrow neck, used for storing drinks or other liquids.

CTD - profiler

Supplied Name: CTD

Supplied Description:

Water samples taken from CTD casts

Instrument Type

Generic Name: CTD - profiler

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/130/

Generic Description:

The Conductivity, Temperature, Depth (CTD) unit is an integrated instrument package designed to measure the conductivity, temperature, and pressure (depth) of the water column. The instrument is lowered via cable through the water column. It permits scientists to observe the physical properties in real-time via a conducting cable, which is typically connected to a CTD to a deck unit and computer on a ship. The CTD is often configured with additional optional sensors including fluorometers, transmissometers and/or radiometers. It is often combined with a Rosette of water sampling bottles (e.g. Niskin, GO-FLO) for collecting discrete water samples during the cast.

This term applies to profiling CTDs. For fixed CTDs, see https://www.bco-dmo.org/instrument/869934.

Oxygen Sensor

Supplied Name: SBE 43 dissolved oxygen sensor

Supplied Description:

All dissolved oxygen measurements collected using this instrument

Instrument Type

Generic Name: Oxygen Sensor

Acronym: Dissolved Oxygen Sensor

Generic Description:

An electronic device that measures the proportion of oxygen (O2) in the gas or liquid being analyzed

Parameters

Supplied Name	Supplied description	Supplied Units	Standard Name
site	Site where samples were taken	unitless	site
cruise_name	Project investigator's cruise name	unitless	cruise_name
year	Year of cruise; YYYY	unitless	year
depth	Depth at which sample was taken	meters	depth
temperature	Temperature at depth	celsius	temperature
salinity	Salinity of water sample	practical salinity units (PSU)	sal
potential_density	Sigma-t density of seawater	kilogram per cubic meter (kg/m^3)	sigma_t
DO	Dissolved oxygen concentration	micromoles per kilogram (umol/kg)	O2_umol_kg
cruise_id	Official cruise identification	unitless	cruise_id
lat	Latitude	decimal degrees	lat
lon	Longitude	decimal degrees	lon

Database

Contribute Data

Dataset: Dissolved O2 and Potential Density
Deployment: AT26-14

Dataset acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: Dissolved O2 and Potential DensityDeployment: AT26-14

Dataset acquisition description

Dataset Processing Description

Dataset: Dissolved O2 and Potential Density
Deployment: AT26-14