Dataset: Jason Dive Log - Loihi
Deployment: TN293

Log of Jason Dives from cruise TN293 at the Loihi Seamount in March 2013

Chief Scientist:

Craig L. Moyer (Western Washington University, WWU)

BCO-DMO Data Manager:

Shannon Rauch (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Project:

Ecology of microbial mats at seamount associated Fe-rich hydrothermal vent systems (Ecology of Vent Mats)

Current State:

Final no updates expected

Version:

26 Sept 2016

Deployment Synonyms:

Loihi 2013

Version Date:

2016-09-26

Data URL:

https://www.bco-dmo.org/dataset-deployment/659748/data

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Description

This dataset provides metadata for all significant sample collections on the deployment, TN293. Date and time are in GMT. Location coordinates are based on the nav that the Jason team places before deployment (GPS coordinates are available through the virtual van website at http://4dgeo.whoi.edu/webdata/virtualvan/html/VV-tn293/index.html)

Methods & Sampling

Dataset acquisition description

Data Processing Description

Dataset Processing Description

More information about this dataset deployment

Funding

Award Number	Funding Source
OCE-1155290	NSF Division of Ocean Sciences
OCE-1155754	NSF Division of Ocean Sciences
OCE-1155756	NSF Division of Ocean Sciences

Instruments

ROV Jason

Supplied Name:

Supplied Description:

Instrument Type

Generic Name: ROV Jason

Generic Description:

The Remotely Operated Vehicle (ROV) Jason is operated by the Deep Submergence Laboratory (DSL) at Woods Hole Oceanographic Institution (WHOI). WHOI engineers and scientists designed and built the ROV Jason to give scientists access to the seafloor that didn't require them leaving the deck of the ship. Jason is a two-body ROV system. A 10-kilometer (6-mile) fiber-optic cable delivers electrical power and commands from the ship through Medea and down to Jason, which then returns data and live video imagery. Medea serves as a shock absorber, buffering Jason from the movements of the ship, while providing lighting and a bird’s eye view of the ROV during seafloor operations. During each dive (deployment of the ROV), Jason pilots and scientists work from a control room on the ship to monitor Jason’s instruments and video while maneuvering the vehicle and optionally performing a variety of sampling activities. Jason is equipped with sonar imagers, water samplers, video and still cameras, and lighting gear. Jason’s manipulator arms collect samples of rock, sediment, or marine life and place them in the vehicle’s basket or on "elevator" platforms that float heavier loads to the surface. More information is available from the operator site at URL.

Parameters

Supplied Name	Supplied description	Supplied Units	Standard Name
ISO_DateTime_UTC	Date and time of collection, formatted to the ISO 8601 standard (YYYY-mm-ddTHH:MM:SS.xxZ where T indicates the start of the time string). BCO-DMO generated values in this columns using the date and time columns in the original data file.	unitless	ISO_DateTime_UTC
dive	Dive identification number	unitless	dive_id
location	Location of collection	unitless	site
x	x component of the location coordinates; location coordinates are based on the nav that the Jason team places before deployment. x, y, z, and heading are all based on the NAV net that Jason personnel deploy prior to the cruise. They convert these to GPS coordinates, but do a reanalysis of nav (re-nav) at the end of the dive. For GPS coordinates, see the virtual van website: http://4dgeo.whoi.edu/webdata/virtualvan/html/VV-tn293/index.html	unitless	xpos
y	y component of the location coordinates; location coordinates are based on the nav that the Jason team places before deployment. x, y, z, and heading are all based on the NAV net that Jason personnel deploy prior to the cruise. They convert these to GPS coordinates, but do a reanalysis of nav (re-nav) at the end of the dive. For GPS coordinates, see the virtual van website: http://4dgeo.whoi.edu/webdata/virtualvan/html/VV-tn293/index.html	unitless	ypos
z	z component of the location coordinates; location coordinates are based on the nav that the Jason team places before deployment. x, y, z, and heading are all based on the NAV net that Jason personnel deploy prior to the cruise. They convert these to GPS coordinates, but do a reanalysis of nav (re-nav) at the end of the dive. For GPS coordinates, see the virtual van website: http://4dgeo.whoi.edu/webdata/virtualvan/html/VV-tn293/index.html	unitless	no_bcodmo_term
heading	Heading. x, y, z, and heading are all based on the NAV net that Jason personnel deploy prior to the cruise. They convert these to GPS coordinates, but do a reanalysis of nav (re-nav) at the end of the dive. For GPS coordinates, see the virtual van website: http://4dgeo.whoi.edu/webdata/virtualvan/html/VV-tn293/index.html	degrees	head_vehicle
depth	Depth	meters (m)	depth
sample_name	Sample name	unitless	sample
sample_type	Sample type: Temp probe = Jason high temperature probe. Echem = Cyclic voltammetry electrochemistry wand for in situ chemistry measurements. BMS = BM = Biomat syringe sampler for fine scale microbial mat sampling. Major = Major Ti-samplers for collection of discrete high temperature venting fluids. Gas = Gas sampler for collecting gasses from venting fluids. MTR = Miniature temperature recorder, placed in vent fluids and collected at a later time to download long-term temperature data. Slide Trap = Sampler with glass slides installed to allow for colonization by microbes and immediate visualization onboard. SIO Charges = Colonization chambers. Scoop = Contained sampler with ball valve on end to prevent turbulent flow. Nanostick = Stick sampler for long term deployment and chemical analysis. PVC = Grid for deployment at mat removal site. Slurp = Suction Sample = Suction sample hose for collecting large microbial mat samples. Micromanipulator = Manipulate EChem probe on a micron scale to collect profiles through mats. Baby Suck = Single syringe BMS sampler for collection of biomat. Photo document = Imaging of mat sites. Photo Mosaic = Downward-looking photography for stitching for large scale vent mapping. Rock = Collection of rocks for examination of microbial colonizers	unitless	sample_type
sample_details	Sample details/notes	unitless	sample_descrip

Database

Contribute Data

Dataset: Jason Dive Log - Loihi
Deployment: TN293

Dataset acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: Jason Dive Log - LoihiDeployment: TN293

Dataset acquisition description

Dataset Processing Description

Dataset: Jason Dive Log - Loihi
Deployment: TN293