Dataset: BMP2-vpr ess
Deployment: NBP0103

BiomaperII environmental data from VPR data stream

Principal Investigator:

Carin J. Ashjian (Woods Hole Oceanographic Institution, WHOI)

BCO-DMO Data Manager:

Ms Dicky Allison (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Project:

GLOBEC: Winter Distribution and Success of Southern Ocean Krill (Southern Ocean Krill)

U.S. GLOBEC Southern Ocean (SOGLOBEC)

Deployment Synonyms:

GLOBECI

Coordinated Deployments:

LMG0104

Data URL:

https://osprey.bco-dmo.org/dataset-deployment/450312/data

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Description

BiomaperII Environmental data coincident with VPR data

These data are from the Environmental Sensing System (ESS) a component of the BIO-Optical Multi-frequency Acoustical and Physical Environmental Recorder (BIOMAPER II)¹ data acquisition system.

BIOMAPERII is a towed package consisting of a number of independent observational components: a multi-frequency sonar (Acoustics) system, a video plankton recorder (VPR) system, and an environmental sensor system (ESS). The incoming ESS environmental data is split into two data streams, one to be merged with the VPR data and one to be merged with the Acoustics data. There are times when either the Acoustic or VPR systems may be turned off. Thus, there is a independent ESS data set to support the Acoustic or VPR data streams.

These are the ESS environmental data from the VPR data stream.

¹Wiebe, P.H., et al., 2002, BIOMAPER-II: An Integrated Instrument Platform for Coupled Biological and Physical Measurements in Coastal and Oceanic Regimes. IEEE Journal of Oceanic Engineering, 27(3):700-716.

These data are preliminary. Large outliers in the data have been removed. No comparison has been made with the data reported from the vertical CTD or water bottle stations. The depth data are very noisy because the instrument was sending out lots of spurious information and there has been no attempt to smooth it.

Any questions, contact:
Carin Ashjian, Associate Scientist
Woods Hole Oceanographic Institution
Woods Hole, MA 02543
voice: (508) 289-3457
fax: (508) 457-2169
e-mail: cashjian@whoi.edu

last updated April 20, 2006

Methods & Sampling

Dataset acquisition description

These data are from the Environmental Sensing System (ESS) a component of the BIO -Optical Multi-frequency Acoustical and Physical Environmental Recorder (BIOMAPER II)1 data acquisition system.

Deployment-specific acquisition description

These data are from the Environmental Sensing System (ESS) a component of the BIO -Optical Multi-frequency Acoustical and Physical Environmental Recorder (BIOMAPER II)1 data acquisition system.

BIOMAPERII is a towed package consisting of a number of independent observational components: a
multi-frequency sonar (Acoustics) system, a video plankton recorder (VPR) system, and an environmental sensor
system (ESS). The incoming ESS environmental data is split into two data streams, one to be merged with
the VPR data and one to be merged with the Acoustics data. There are times when either
the Acoustic or VPR systems may be turned off. Thus, there is a independent ESS data set to support the
Acoustic or VPR data streams.

These data are preliminary. Large outliers in the data have been removed. No comparison has been made with the
data reported from the vertical CTD or water bottle stations. The depth data are very noisy because the instrument
was sending out lots of spurious information and there has been no attempt to smooth it.

Data Processing Description

Dataset Processing Description

More information about this dataset deployment

Funding

Award Number	Funding Source
ANT-9910307	NSF Antarctic Sciences

Instruments

BIo-Optical Multi-frequency Acoustical and Physical Environmental Recorder II

Supplied Description:

BIOMAPERII is a towed package consisting of a number of independent observational components

Instrument Type

Generic Name: BIo-Optical Multi-frequency Acoustical and Physical Environmental Recorder II

Acronym: BIOMAPERII

Community Identifier: http://vocab.nerc.ac.uk/collection/L22/current/NETT0007/

Generic Description:

BIOMAPER II is a set of sensors on a long aluminum frame that resembles the tail of a World War II airplane. A research vessel tows the instrument through the water on a specialized tow cable that sends power to the sensors and brings data back to the ship. People use BIOMAPER II to learn about phytoplankton and zooplankton over areas that are too large to study with the traditional net-and-microscope method. Whereas nets can sample areas up to about 5 meters (16 feet) on a side, BIOMAPER II can record data from 500 meters (1,640 feet) or more of the water column at a time. The instrument's standard suite of sensors were chosen for studying plankton: a five-frequency sonar system, a video plankton recorder and an environmental sensor system (ESS, like the one on MOCNESS). The ESS measures water temperature, salinity, oxygen, chlorophyll and light levels. BIOMAPER II also has room for attaching other instruments for specific uses. The instrument's official name is BIOMAPER-II: the BIo-Optical Multi-frequency Acoustical and Physical Environmental Recorder. The Roman numeral II indicates that it's a redesign of the original BIOMAPER, a prototype that was invented and tested in the mid 1990s. (more information).

Parameters

Supplied Name	Supplied description	Supplied Units	Standard Name
cruiseid	cruise identification		cruiseid
year	year, i.e. 2001, GMT		year
yrday0_gmt	Year day where Jan 1 = year day 0, GMT	YYY.Y	yrday0_gmt
month_gmt	month of year, GMT, i.e. 01-12		month_gmt
day_gmt	day of month, GMT, i.e. 01-31		day_gmt
time_gmt	time of day, GMT	HHmm.m	time_gmt
lat	latitude, negative = South	degrees	lat
lon	longitude, negative = West	degrees	lon
press	depth of sample/data point, reported as pressure	decibars	press
potemp	potential temperature	deg.C	potemp
sal	salinity, PSS	dimensionless	sal
sigma_0	potental density (sigma theta)	kg/m<sup>3</sup>	sigma_0
flvolt	fluorescence (volts 0-5)	volts	flvolt
light_trans	light transmission, reported as volts	volts	trans_v
depth_w	water depth in meters	meters	depth_w

Database

Contribute Data

Dataset: BMP2-vpr ess
Deployment: NBP0103

BiomaperII Environmental data coincident with VPR data

Dataset acquisition description

Deployment-specific acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: BMP2-vpr essDeployment: NBP0103

BiomaperII Environmental data coincident with VPR data

Dataset acquisition description

Deployment-specific acquisition description

Dataset Processing Description

Dataset: BMP2-vpr ess
Deployment: NBP0103