Dataset: BVAL46: CTD profiles

Name: Depth profile data from Bermuda Atlantic Time-Series Validation cruise 46 (BVAL46) in the Sargasso Sea from Sept-Oct. 2011
Published: 2020-11-18
Keywords: oceans

Cite This Dataset

DOI:10.26008/1912/bco-dmo.829843.1

Spatial Extent: N:39.453 E:-64.148 S:19.667 W:-65.967

Temporal Extent: 2011-09-29 - 2011-10-13

Project:

Biological Controls on the Ocean C:N:P ratios (Biological C:N:P ratios)

Program:

Dimensions of Biodiversity (Dimensions of Biodiversity)

Ocean Carbon and Biogeochemistry (OCB)

Principal Investigator:

Michael W. Lomas (Bigelow Laboratory for Ocean Sciences)

Co-Principal Investigator:

Adam Martiny (University of California-Irvine, UC Irvine)

BCO-DMO Data Manager:

Nancy Copley (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Version:

Version Date:

2020-11-18

Restricted:

Validated:

Yes

Current State:

Final no updates expected

Depth profile data from Bermuda Atlantic Time-Series Validation cruise 46 (BVAL46) in the Sargasso Sea from Sept-Oct. 2011

Abstract:

Depth profile data including temperature, salinity, oxygen chlorophyll, and beam attenuation from Bermuda Atlantic Time-Series Validation cruise 46 (BVAL46) in the Sargasso Sea from Sept-Oct. 2011

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Archival Copy

Version Date	Archive	Persistent Identifier	Date Assigned
2020-11-18	Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)	10.26008/1912/bco-dmo.829843.1	2020-11-20

Methods & Sampling

Sampling and analytical procedures:

Temperature, salinity, oxygen concentration, and PAR were measured using a Sea-Bird SBE-911+ CTD platform equipped on the rosette deployment system.

Chlorophyll a was measured using a WetLabs FLNTU combination fluorometer and turbidity sensor equipped on the CTD rosette.

Salinity and oxygen water samples were collected via a Niskin bottle rosette system and analyzed according to protocols outlined in Knap et al. 1993

For data processing information see Knap et al. 1993.

For published methodologies please see the Related Publications section.

Data Processing Description

BCO-DMO Processing:- data submitted in Excel file "BVAL46_BCODMO.xlsx" sheet "SHEET1" extracted to csv
- added conventional header with dataset name, PI name, version date
- renamed columns to conform with BCO-DMO naming conventions (removed spaces)
- rounded yrday_utc to 2 decimal places
- changed Longitude to negative values to represent West
- sorted rows by ISO_DateTime_UTC

Data Files

File
BVAL46_ctd.csv (Comma Separated Values (.csv), 8.54 KB) MD5:f86721b823f4ce97061f7b0c41340e95 Primary data file for dataset ID 829843

More Information about this dataset

Funding Sources

Funding Source	Award Number
NSF Division of Ocean Sciences	OCE-1045966
NSF Division of Ocean Sciences	OCE-1046297
NSF Division of Ocean Sciences	OCE-1046001
NSF Division of Ocean Sciences	OCE-1046368

Deployments

Deployment	Synonyms	Start Date	Platform	Investigator
AE1123	BVAL46	2011-09-27	R/V Atlantic Explorer	Michael W. Lomas (Principal Investigator)	data info

Instruments

CTD Sea-Bird SBE 911plus

Supplied Name: Sea-Bird SBE-911+

Supplied Description:

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

WETLabs ECO-FLNTU

Supplied Name:

Supplied Description:

Instrument Type

Generic Name: WETLabs ECO-FLNTU

Community Identifier: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0215/

Generic Description:

The ECO FLNTU is a dual-wavelength, single-angle sensor for simultaneously determining both chlorophyll fluorescence and turbidity.

Parameters

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

Supplied Name	Supplied description	Supplied Units	Standard Name
Cruise	Cruise ID	unitless	cruise_id
ISO_DateTime_UTC	Date/Time (UTC) ISO formatted yyyy-mm-ddTHH:MMZ	unitless	ISO_DateTime_UTC
yrday_utc	UTC day and decimal time: 326.5 for the 326th day of the year or November 22 at 1200 hours (noon)	unitless	yrday_utc
Station	Station ID number	unitless	station
Cast	Cast number	unitless	cast
Latitude	Sampling Site Latitude (North is positive)	decimal degrees	lat
Longitude	Sampling Site Longitude (West is negative)	decimal degrees	lon
Depth	Water sample depth	meters	depth
Temperature	Temperature	degrees Celsius	temp
Salinity	Salinity	Practical Salinity Units (PSU)	sal
Oxygen	Oxygen concentration	micromol/kilogram (umol/kg)	O2
CTD_Chla	Chlorophyll a concentration; measured off a CTD platform	microgram/liter (ug/L)	chl_a
Beam_attenuation	Attenuation meter; 25 cm path length	per meter	beam_cp

Status message

Database

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Dataset: BVAL46: CTD profiles