Dataset: ROV CTD profiles
Deployment: MBARI_DEEPC_Cruises

CTD profiles collected during ROV dives

Principal Investigator:

Steven H. D. Haddock (Monterey Bay Aquarium Research Institute, MBARI)

Co-Principal Investigator:

Erik Thuesen (Evergreen State College, ESC)

Contact:

Steven H. D. Haddock (Monterey Bay Aquarium Research Institute, MBARI)

BCO-DMO Data Manager:

Amber D. York (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Project:

Dimensions: Collaborative Research: Life at extremes: Linking the phylogenetic and genomic diversity of ctenophores to ecophysiological adaptations in the deep sea (DEEPC)

Data URL:

https://www.bco-dmo.org/dataset-deployment/685284/data

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Description

Methods & Sampling

Dataset acquisition description

CTD files were collected with a Seabird CTD and other attached sensors mounted on the ROV Doc Ricketts during dives D856 to D861 offshore of California from the surface to 3600 meters.

Oxygen saturation quality flags:

0 Data known to be bad, sensor malfunctioned
1 Questionable data contain some spikes but no known problems with the sensor.
2 Auto-loaded data have been automatically loaded but not checked by human eyes
3 Sensors appear to be operating as specified, checked by sensor technician, data looks reasonable
4 Data are good, Scientist has verified the validity of the data

Data Processing Description

Dataset Processing Description

Retrieved from MBARI database and formatted into columns.

BCO-DMO Data Manager Processing Notes:

* added a conventional header with dataset name, PI name, version date
* modified parameter names to conform with BCO-DMO naming conventions
* changed "None" to "nd" for no data value
* converted date and time to ISO timestamp
* approximate lat lons added from ctenophore observations for all but cruise D856

Data version 2 (2017-10-17) replaced version 1 (2016-12-22):
* more dive data added
* Some variable names changed. Parameter descriptions updated to reflect this.
* lat_approx, lon_approx extracted from the ctenophore dataset removed
* Latitude and Longitude added (from new version of ctd files).

Data version 3 (2019-10-08):
* Data from 2017 to 2019 added to data from data version 2 which was 2016 data.
* Data sorted by time
* Latitude and longitude rounded to 5 decimal places.

Data version 4 (2022-01-27):
* Data from 2020-2021 added
* Data sorted by time
* Latitude and longitude rounded to 5 decimal places.

More information about this dataset deployment

Funding

Award Number	Funding Source
DEB-1542679	NSF Division of Environmental Biology

Instruments

CTD Sea-Bird

Supplied Name: CTD with transmissometer and oxygen sensor

Supplied Description:

CTD files were collected with a Seabird CTD and other attached sensors mounted on the ROV

Instrument Type

Generic Name: CTD Sea-Bird

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

Generic Description:

Conductivity, Temperature, Depth (CTD) sensor package from SeaBird Electronics, no specific unit identified. This instrument designation is used when specific make and model are not known. See also other SeaBird instruments listed under CTD. More information from Sea-Bird Electronics.

Parameters

Supplied Name	Supplied description	Supplied Units	Standard Name
RovDive	Dive identifier. Incrementing MBARI dive number for the vehicle. Dives with prefix "D" were ROV Doc Ricketts dives and the "V" prefix were ROV Ventana dives.	unitless	dive_id
Latitude	Approximate latitude of dive	decimal degrees	lat
Longitude	Approximate longitude of dive; west is negative	decimal degrees	lon
Depth	Depth of sample	meters	depth
ISO_DateTime_UTC	IDate and time (UTC) in ISO 8601:2004(E) format YYYY-mm-ddTHH:MM:SSZ	unitless	ISO_DateTime_UTC
Transmiss	Light transmission at 660 nm	percent	light_trans
Oxygen	Oxygen saturation	milliliters per liter (ml/L)	O2
OxyQual	Oxygen saturation quality flag (0-3; 3 is checked by chemist)	unitless	q_flag
Salin	Salinity	parts per thousand (ppt)	sal
Temp	Temperature	degrees Celsius	temp

Database

Contribute Data

Dataset: ROV CTD profiles
Deployment: MBARI_DEEPC_Cruises

Dataset acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: ROV CTD profilesDeployment: MBARI_DEEPC_Cruises

Dataset acquisition description

Dataset Processing Description

Dataset: ROV CTD profiles
Deployment: MBARI_DEEPC_Cruises