Dataset: mulvfs
Deployment: TT011

Multiple Unit Large Volume in situ Filtration System

Principal Investigator:

James K.B. Bishop (E.O. Lawrence Berkeley, LBNL)

BCO-DMO Data Manager:

Cynthia L. Chandler (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Project:

U.S. JGOFS Equatorial Pacific (EqPac)

Version:

December 7, 1998

Deployment Synonyms:

EqPac Fall Survey

Version Date:

1998-12-07

Data URL:

https://www.bco-dmo.org/dataset-deployment/450899/data

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Description

Multiple Unit Large Volume in situ Filtration System

Methods & Sampling

Dataset acquisition description

See Platform deployments for cruise specific documentation

Deployment-specific acquisition description

   PI:              James K. Bishop
   of:              University of Victoria
   dataset:         Multiple Unit Large Volume in situ Filtration System
                    (MULVFS) cast information/LaCie Optical Scanner results
   dates:           August 11, 1992 to September 14, 1992
   location:        N: 12.01  S: -11.8483  W: -141.3483  E: -134.9533
   project/cruise:  EQPAC/TT011 - Fall Survey
   ship:            Thomas Thompson
 
   Sampling and Analytical Protocol
   PI-Note
 
   Note: Optical density is a physically defined unit.  Calibration is via a KODAK
   photographic reference grey scale.  0.0 means white; 0.6 is a dark grey.
 
   Note: all times are given as local time (Z time -10 hrs)

Data Processing Description

Dataset Processing Description

More information about this dataset deployment

Instruments

Multiple Unit Large Volume Filtration System

Supplied Name: Multi Unit Large Volume Filtration System

Supplied Description:

MULVFS(Multiple Unit Large Volume in situ Filtration System) was used to collect water samples.

Instrument Type

Generic Name: Multiple Unit Large Volume Filtration System

Acronym: MULVFS

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/32/

Generic Description:

The Multiple Unit Large Volume Filtration System (MULVFS) was first described in Bishop et al., 1985 (doi: 10.1021/ba-1985-0209.ch009). The MULVFS consists of multiple (commonly 12) specialized particulate matter pumps, mounted in a frame and tethered to the ship by a cable (Bishop et al., 1985; Bishop and Wood, 2008). The MULVFS filters particulates from large volumes of seawater, although the exact protocols followed will vary for each project.

Parameters

Supplied Name	Supplied description	Supplied Units	Standard Name
event	event number from event log		event
sta	station number from event log		no_bcodmo_term
cast	MULVFS cast number		cast
data_rev	data revision date per Bishop	YYMMDD	no_bcodmo_term
date_begin	local date filtration began	YYMMDD	no_bcodmo_term
time_begin	local time at start of filtration	HHmm	no_bcodmo_term
lat_begin	latitude at time of start of filtration negative numbers south	decimal degrees	no_bcodmo_term
lon_begin	longitude at time of start of filtration negative numbers west	decimal degrees	no_bcodmo_term
depth	corrected depth averaged over cast	meters	depth
sample_no	originator assigned sample number		no_bcodmo_term
vol_filt	volume of seawater filtered (at in-situ pressure) liters		vol_filt
vol_adsorb	volume of seawater adsorbed by USC cartridges (see object thorium T.Ku data - TT011)	liters	no_bcodmo_term
od_grey	greater than 53um grey optical density	OD/m3	no_bcodmo_term
od_red	greater than 53um red optical density	OD/m3	no_bcodmo_term
od_blue	greater than 53um blue optical density	OD/m3	no_bcodmo_term
od_green	greater than 53um green optical density	OD/m3	no_bcodmo_term

Database

Contribute Data

Dataset: mulvfs
Deployment: TT011

Dataset acquisition description

Deployment-specific acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: mulvfsDeployment: TT011

Dataset acquisition description

Deployment-specific acquisition description

Dataset Processing Description

Dataset: mulvfs
Deployment: TT011