Dataset: LOPC
Deployment: PE08-54

LOPC data: microplankton size spectra from 0.1 to 35 mm

Principal Investigator:

Daniel Kamykowski (North Carolina State University - Marine, Earth and Atmospheric Sciences, NCSU MEAS)

Co-Principal Investigator:

John M. Morrison (University of North Carolina - Wilmington, UNC-Wilmington)

Carrie Thomas (North Carolina State University - Marine, Earth and Atmospheric Sciences, NCSU MEAS)

BCO-DMO Data Manager:

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

Project:

Benthic Dinoflagellate Migration: Occurrence and Processes (BenDiM)

Current State:

Final no updates expected

Deployment Synonyms:

BenDiM1

Version Date:

2012-12-12

Data URL:

https://osprey.bco-dmo.org/dataset-deployment/455536/data

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Description

Data consists of particle counts and sizes from 0.1 mm to 35 mm measured using a Brooke Ocean Technology Laser Optical Plankton Counter (LOPC). The LOPC was deployed on a CTD during a cross-shelf transect.

Related references:

Laser Optical Plankton Counter Operation and Maintenance Manual. 2010. Brooke Ocean Technology (www.brooke-ocean.com).

Herman AW. LOPC post-processing page: http://www.alexherman.com/lopc_post.php. Contains software designed to enable first-time users of the LOPC to process data.

Herman AW, M Harvey. 2006. Application of normalized biomass size spectra to laser optical plankton counter net intercomparisons of zooplankton distributions. Journal of Geophysical Research-Oceans. 111(C5): C05S05.

Herman AW, B Beanlands, EF Phillips. 2004. The next generation of Optical Plankton Counter: the Laser-OPC. Journal of Plankton Research. 26(10): 1135-1145.

Methods & Sampling

Dataset acquisition description

Underway SeaSciences Acrobat surveys with the instrument package undulating through the water column between the 25-60 m isobaths provided near-surface to near-bottom (5-10 m off bottom inside the 40 m isobath and 10-20 m off bottom beyond the 40 m isobath) surveys.

Data Processing Description

Dataset Processing Description

Setup and Calibration Information for Acrobat TUV:
BenDiM1/PE08-54
BenDiM2/PE09-12
BenDiM3/PE10-01

More information about this dataset deployment

Funding

Award Number	Funding Source
OCE-0726271	NSF Division of Ocean Sciences

Instruments

Laser Optical Plankton Counter

Supplied Description:

A Brooke-Ocean Laser Optical Plankton Counter (LOPC) for plankton size spectra from 0.1 mm to 35 mm was deployed for and underway SeaSciences Acrobat surveys with the instrument package undulating through the water column between the 25-60 m isobaths provided near-surface to near-bottom (5-10 m off bottom inside the 40 m isobath and 10-20 m off bottom beyond the 40 m isobath) surveys.

Instrument Type

Generic Name: Laser Optical Plankton Counter

Acronym: LOPC

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/352/

Generic Description:

Laser Optical Plankton Counter (LOPC)

towed undulating vehicle

Supplied Description:

SeaSciences Acrobat is a towed undulated vehicle (TUV) carrying an instrument package.

Cross-shelf survey were obtained using a SeaBird CTD package instrumented with SeaBird temperature, salinity, and dissolved oxygen sensors; SeaPoint chlorophyll and CDOM fluorescence and turbidity sensors; and a Brooke-Ocean Laser Optical Plankton Counter (LOPC) for plankton size spectra from 0.1 mm to 35 mm.

Instrument Type

Generic Name: towed undulating vehicle

Acronym: TUV

Generic Description:

A towed undulating vehicle is a generic class of instruments. See the data set specific information for a detailed description. These are often prototype instrument packages designed to make very specific measurements.

Parameters

Supplied Name	Supplied description	Supplied Units	Standard Name
time_elapsed	Elapsed time since start of tow	seconds	time_elapsed
distance	distance from start of tow	km	no_bcodmo_term
lat	latitude; North is positive	decimal degrees	lat
lon	longitude; East is positive	decimal degrees	lon
depth	depth	meters	depth
press	pressure	decibars	press
temp	temperature	degrees Celsius	temp
potemp	potential temperature	degrees Celsius	potemp
cond	conductivity	Siemens/meter	cond
sal	salinity	dimensionless	sal
sigma_0	potential density; sigma-theta	dimensionless	sigma_0
O2	dissolved oxygen	milliliters/liter	O2
O2_sat_pcnt	saturation of oxygen	%	O2_sat_pcnt
turbidity	Turbidity is the cloudiness or haziness of a fluid caused by individual particles. Formazin Turbidity Units (FTU). ISO refers to its units as FNU (Formazin Nephelometric Units)	FTU	turbidity
chla	chlorophyll	micrograms/liter	chl_a
CDOM	Colored dissolved organic matter (CDOM): The optically measurable component of the dissolved organic matter in water	micrograms/liter	CDOM
biomass	sum of biovolumes across all the size ranges	micrometers/m^3	wet_weight_biomass
vol_x_y_um	volume of particles in the size range from x to y calculated from the estimated spherical diameter (ESD)	micrometers/m^3	no_bcodmo_term

Database

Contribute Data

Dataset: LOPC
Deployment: PE08-54

Dataset acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: LOPCDeployment: PE08-54

Dataset acquisition description

Dataset Processing Description

Dataset: LOPC
Deployment: PE08-54