Dataset: GN01 CTD - ODF Profiles

Name: CTD-ODF profiles from GEOTRACES-Arctic Section cruise HLY1502, August to October 2015
Published: 2022-12-15
Keywords: oceans

Cite This Dataset

DOI:10.26008/1912/bco-dmo.700817.2

Spatial Extent: N:90 E:-148 S:60 W:167

Temporal Extent: 2015-08-12 - 2015-10-07

Project:

U.S. Arctic GEOTRACES Study (GN01) (U.S. GEOTRACES Arctic)

Program:

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

Principal Investigator:

Gregory A. Cutter (Old Dominion University, ODU)

David C. Kadko (Florida International University, FIU)

William M. Landing (Florida State University, FSU - EOAS)

Contact:

William M. Landing (Florida State University, FSU - EOAS)

BCO-DMO Data Manager:

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

Version:

Version Date:

2022-12-15

Restricted:

Validated:

Yes

Current State:

Final no updates expected

CTD-ODF profiles from GEOTRACES-Arctic Section cruise HLY1502, August to October 2015

Abstract:

These data are from the ODF CTD rosette operated on the GEOTRACES Arctic cruise (GN01) on USCGC Healy from August to October 2015.

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Archival Copy

Version Date	Archive	Persistent Identifier	Date Assigned
2022-12-15	Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)	10.26008/1912/bco-dmo.700817.2	2022-12-15

Description

CTD profile data using the GEOTRACES ODF system, GEOTRACES-Arctic cruise HLY1502.
20160310CCHSIOSEE

Methods & Sampling

Note there were three separate rosette/CTD systems used on HLY1502. The GOSHIP rosette (coded GS in the event log) was also used for the Ra/Th/pigments profiles after station 10. There was a separate rosette that was loaded with 12 30-liter Niskins, but we only used that until station 10 (and once again at station 26). The GEOTRACES cruise report (PDF) mentions this, but does not provide detailed sensor information.

Data Processing Description

BCO-DMO Processing:
- added conventional header with dataset name; PI name; version date
- added cruise_id column plus information from headers: EXPOCODE, SECT_ID, STNNBR, CASTNO, GEOTRC_EVENTNO, DATE, TIME, LATITUDE, LONGITUDE, BTMDEPTH, INSTRUMENT_ID
- added column ISO_DateTime_UTC, calculated from Date and Time columns.
- 2022-12-15: made the CDOMF and CDOMF_FLAG_W columns public (were previously hidden)

Version History:
2017-05-22 (v1) - dataset made available from BCO-DMO; considered validated/final
2022-12-15 (v2) - CDOMF and CDOMF_FLAG_W made public.

Data Files

File
CTD_profiles_ODF_v2017_05_22_CDOM.csv (Comma Separated Values (.csv), 30.69 MB) MD5:e3c4d018a61277229602e3a6aff316e8 Primary data file for dataset ID 700817

Supplemental Files

File
ARC01 (HLY1502, GN01) cruise report filename: ARC01-report.pdf (Portable Document Format (.pdf), 4.02 MB) MD5:371276af63d6b2d7f9127446e3b2c66e U.S. Arctic GEOTRACES cruise report
HLY1502 PAR sensor calibration sheet filename: HLY1502_PAR_QCP2300HP-70444-1506.pdf (Portable Document Format (.pdf), 942.50 KB) MD5:255fcef28120415eb1f00ec3c2d70494 PAR sensor calibration sheet for HLY1502 CTD ODF profile data.

More Information about this dataset

Funding Sources

Funding Source	Award Number
NSF Division of Ocean Sciences	OCE-1355833
NSF Division of Ocean Sciences	OCE-1355913
NSF Division of Ocean Sciences	OCE-1356008
NSF Division of Ocean Sciences	OCE-1455924

Deployments

Deployment	Synonyms	Start Date	Platform	Investigator
HLY1502	GN01 U.S. GEOTRACES Arctic 32H120150809	2015-08-09	USCGC Healy	David C. Kadko (Chief Scientist) William M. Landing (Co-Chief Scientist)	data info

Instruments

CTD Sea-Bird SBE 911plus

Supplied Name:

Supplied Description:

The system included Seabird carousel/CTD with 12-place 30L Niskin bottles (coded 30-ODF in event log) and a 36-place 10L Niskin bottles (coded Ra/Th/pigments in event log). The PAR calibration sheet is available (pdf)

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_id	Cruise identification	unitless	cruise_id
EXPOCODE	expedition code assigned by the CCHDO: NODCShipCodeYearMonthDay	unitless	cruise_name
SECT_ID	cruise section identification number	unitless	cruise_name
GEOTRC_EVENTNO	GEOTRACES Event Number	unitless	event
STNNBR	Station Number	unitless	station
CASTNO	Cast Number	unitless	cast
DATE	Station Date (GMT) in format YYYYMMDD	unitless	date
TIME	Station Time (GMT) in format HHMM	unitless	time
LATITUDE	Station Latitude (South is negative)	decimal degrees	lat
LONGITUDE	Station Longitude (West is negative)	decimal degrees	lon
BTMDEPTH	Multibeam bottom depth of the cast	meters	depth_w
INSTRUMENT_ID	Instrument Id (from CTD profile data headers)	unitless	instrument
CTDPRS	CTD Pressure	decibars (DBARS)	press
CTDPRS_FLAG_W	CTD pressure quality flag (see WOCE Hydrographic Program Quality Flags)	unitless	flag
CTDTMP	CTD Temperature; ITS-90	degrees Celsius	temp
CTDTMP_FLAG_W	CTD temperature quality flag (see WOCE Hydrographic Program Quality Flags)	unitless	flag
CTDSAL	CTD Salinity	PSS-78	sal
CTDSAL_FLAG_W	CTD salinity quality flag (see WOCE Hydrographic Program Quality Flags)	unitless	flag
CTDOXY	CTD Oxygen	UMOL/KG	O2
CTDOXY_FLAG_W	CTD oxygen quality flag(see WOCE Hydrographic Program Quality Flags)	unitless	flag
XMISS	Light Transmission (0-5VDC)	volts	trans_v
XMISS_FLAG_W	Light Transmission quality flag (see WOCE Hydrographic Program Quality Flags)	unitless	flag
FLUOR	Fluorescence (0-5VDC)	volts	fluor
FLUOR_FLAG_W	Fluorescence quality flag (see WOCE Hydrographic Program Quality Flags)	unitless	flag
CDOMF	CDOM sensor units in volts (range 0-5V)	volts	CDOM
CDOMF_FLAG_W	CDOMF flag (see WOCE Hydrographic Program Quality Flags)	unitless	flag
PAR	Photosynthetically Available [Active] Radiation; downwelling irradiance. PAR sensor calibration sheet (pdf)	volts	PAR
PAR_FLAG_W	PAR quality flag (see WOCE Hydrographic Program Quality Flags)	unitless	flag
CTDNOBS	CTD Number of Observations	unitless	numb_obs
CTDETIME	CTD Elapsed Time	SECONDS	time_elapsed
ISO_DateTime_UTC	Date/Time (UTC) in ISO 8601 format: YYYY-MM-DDTHH:MM:SS[.xx]Z	unitless	ISO_DateTime_UTC
TIMESTAMP	Timestamp/version of data file provided to BCO-DMO	unitless	dataset_id
PREVIOUS_TIMESTAMP	Timestamp/version of data file provided to BCO-DMO		dataset_id

Status message

Database

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Dataset: GN01 CTD - ODF Profiles