Dataset: GP16 CTD - GT-C Shipboard SBE-Processed Files

Name: GTC shipboard CTD data along the US GEOTRACES East Pacific Zonal Transect from the R/V Thomas G. Thompson TN303 cruise in the tropical Pacific from Peru to Tahiti during 2013 (U.S. GEOTRACES EPZT project)
Published: 2014-10-30
Keywords: oceans

Cite This Dataset

Spatial Extent: N:-10.25017 E:-77.376 S:-16.0005 W:-152.00033

Project:

U.S. GEOTRACES East Pacific Zonal Transect (GP16) (U.S. GEOTRACES EPZT)

Program:

U.S. GEOTRACES (U.S. GEOTRACES)

Lead Principal Investigator:

James W. Moffett (University of Southern California, USC-HIMS)

Co-Principal Investigator:

Gregory A. Cutter (Old Dominion University, ODU)

Christopher R. German (Woods Hole Oceanographic Institution, WHOI)

Contact:

James W. Moffett (University of Southern California, USC-HIMS)

BCO-DMO Data Manager:

Stephen R. Gegg (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Version:

30 October 2014

Version Date:

2014-10-30

Restricted:

Validated:

Yes

Current State:

Final no updates expected

GTC shipboard CTD data along the US GEOTRACES East Pacific Zonal Transect from the R/V Thomas G. Thompson TN303 cruise in the tropical Pacific from Peru to Tahiti during 2013 (U.S. GEOTRACES EPZT project)

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Description

CTD - GT-C Shipboard SBE-Processed Files

Methods & Sampling

From the TN303 cruise report:
Two types of rosette/SBE9plus CTD casts (ODF/30L-Niskin and GT-C/12L-GoFlo) were made at 36 station locations during U.S. GEOTRACES EPZT.

Shipboard CTD data processing was performed automatically at the end of each deployment using SIO/STS CTD processing software v.5.1.6-1. Raw GT-C CTD data and bottle trip files, acquired by SBE Seasave V 7.17a on a Windows XP workstation, were also imported into the Linux processing system, providing a backup of the raw data.

At the end of the cruise, all GT-C CTD data were updated in the database using the post-cast Seasave-processed ".btl" file 5-second averaged CTD data, in order to include processed CTD Oxygen values. The 5-second average used resulted in slightly better agreement between CTD and GoFlo salinity values than the shorter 3-second average used for the Niskin rosette.

Data Files

File
GT-C_SBE_CTD_Proc_v30Oct2014.csv (Comma Separated Values (.csv), 39.15 MB) MD5:d25afd43fa9de37677b57d4057372ef2 Primary data file for dataset ID 522668

More Information about this dataset

Funding Sources

Funding Source	Award Number
NSF Division of Ocean Sciences	OCE-1130870
NSF Division of Ocean Sciences	OCE-1235248

Deployments

Deployment	Synonyms	Start Date	Platform	Investigator
TN303	GP16 GEOTRACES EPZT GEOTRACES East Pacific Zonal Transect (EPZT) GT13 325020131025	2013-10-25	R/V Thomas G. Thompson	James W. Moffett (Chief Scientist) Gregory A. Cutter (Co-Chief Scientist) Christopher R. German (Co-Chief Scientist)	data info

Instruments

CTD Sea-Bird SEACAT 19

Supplied Name:

Supplied Description:

Instrument Type

Generic Name: CTD Sea-Bird SEACAT 19

Acronym: CTD SBE 19

Community Identifier: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0042/

Generic Description:

The Sea-Bird SBE 19 SEACAT Recorder measures conductivity, temperature, and pressure (depth). The SEACAT is self-powered and self-contained and can be deployed in profiling or moored mode. The SBE 19 SEACAT was replaced in 2001 by the 19plus. 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
DATASET_ID	CTD Dataset Identifier	text	dataset_id
EXPOCODE	expedition code assigned by the CCHDO: NODCShipCodeYearMonthDay	text	cruise_name
SECT_ID	cruise section identification number	text	cruise_name
GEOTRC_EVENTNO	GEOTRACES Event Number	dimensionless	event
DATE	Station Date (GMT)	YYYYMMDD	date
TIME	Station Time (GMT)	HHMM	time
LATITUDE	Station Latitude (South is negative)	decimal degrees	lat
LONGITUDE	Station Longitude (West is negative)	decimal degrees	lon
PrDM	Pressure Digiquartz	dbar	press
T090C	Temperature ITS-90	degrees celsius	temp
T190C	Temperature 2 ITS-90	degrees celsius	temp
C0S	Conductivity	S/m	cond
C1S	Conductivity 2	S/m	cond
Sbeox0V	Oxygen raw SBE 43	volts	O2_v
Xmiss	Beam Transmission Chelsea/Seatech	percentage	trans
FlSP	Fluorescence Seapoint	nd	fluor
SeaTurbMtr	Turbidity Seapoint	FTU	turbidity
DepSM	Depth salt water lat = -12.0057	meters	depth
Sal00	Salinity Practical	PSU	sal
Sal11	Salinity 2 Practical	PSU	sal
Density00	Density (density)	kg/m^3	density
Density11	Density 2 (density)	kg/m^3	density
Sigma_e00	Density sigma-theta	kg/m^3	sigma_theta
Sigma_e11	Density 2 sigma-theta	kg/m^3	sigma_theta
Sbeox0	Oxygen SBE 43 WS = 2	umol/kg	O2
Flag	Flag	dimensionless	flag
ISO_DATE_TIME	Date/Time (ISO formatted)	YYYY-MM-DDTHH:MM:SS[.xx]Z	ISO_DateTime_UTC

Status message

Database

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Dataset: GP16 CTD - GT-C Shipboard SBE-Processed Files