Dataset: MOCNESS Event Logs ETP

Name: Date, time, location, and depth range for MOCNESS tows from the R/V Seward Johnson, R/V Knorr in the Eastern Tropical North Pacific from 2007-10-25 to 2009-01-01
Published: 2020-01-30
Keywords: oceans

Cite This Dataset

DOI:10.1575/1912/bco-dmo.786098.1

Spatial Extent: N:13.177 E:-90.001 S:8.964 W:-105.296

Temporal Extent: 2007-10-25 - 2009-01-01

Project:

Collaborative Research: Zooplankton in the Redoxcline of the Cariaco Basin: Impact on Biogeochemical Cycling (ETP)

Program:

Ocean Carbon and Biogeochemistry (OCB)

Principal Investigator:

Karen Wishner (University of Rhode Island, URI-GSO)

Co-Principal Investigator:

Brad Seibel (University of South Florida, USF)

BCO-DMO Data Manager:

Mathew Biddle (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Version:

Version Date:

2020-01-30

Restricted:

Validated:

Yes

Current State:

Final no updates expected

Date, time, location, and depth range for MOCNESS tows from the R/V Seward Johnson, R/V Knorr in the Eastern Tropical North Pacific from 2007-10-25 to 2009-01-01

Abstract:

Date, time, location, and depth range for MOCNESS tows

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Archival Copy

Version Date	Archive	Persistent Identifier (PID)	Date PID Issued
2020-01-30	Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)	10.1575/1912/bco-dmo.786098.1	2020-01-30

Description

Vertically-stratified day and night MOCNESS tows usually from 1200 or 1000 m to the surface. Some tows covered smaller depth intervals in finer detail. See Wishner et al. 2013, 2018, and 2019 (online preprint in review) for more details.

Methods & Sampling

See Wishner et al. 2013, 2018, and 2019 (online preprint in review) for details and results. Sampling for zooplankton occurred on the upcast portion of the tow. Samples were preserved in borate-buffered formaldehyde at sea. Zooplankton, especially copepods, were sorted and identified microscopically later in the lab.

Data Processing Description

BCO-DMO Processing Notes:
- added conventional header with dataset name, PI name, version date
- modified parameter names to conform with BCO-DMO naming conventions
- extracted cruise_id from file names
- combined Date_UTC and Time_In_UTC to create ISO_DateTime_UTC
- replaced comma with semicolon in Comments field

Data Files

File
moc_event_log.csv (Comma Separated Values (.csv), 4.61 KB) MD5:9a90c4913e477644f8fea8b7ae641797 Primary data file for dataset ID 786098

More Information about this dataset

Funding Sources

Funding Source	Award Number
NSF Division of Ocean Sciences	OCE-0526502

Deployments

Deployment	Synonyms	Start Date	Platform	Investigator
KN195-02	KN0819502	2008-12-08	R/V Knorr	Kendra L. Daly (Chief Scientist)	data info
SJ07		2007-10-18	R/V Seward Johnson	Kendra L. Daly (Chief Scientist)	data info

Instruments

MOCNESS

Supplied Description:

1 m2 MOCNESS

Instrument Type

Generic Name: MOCNESS

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. There are currently 8 different sizes of MOCNESS in existence which are designed for capture of different size ranges of zooplankton and micro-nekton Each system is designated according to the size of the net mouth opening and in two cases, the number of nets it carries. The original MOCNESS (Wiebe et al, 1976) was a redesigned and improved version of a system described by Frost and McCrone (1974).(from MOCNESS manual) This designation is used when the specific type of MOCNESS (number and size of nets) was not specified by the contributing investigator.

Parameters

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

Supplied Name	Supplied description	Supplied Units	Standard Name
cruise_id	identifier for the cruise as extracted from the file name	unitless	cruise_id
MOC	MOCNESS Number	unitless	no_bcodmo_term
Station	Station number	unitless	station
Tow_Type	type of tow	unitless	tow
ISO_DateTime_UTC	Date and time following the ISO8601 format	unitless	ISO_DateTime_UTC
Date_Local	local date in mmddyyyy format	unitless	date_local
Date_UTC	UTC date in mmddyyyy format	unitless	date_utc
Time_In_UTC	UTC time in following format HHMM	unitless	time_gmt
Time_Out_UTC	UTC time out following format HHMM	unitless	time_gmt
Time_In_Local	Local time in following format HHMM. Cruise SJ07 was UTC-500. Cruise KN0819502 was UTC-600.	unitless	time_local
Time_Out_Local	local time out following format HHMM. Cruise SJ07 was UTC-500. Cruise KN0819502 was UTC-600.	unitless	time_local
Lat_In	latitude in decimal degrees with negative values indicating South	decimal degrees	lat
Lon_In	longitude in decimal degrees with negative values indicating West	decimal degrees	lon
Lat_Out	latitude in decimal degrees with negative values indicating South	decimal degrees	lat
Lon_Out	longitude in decimal degrees with negative values indicating West	decimal degrees	lon
Day_Night	Designator if cast was during the day or night	unitless	no_bcodmo_term
Min_Depth	minimum depth	meters (m)	depth
Max_Depth	maximum depth	meters (m)	depth
Comments	additional comments	unitless	no_bcodmo_term