Dataset: TI729 eventlog

Name: Event log for R/V Tioga TI729 in the Gulf of Maine from January 2014 (Gulf of Maine Pteropods project)
Published: 2015-08-03
Keywords: oceans

Cite This Dataset

Spatial Extent: N:42.3748 E:-69.5732 S:42.048205 W:-70.181895

Project:

Seasonal and Ontogenetic Effects of Ocean Acidification on Pteropods in the Gulf of Maine (Gulf of Maine Pteropods)

Program:

Science, Engineering and Education for Sustainability NSF-Wide Investment (SEES): Ocean Acidification (formerly CRI-OA) (SEES-OA)

Principal Investigator:

Amy Maas (Woods Hole Oceanographic Institution, WHOI)

BCO-DMO Data Manager:

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

Version:

Version Date:

2015-08-03

Validated:

Yes

Current State:

Final no updates expected

Event log for R/V Tioga TI729 in the Gulf of Maine from January 2014 (Gulf of Maine Pteropods project)

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Description

version 2015-08-03 replaced version 2014-04-09. Several lat/lon positions were corrected.

Data Files

File
TI729_eventlog.csv (Comma Separated Values (.csv), 4.76 KB) MD5:2a08c70dcfa4ef0e578027cf9346ea78 Primary data file for dataset ID 506262

More Information about this dataset

Funding Sources

Funding Source	Award Number
NSF Division of Ocean Sciences	OCE-1316040

Deployments

Deployment	Synonyms	Start Date	Platform	Investigator
TI729		2014-01-29	R/V Tioga	Amy Maas (Chief Scientist)	data info

Instruments

CTD - profiler

Supplied Name: CTD

Supplied Description:

The R/V Tioga CTD rosette had a16 bottle rosette with 3-L Niskins, and a SBE3/SBR4 sensor set.

Instrument Type

Generic Name: CTD - profiler

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/130/

Generic Description:

The Conductivity, Temperature, Depth (CTD) unit is an integrated instrument package designed to measure the conductivity, temperature, and pressure (depth) of the water column. The instrument is lowered via cable through the water column. It permits scientists to observe the physical properties in real-time via a conducting cable, which is typically connected to a CTD to a deck unit and computer on a ship. The CTD is often configured with additional optional sensors including fluorometers, transmissometers and/or radiometers. It is often combined with a Rosette of water sampling bottles (e.g. Niskin, GO-FLO) for collecting discrete water samples during the cast.

This term applies to profiling CTDs. For fixed CTDs, see https://www.bco-dmo.org/instrument/869934.

MOCNESS.25

Supplied Name: MOC.25

Supplied Description:

The MOCNESS-1/4 was equipped with nine 150-um mesh nets (nets 0-8). The underwater unit used was #169; temperature probe was #535 and conductivity probe was #120. In addition to the standard temperature and conductivity probes the system also had a beta-type strobe-light unit for reducing avoidance of the nets by some zooplankton and possibly small fish. The strobe system has two units each with 12 LED sets (LUXEON Rebel LED) with peak output between 490-520 nm. The LEDs are powered by the MOCNESS battery and their pulse width, amplitude, flash rate period, and on/off are controlled by the MOCNESS software.

Instrument Type

Generic Name: MOCNESS.25

Acronym: MOC.25

Community Identifier: http://vocab.nerc.ac.uk/collection/L22/current/NETT0097/

Generic Description:

The Multiple Opening/Closing Net and Environmental Sensing System or MOCNESS is a family of net systems based on the Tucker Trawl principle. The MOCNESS-1/4 carries nine 1/4-m2 nets usually of 64 micrometer mesh and is used to sample the larger micro-zooplankton.

Pump

Supplied Name: pump

Supplied Description:

A "Little Giant" brand pump was used to retrieve water from depth for animal culture.

Instrument Type

Generic Name: Pump

Generic Description:

A pump is a device that moves fluids (liquids or gases), or sometimes slurries, by mechanical action. Pumps can be classified into three major groups according to the method they use to move the fluid: direct lift, displacement, and gravity pumps

Reeve Net

Supplied Description:

A 1-m diameter Reeve net with a 150-um mesh net was deployed via the A-frame. The book-clamp to attach the net was borrowed from Carin Asjian’s lab. Ship speed during tows was ~1-1.5 knots. The depth and duratilon of deployment varied widely. We occasionally focused on very deep (90-130) or very shallow (40-20) layers based on acoustic evidence, but had our greatest success with a tow-yo pattern that focused on depth ranges between 40-90 m (See Cruise Report, Table 1 and Appendix 4 for details). http://bcodata.whoi.edu/GoME_Pteropods/cruise_reports/Tioga729_Cruise_Report.pdf

Instrument Type

Generic Name: Reeve Net

Community Identifier: http://vocab.nerc.ac.uk/collection/L22/current/NETT0147/

Generic Description:

A Reeve Net is a conventional ring net with a very large acrylic cylindrical cod-end (30 liters) designed to collect fragile gelatinous animals. The net is lowered to a particular depth and then hauled slowly back to the surface (5-10 m/min). Reeve (1981) also described a double net system with no bridle and flotation at the net mouth that is attached to a roller mechanism that rides on a tow wire.
The roller system is locked in place by a pressure release device. Once below a set pressure, the roller
and nets are released and they float slowly up the wire, gently collecting the zooplankton, without being
influenced by the motion of the vessel and associated vertical wire movements. (from Wiebe and Benfield, 2003)

Parameters

Date and time formats are described in python strftime() syntax.

Supplied Name	Supplied description	Supplied Units	Standard Name
cast	cast number		cast
comments	free text comments		comment
day_local	day of month, local time		day_local
day_utc	day of month, UTC	1 to 31	day_utc
depth	depth of sample	meters	depth
depth_w	depth of water	meters	depth_w
event	event or sampling operation number		event
instrument	Instrument used to collect data, see: instrument list		instrument
ISO_DateTime_UTC	Date/Time (UTC) ISO formatted. This standard is based on ISO 8601:2004(E). e.g. 2009-08-30T14:05:00[.xx]Z (UTC time)	YYYY-MM-DDTHH:MM:SS[.xx]Z	ISO_DateTime_UTC
lat	latitude, negative = South		lat
lon	longitude, negative = West		lon
month_local	month of year, local time		month_local
mon_utc	month of year, UTC	1 to 12	month_utc
se_flag	sampling operation start (s) or end (e) flag		se_flag
station	consecutive station number		station
sta_std	standard station number for this project.	unitless	station_std
timediff	The number of hours added to local time to convert to UTC.	hours	time_diff
time_local	time of day, local time, using 2400 clock format		time_local
time_utc	time, UTC	HHMM	time_utc
year	year		year

Database

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Dataset: TI729 eventlog