Dataset: CTD profiles

Name: CTD profiles collected on the NW Atlantic shelf off New England during the R/V Connecticut (CT2015-08) cruise during August 2015 (Ciliate Diversity project)
Published: 2015-09-14
Keywords: oceans

Cite This Dataset

Spatial Extent: N:40.9928 E:-71.3808 S:39.5192 W:-71.8937

Project:

Patterns of diversity in planktonic ciliates: spatio-temporal scales and community assembly in the coastal ocean (Ciliate Diversity)

Principal Investigator:

George McManus (University of Connecticut, UConn - Avery Point)

Co-Principal Investigator:

Laura A. Katz (Smith College)

BCO-DMO Data Manager:

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

Version:

2015-09-14

Version Date:

2015-09-14

Validated:

Yes

Current State:

Final with updates expected

CTD profiles collected on the NW Atlantic shelf off New England during the R/V Connecticut (CT2015-08) cruise during August 2015 (Ciliate Diversity project)

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Data Processing Description

Data were processed in SeaBird Seasave software, version 7.21a. Raw hexadecimal data files were converted to base 10. Temperature and conductivity data were low-pass filtered to match time constants. The loopedit function was implemented to eliminate loops in the data due to ship roll, and the data were bin averaged to one-meter intervals. Processed data were imported into Excel.

BCO-DMO Processing:

- served data via a toplevel file, adding columns for cruise_id, year, month, day, time_start, lat and lon, ISO_DateTime_UTC, and yrday_utc

version: 2015-09-11: same data as 2015-09-14 but no ISO_DateTime_UTC and yrday_utc

Data Files

File
CTD_iso.csv (Comma Separated Values (.csv), 315.72 KB) MD5:dedb502b3e1ae3b1f13b144a4df0771a Primary data file for dataset ID 566273

More Information about this dataset

Funding Sources

Funding Source	Award Number
NSF Division of Ocean Sciences	OCE-1436003
NSF Division of Ocean Sciences	OCE-1435515

Deployments

Deployment	Synonyms	Start Date	Platform	Investigator
CT2015-08		2015-08-12	R/V Connecticut		data info

Instruments

CTD Sea-Bird 9

Supplied Name:

Supplied Description:

SeaBird CTD equipped with conductivity and twin temperature sensors, SBE 43 oxygen sensor, and WETLabs WETstar fluorometer.

Instrument Type

Generic Name: CTD Sea-Bird 9

Acronym: CTD SBE 9

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

Generic Description:

The Sea-Bird SBE 9 is a type of CTD instrument package. The SBE 9 is the Underwater Unit and is most often combined with the SBE 11 Deck Unit (for real-time readout using conductive wire) when deployed from a research vessel. The combination of the SBE 9 and SBE 11 is called a SBE 911. The SBE 9 uses Sea-Bird's standard modular temperature and conductivity sensors (SBE 3 and SBE 4). The SBE 9 CTD can be configured with auxiliary sensors to measure other parameters including dissolved oxygen, pH, turbidity, fluorometer, altimeter, etc.). Note that in most cases, it is more accurate to specify SBE 911 than SBE 9 since it is likely a SBE 11 deck unit was used. more information from Sea-Bird Electronics

Sea-Bird SBE 43 Dissolved Oxygen Sensor

Supplied Name:

Supplied Description:

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

WET Labs (Sea-Bird WETLabs) WETStar fluorometer

Supplied Name:

Supplied Description:

Instrument Type

Generic Name: WET Labs (Sea-Bird WETLabs) WETStar fluorometer

Acronym: WETStar

Community Identifier: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0075/

Generic Description:

Submersible fluorometer designed for through-flow or pumped CTD applications manufactured by WetLabs and which can be configured for various types of fluorescence. The probe has a temperature range of 0-30 degrees C and a depth rating of 600 meters.

Parameters

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

Supplied Name	Supplied description	Supplied Units	Standard Name
cruise_id	cruise identification	unitless	cruise_id
year	year	YYYY	year
month	UTC month	mm	month
day	UTC day of month	dd	day
station	station	unitless	station
lat	latitude; north is postive	decimal degrees	lat
lon	longitude; east is positive	decimal degrees	lon
time_start	cast start time	HH:MM:SS	time_start
ISO_DateTime_UTC	Date/Time (UTC) ISO formatted: YYYY-mm-ddTHH:MM:SS[.xx]Z (UTC time)	unitless	ISO_DateTime_UTC
yrday_utc	UTC day and decimal time: as 326.5 for the 326th day of the year or November 22 at 1200 hours (noon).	unitless	yrday_utc
temp	temperature; ITS-90	degrees Celsius	temp
pressure	pressure	decibars	press
depth	depth	meters	depth
oxygen	oxygen from SBE43	mg/l	O2_mg_L
salinity	salinity	PSU	sal
density	density	Kg/m^3	density
fluor	fluor	mg/m^3	fluor
temp2	temperature from secondary sensor; ITS-68	degrees Celsius	temp2
flag	quality flag; 0 = good	unitless	flag

Status message

Database

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Dataset: CTD profiles