Dataset: alongtrack_lmg0602
Deployment: LMG0602

Data collected daily along the ship track in JGOFS format from LMG0602

Chief Scientist:

Dr Laurence P. Madin (Woods Hole Oceanographic Institution, WHOI)

Co-Principal Investigator:

Dr Patricia Kremer (University of Connecticut, UConn)

BCO-DMO Data Manager:

Ms Dicky Allison (Woods Hole Oceanographic Institution, WHOI)

Project:

Salpa Thompsoni in the Southern Ocean: Bioenergetics, Population Dynamics and Biogeochemical Impact (SouthernSalps)

Current State:

Final no updates expected

Version:

03 August 2012

Version Date:

2012-08-03

Data URL:

https://www.bco-dmo.org/dataset-deployment/452259/data

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Description

Data collected daily along the ship track in JGOFS format from the LMG0602 cruise.

Methods & Sampling

Dataset acquisition description

A single file was produced each day containing columnar fields in text format. The JGOFS data format is obtained primarily by applying calibrations to raw data and decimating to whole minute intervals. Several fields are derived measurements from more than one raw input.

Data Processing Description

Dataset Processing Description

Parameter names were modified to conform with BCO-DMO conventions.

More information about this dataset deployment

Funding

Award Number	Funding Source
ANT-0338090	NSF Antarctic Sciences

Instruments

Barometer

Supplied Description:

Barometer model: R.M. Young 61201.

Instrument Type

Generic Name: Barometer

Community Identifier: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0281/

Generic Description:

A barometer is an instrument used to measure atmospheric pressure. There are many types of barometers identified by make and model and method of measurement.

Gyro

Supplied Description:

Anschutz Gyro.

Instrument Type

Generic Name: Gyro

Community Identifier: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0079/

Generic Description:

Compass with a motorized gyroscope that tracks true north (heading).

Knudsen 320 BR deepwater echosounder

Supplied Description:

Model: Knudsen 320B/R

Instrument Type

Generic Name: Knudsen 320 BR deepwater echosounder

Acronym: Knudsen 320

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/156/

Generic Description:

The Knudsen 320 B/R deepwater echosounder is a digital data logging system used to measure water depth (e.g. depth of the seafloor). The system is configured to work with different frequency transducers. For example, the Edo 323 B is a 12 kHz High Frequency (HF) transducer or it can be configured to work with an array of 3.5 kHz Low Frequency (LF) transducers mounted in the hull of a vessel.

Photosynthetically Available Radiation Sensor

Supplied Description:

Mast PAR sensor model: BSI QSR-240P

Instrument Type

Generic Name: Photosynthetically Available Radiation Sensor

Acronym: PAR sensor

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/122/

Generic Description:

A PAR sensor measures photosynthetically available (or active) radiation. The sensor measures photon flux density (photons per second per square meter) within the visible wavelength range (typically 400 to 700 nanometers). PAR gives an indication of the total energy available to plants for photosynthesis. This instrument name is used when specific type, make and model are not known.

Turner Designs Fluorometer 10-AU

Supplied Name: Turner Designs Fluorometer -10-AU

Supplied Description:

Fluorometer model: Turner 10-AU-005

Instrument Type

Generic Name: Turner Designs Fluorometer 10-AU

Acronym: Turner Fluorometer 10-AU

Community Identifier: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0393/

Generic Description:

The Turner Designs 10-AU Field Fluorometer is used to measure Chlorophyll fluorescence. The 10AU Fluorometer can be set up for continuous-flow monitoring or discrete sample analyses. A variety of compounds can be measured using application-specific optical filters available from the manufacturer. (read more from Turner Designs, turnerdesigns.com, Sunnyvale, CA, USA)

WET Labs {Sea-Bird WETLabs} C-Star transmissometer

Supplied Name: Wet Labs CSTAR Transmissometer

Supplied Description:

Transmissometer model: WET Labs C-Star 25 cm

Instrument Type

Generic Name: WET Labs {Sea-Bird WETLabs} C-Star transmissometer

Acronym: WL CSTAR Trans

Community Identifier: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0160/

Generic Description:

The C-Star transmissometer has a novel monolithic housing with a highly intgrated opto-electronic design to provide a low cost, compact solution for underwater measurements of beam transmittance. The C-Star is capable of free space measurements or flow-through sampling when used with a pump and optical flow tubes. The sensor can be used in profiling, moored, or underway applications. Available with a 6000 m depth rating.

More information on Sea-Bird website: https://www.seabird.com/c-star-transmissometer/product?id=60762467717

Parameters

Supplied Name	Supplied description	Supplied Units	Standard Name
cruiseid	Cruise id.	unitless	cruiseid
date_gmt	Month, day, year (GMT time) e.g. mar16 2006.	mon dd yyy	date_gmt
time_gmt	Time GMT, 24 hour clock, hours and decimal minutes.	HHMM.mm	time_gmt
lat	Latitude, negative = South	decimal degrees	lat
lon	Longitude, negative = West	decimal degrees	lon
sog	Ship's speed over ground.	knots	sog
hdop	Horizontal Dilution of Position is an indicator of the precision of the GPS measurement. The lower the number, the more precise the position.	unitless	no_bcodmo_term
head	The ship's heading, measured by the gyro.	Degrees (azimuth)	heading
cog	Course over ground.	Degrees(azimuth)	cog
par_d	Downwelled Photosynthetically Available Radiation 400-700nm (PAR), sensor package mounted on ship's science mast.	uE/m<sup>2</sup>/sec	PAR
temp_ss	Sea surface temperature	degrees C	SST
sal_ss	Sea surface salinity	PSU	sal_ss
depth_w	Depth of water.	meters	depth_w
wind_speed_c	Wind speed (true, corrected for ship motion)	meters/sec	wind_speed_c
wind_dir_c	Wind direction (true, corrected for ship motion)	degrees(azimuth)	wind_dir_c
temp_air	Ambient air temperature.	degrees C	temp_air
humidity	Relative humidity.	%	humidity
press_bar	Barometric pressure	milliBars	press_bar
flvolt	Sea surface fluorometer readings in voltages, (range 0-5 FSO).	volts	flvolt
radiation_l	long wave radiation, using a Precision Infrared Radiometer	watts/meters<sup>2</sup>	radiation_l
radiation_s	short wave radiation, using a Precision Spectral Pyranometer	watts/meters<sup>2</sup>	radiation_s
yrday_gmt	Jan. 1 = yrday 0. GMT day and decimal time, as 325.5 for the 326th day of the year, or November 22 at 1200 hours (noon).		yrday_gmt
year	4-digit year.	YYYY	year

Database

Contribute Data

Dataset: alongtrack_lmg0602
Deployment: LMG0602

Dataset acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: alongtrack_lmg0602Deployment: LMG0602

Dataset acquisition description

Dataset Processing Description

Dataset: alongtrack_lmg0602
Deployment: LMG0602