Dataset: CTD_Cokelet eco FOCI cruises

Name: CTDs from one cruise per year from the NE Pacific from multiple cruises in the Northeast Pacific, Coastal Gulf of Alaska from 2001-2004 (NEP project)
Published: 2012-06-18
Keywords: oceans

Cite This Dataset

Spatial Extent: N:60.0435 E:-137.2343 S:54.285 W:-157.1227

Project:

U.S. GLOBEC Northeast Pacific (NEP)

Program:

U.S. GLOBal ocean ECosystems dynamics (U.S. GLOBEC)

Principal Investigator:

Edward D. Cokelet (National Oceanic and Atmospheric Administration, NOAA-PMEL)

Version:

2012-06-18

Version Date:

2012-06-18

Validated:

Yes

Current State:

Final no updates expected

CTDs from one cruise per year from the NE Pacific from multiple cruises in the Northeast Pacific, Coastal Gulf of Alaska from 2001-2004 (NEP project)

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Archival Copy

Version Date	Archive	Persistent Identifier	Date Assigned
2012-06-18	National Oceanographic Data Center (NODC)	0113921	2013-10-27

Description

These data were collected as part of the Northeast Pacific, Coastal Gulf of Alaska GLOBEC program by NOAA/PMEL/EcoFOCI from 2001-2004. E.D.Cokelet was the PI spearheading the collection of this data set. Data from one cruise per year are included in this CTD data set.

Methods & Sampling

CTD casts from surface to near-bottom were collected using a Sea-Bird SBE 25 CTD, Sea-Bird SBE 19 Seacat CTD, or Sea-Bird SBE 911plus Seacat CTD (see dataset-deployment metadata for specific model used on each cruise). Salinity samples were analyzed on shore with an AutoSal, and corrections were applied to the CTD-measured salinities. Chlorophyll-a was inferred from fluorescence by a linear least-squares fit of laboratory-measured chlorophyll extracted from water-bottle samples versus fluorescence measured at the same depth and time.

Data Processing Description

BCO-DMO re-formatted the data in June 2012: original 'yrday_special' was removed and 'yrday_gmt' was calculated and added; month_gmt, day_gmt, and time_gmt were also added; Cruises GP0401 and GP0207 (also known as GP0201) were separated into 2 legs each.

Data Files

File
ecofoci_ctd.csv (Comma Separated Values (.csv), 7.37 MB) MD5:0121daf5fe7924fc754cac06bcfb6f3d Primary data file for dataset ID 3098

More Information about this dataset

Funding Sources

Funding Source	Award Number
NSF Division of Ocean Sciences	OCE-0109078

Deployments

Deployment	Synonyms	Start Date	Platform	Investigator
GP0108	GP0101	2001-07-17	F/V Great Pacific	Edward V. Farley (Chief Scientist)	data info
GP0207-01	GP0201	2002-07-11	F/V Great Pacific	Edward D. Cokelet (Chief Scientist)	data info
GP0207-02	GP0201	2002-07-28	F/V Great Pacific	Chris Kondzela (Chief Scientist)	data info
GP0401-01		2004-10-17	F/V Great Pacific	Jamal Hasan Moss (Chief Scientist)	data info
GP0401-02		2004-11-01	F/V Great Pacific	Edward D. Cokelet (Chief Scientist)	data info
MF0310		2003-07-18	R/V Miller Freeman	Edward D. Cokelet (Chief Scientist)	data info

Instruments

CTD Sea-Bird

Supplied Description:

Instrument Type

Generic Name: CTD Sea-Bird

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

Generic Description:

Conductivity, Temperature, Depth (CTD) sensor package from SeaBird Electronics, no specific unit identified. This instrument designation is used when specific make and model are not known. See also other SeaBird instruments listed under CTD. 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
cast	CTD cast number.	dimensionless	cast
lon	Longitude; positive values = East.	decimal degrees	lon
lat	Latitude; positive values = North.	decimal degrees	lat
depth_w	Bottom depth.	meters	depth_w
press	Pressure.	decibars	press
temp	Temperature	degrees Celsius	temp
sal	Salinity	PSU	sal
fluor	Fluorescence.	micrograms/l	fluor
chl_a	Chlorophyll	micrograms/l	chl_a
sigma_t	Sigma_t density.	kg/m^3	sigma_t
yrday_gmt	Yearday, GMT.	dimensionless	yrday
cruiseid	Identifier of the cruise.	dimensionless	cruiseid
year	Four-digit year.	dimensionless	year
month_gmt	Month of the year (01 to 12), GMT.	dimensionless	month_gmt
day_gmt	Day of the month (01 to 31), GMT.	dimensionless	day_gmt
time_gmt	Time in hours, minutes, and decimal minutes (HHMM.ss); GMT.	dimensionless	time_gmt

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Database

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Dataset: CTD_Cokelet eco FOCI cruises