Dataset: EN614 Hydrography

Name: Hydrographic data collected during casts with a CTD-rosette system on R/V Endeavor cruise EN614 from May to June 2018
Published: 2019-03-06
Keywords: oceans

Cite This Dataset

DOI:10.1575/1912/bco-dmo.757784.1

Spatial Extent: N:16.31844 E:-50.88036 S:4.88196 W:-57.26432

Temporal Extent: 2018-05-07 - 2018-05-29

Project:

Collaborative Research: Impact of the Amazon River Plume on Nitrogen Availability and Planktonic Food Web Dynamics in the Western Tropical North Atlantic (Amazon River Plume Nitrogen)

Principal Investigator:

Joseph Montoya (Georgia Institute of Technology, GA Tech)

Co-Principal Investigator:

Richard N. Peterson (Coastal Carolina University)

Ajit Subramaniam (Lamont-Doherty Earth Observatory, LDEO)

BCO-DMO Data Manager:

Shannon Rauch (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Version:

Version Date:

2019-03-06

Restricted:

Validated:

Yes

Current State:

Final no updates expected

Hydrographic data collected during casts with a CTD-rosette system on R/V Endeavor cruise EN614 from May to June 2018

Abstract:

Hydrographic data collected during casts with a CTD-rosette system on R/V Endeavor cruise EN614 from May to June 2018.

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Archival Copy

Version Date	Archive	Persistent Identifier	Date Assigned
2019-03-06	Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)	10.1575/1912/bco-dmo.757784.1	2019-03-15

Methods & Sampling

Hydrographic data collected during casts with a CTD-rosette system (SBE11plus equipped with a fluorometer, transmissometer, oxygen sensor, and a PAR sensor. Individual sensor details and calibration info provided in the "en614-ProfileNotes" supplemental document.

Data Processing Description

Data were processed using SeaSave v 7.26.7.107.

BCO-DMO Processing:
- modified parameter names (replaced ".", "-", and "/" with underscores; removed parentheses);
- renamed the second "DepSM" column to "DepSM2";
- replaced blank/empty cells with "nd" (no data);
- removed the blank rows interspersed throughout the file;
- in site names, replaced spaces with underscores and removed commas;
- saved the "en614-ProfileNotes" Excel sheet as a PDF to attach to metadata as a supplemental doc.

Data Files

File
EN614_CTD.csv (Comma Separated Values (.csv), 6.67 MB) MD5:2fef61fb8c46241bc337325656536904 Primary data file for dataset ID 757784

Supplemental Files

File
EN614 Profile Processing Notes filename: en614-ProfileNotes.pdf (Portable Document Format (.pdf), 455.30 KB) MD5:5b65ec1581c30900108649ed2094e400 CTD file header and processing notes for EN614 CTD data from J. Montoya.

More Information about this dataset

Funding Sources

Funding Source	Award Number
NSF Division of Ocean Sciences	OCE-1737078

Deployments

Deployment	Synonyms	Start Date	Platform	Investigator
EN614	May18atl	2018-05-06	R/V Endeavor	Joseph Montoya (Chief Scientist)	data info

Instruments

CTD Sea-Bird SBE 911plus

Supplied Name: Sea-Bird SBE 9, 11plus V 5.2

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

Parameters

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

Supplied Name	Supplied description	Supplied Units	Standard Name
Cruise	Cruise identifier	unitless	cruise_id
Site	Site name	unitless	site
Station	Station number	unitless	station
Stn_Event	Station event number	unitless	event
Filename	CTD file name	unitless	file_name
Scan	Scan count	Unitless	scan
TimeJ	Julian days	unitless	julian_day
TimeS	Time, Elapsed	seconds	time_elapsed
Date_ODV	Date and time. Format: yyyy-mm-dd HH:MM	unitless	date
PrDM	Pressure, Digiquartz	decibars (db)	press
DepSM	Depth [salt water, m], lat = 8.34783	meters (m)	depth
T090C	Temperature [ITS-90]	degrees Celsius	temp
T190C	Temperature, 2 [ITS-90]	degrees Celsius	temp
T2_T190C	Temperature Difference, 2 - 1 [ITS-90]	degrees Celsius	temp_diff
C0S_m	Conductivity	Siemens per meter (S/m)	cond
C1S_m	Conductivity 2	Siemens per meter (S/m)	cond
C2_C1S_m	Conductivity Difference, 2 - 1	Siemens per meter (S/m)	cond
V0	Voltage 0	volts	no_bcodmo_term
CStarAt0	Beam Attenuation, WET Labs C-Star	reciprocal meters (1/m)	beam_cp
CStarTr0	Beam Transmission, WET Labs C-Star [%]	unitless (percent)	trans
V1	Voltage 1	volts	no_bcodmo_term
FlECO_AFL	Fluorescence, WET Labs ECO-AFL/FL	milligrams per cubic meter (mg/m^3)	fluor
V2	Voltage 2	volts	no_bcodmo_term
AltM	Altimeter	meters (m)	altitude
V3	Voltage 3	volts	no_bcodmo_term
Par	PAR/Irradiance, Biospherical/Licor	micromoles photons per square meter per second (umol photons/m^2/sec)	PAR
V4	Voltage 4	volts	no_bcodmo_term
Sbeox0V	Oxygen raw, SBE 43 [V]	volts	O2_v
V5	Voltage 5	volts	no_bcodmo_term
Sbeox1V	Oxygen raw, SBE 43, 2 [V]	volts	O2_v
V6	Voltage 6	volts	no_bcodmo_term
V7	Voltage 7	volts	no_bcodmo_term
Spar	SPAR, Biospherical/Licor	micromoles photons per square meter per second (umol photons/m^2/sec)	SPAR
Pumps	Pump Status	unitless	no_bcodmo_term
Latitude	Latitude	decimal degrees	lat
Longitude	Longitude	decimal degrees	lon
Sal00	Salinity, Practical	PSU	sal
Sal11	Salinity, Practical, 2	PSU	sal
Sigma_00	Density [sigma-theta]	kilograms per cubic meter (kg/m^3)	sigma_0
Sigma_11	Density, 2 [sigma-theta]	kilograms per cubic meter (kg/m^3)	sigma_0
Sbeox0Mm_L	Oxygen, SBE 43, WS = 2	micromoles per liter (umol/L)	O2
Sbeox1Mm_L	Oxygen, SBE 43, 2, WS = 2	micromoles per liter (umol/L)	O2
Potemp090C	Potential Temperature [ITS-90]	degrees Celsius	potemp
Potemp190C	Potential Temperature, 2 [ITS-90]	degrees Celsius	potemp
SvCM	Sound Velocity [Chen-Millero]	meters per second (m/s)	sound_vel
SvCM1	Sound Velocity, 2 [Chen-Millero]	meters per second (m/s)	sound_vel
Dz_dtM	Descent Rate, WS = 2	meters per second (m/s)	descent_rate
Gpa	Geopotential Anomaly	joules per kilogram (J/kg)	no_bcodmo_term
Nbin	Number of scans per bin	unitless	nbin
Flag	Flag	unitless	flag
DepSM2	Depth [salt water, m], lat = 8.34783	meters	depth

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