Dataset: GT11 - Cruise Event Log
Deployment: KN204-01

GT11 (KN204-01) scientific sampling event log.

Chief Scientist:

Edward A. Boyle (Massachusetts Institute of Technology, MIT-EAPS)

Co-Chief Scientist:

Gregory A. Cutter (Old Dominion University, ODU)

BCO-DMO Data Manager:

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

Project:

U.S. GEOTRACES North Atlantic Transect (GA03) (U.S. GEOTRACES NAT)

Current State:

Final no updates expected

Version:

25 Jan 2013

Deployment Synonyms:

GA03, GT11, KN204-01A, KN204-01B, USGT-NAT-2011, USGNAZT, GNAT, 316N20111106, KN204-1

Version Date:

2013-01-25

Data URL:

https://www.bco-dmo.org/dataset-deployment/455700/data

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Description

Log of sampling events from the 2011 GEOTRACES cruise (GT11 / KN204-01), includes description of events at each station, lat/lon, date/time, and sample numbers.

Methods & Sampling

Dataset acquisition description

Spreadsheet of events generated aboard vessel by the science party. The following code lists were used.

Event Description Codes:
nd = unknown/not entered
GT-C = GEOTRACES carousel
30-ODF = 30L Niskin Rosette
Stn-GeoF = GeoFish Station sampling; misc samples
GeoF = GeoFish TM dissolved; Nuts; As
mid-GeoF = GeoFish TM diss/uf; Nuts; nanoNuts; As; Alk Phosphatase
Super-GeoF = GeoFishTM diss/uf; Nuts; NanoNuts; As; Alk Phos; Se; WML; A. Shiller
RaPUW = Radium UW pump
MITv2 = MIT-vane
UAFv = UAF-vane
KnoR = Knorr rosette
MastUp = NASA solar reference mast UP
MastDown = NASA solar reference mast DOWN
McL-Ros = McLane pump rosette
McL-Prof = McLane pump profile
Aeros = Aerosol sampler
AOP = Apparent Optical Properties cast
NASAsurf = NASA surface pump water sample
NEMO = NEMO Float Deployment
Ra/Th/Pig = Ra/Th/Pigment Niskin Cast
Surf Ra bag = Surface Ra bag
Rain = Rain sample

Sample Codes:
nd = unknown/not recorded
diss = dissolved samples
diss+part = dissolved and particulate samples
unfilt = unfiltered seawater
filter = filter for particulates
none = none

Data Processing Description

Dataset Processing Description

BCO-DMO made the following modifications to the formatting of the data:
- Blank cells were replaced with 'nd' to indicate 'no data'.
- Parameter names were modified to conform with BCO-DMO naming conventions.
- lat and lon were converted from degrees and decimal minutes to decimal degrees.
- time_start and time_end were reformatted from HH:MM to HHMM.
- Commas in text fields were replaced with semi-colons.
- Original date fields separated into year, month, and day.

Additional corrections made by BCO-DMO:
- Corrected lat value of event #3034 from 32.67 to 38.67 based on GTC castsheet.
- Added station number to event #3112 (had been missing). Confirmed by GTC castsheet.
- Changed sample number for event #3123 from 'nd' to 7245. Confirmed by aerosol data from C. Lamborg and W. Landing.
- Corrected start and end dates of event #3203 from 12/01/11 to 12/02/11 based on rain data from William Landing.
- Corrected location of event #3219 from transit to station 10 to transit to station 20.
- Changed end time of event #3217 from 0000 to nd.
- Corrected lon value of event #3228 from -25.87 to -35.87 based on aerosol data from William Landing.

More information about this dataset deployment

Funding

Award Number	Funding Source
OCE-0926092	NSF Division of Ocean Sciences
OCE-0926204	NSF Division of Ocean Sciences
OCE-0926423	NSF Division of Ocean Sciences

Instruments

None available yet

Parameters

Supplied Name	Supplied description	Supplied Units	Standard Name
event	Unique event number.	integer	event
location	Location descriptor (typically station ID).	text	site
time_start	Start time (GMT); 24-hour clock.	HHMM	time_start
time_end	End time (GMT); 24-hour clock.	HHMM	time_end
lat	Latitude (South is negative).	decimal degrees	lat
lon	Longitude (West is negative).	decimal degrees	lon
depth_min	Minimum depth.	meters	depth_min
depth_max	Maximum depth.	meters	depth_max
event_description	Description of sampling event. See 'Acquisition Description' for event code definitions.	text	ev_type
samples_taken	Samples taken. See 'Acquisition Description' for sample code definitions.	text	sample_descrip
GEO_sample_id_range	Range of GEOTRACES ID numbers.	text	sample
comment	Free-text comments about the event.	text	comment
cruise_id	Official cruise identifier.	text	cruise_id
year	4-digit year of the cruise. in the format YYYY	unitless	year
month_start	2-digit month at start of event (GMT).	mm (01 to 12)	month_start
day_start	2-digit day of the month at start of event (GMT).	dd (01 to 31)	day_start
month_end	2-digit month at end of event (GMT).	mm (01 to 12)	month_end
day_end	2-digit day of the month at end of event (GMT).	dd (01 to 31)	day_end

Database

Contribute Data

Dataset: GT11 - Cruise Event Log
Deployment: KN204-01

Dataset acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: GT11 - Cruise Event LogDeployment: KN204-01

Dataset acquisition description

Dataset Processing Description

Dataset: GT11 - Cruise Event Log
Deployment: KN204-01