Dataset: CliOMZ AT50-10 Underway Sampling Log

Name: Log for the samples taken using the Underway system on board of the R/V Atlantis during the CliOMZ AT50-10 expedition from Golfito, Costa Rica to San Diego, USA that occurred in May - June of 2023.
Published: 2024-03-14
Keywords: Underway sampling, ClioMZ, Eastern Tropical Pacific, oceans

Cite This Dataset

Spatial Extent: N:31.2508 E:-88.9709 S:-10.0643 W:-120.279

Temporal Extent: 2023-05-04 - 2023-06-08

Project:

Collaborative Research: Underexplored Connections between Nitrogen and Trace Metal Cycling in Oxygen Minimum Zones Mediated by Metalloenzyme Inventories (CliOMZ)

Principal Investigator:

Mak A. Saito (Woods Hole Oceanographic Institution, WHOI)

Co-Principal Investigator:

John Breier (University of Texas Rio Grande Valley)

Michael Jakuba (Woods Hole Oceanographic Institution, WHOI)

Alyson E. Santoro (University of California-Santa Barbara, UCSB)

Contact:

Paloma Z. Lopez (Woods Hole Oceanographic Institution, WHOI)

Technician:

Paloma Z. Lopez (Woods Hole Oceanographic Institution, WHOI)

BCO-DMO Data Manager:

Karen Soenen (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Version:

Version Date:

2024-03-14

Restricted:

Validated:

Yes

Current State:

Final no updates expected

Log for the samples taken using the Underway system on board of the R/V Atlantis during the CliOMZ AT50-10 expedition from Golfito, Costa Rica to San Diego, USA that occurred in May - June of 2023.

Abstract:

This is the log for the samples taken using the Underway system on board of the R/V Atlantis during the CliOMZ AT50-10 expedition from Golfito, Costa Rica to San Diego, USA that occurred in May - June of 2023. The log contains metadata associated with the locations where samples were collected, including coordinates, depth, time, volume filtered, filter type, and subsamples' fractions. A Geotech in-line acrylic filter holder connected to a flowmeter were attached to the Underway water flow and particulates were collected. The Science party included members from WHOI, UCSB, UTGRV, and Clark University

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Methods & Sampling

A system with a Geotech in-line acrylic filter holder (142mm diameter) connected to a flowmeter was attached to the Underway water flow on R/V Atlantis and particulates were collected for approximately one hour. The filtration system was arranged to split the water flow between two filter holders/flowmeters to achieve dual sampling from the same water mass. One side contained a combusted Glass Fiber FIlter (GFF) and the other side fractionated the sample with a 51um pore size Nitex mesh and a 0.2um pore size Supor (PES) filter. The Nitex and Supor filters were cleaned with 5% for 4 hours and neutrilized to pH6 before use. Samples were collected at station and while on transit (between stations).

A Geotech in-line acrylic filter holder 142mm diameter was used along with a flowmeter for this dataset.

Problems/Issues

The ship had water flow issues related to the water pump in the Underway system. Comments where added for the samples where water flow issues were present.

Data Processing Description

All geographic locations presented here were taken from the ship's R2R elog. The volume filtered was calculated from the difference between end and start flow meter readings.

Data Files

File
922268_v1_underwaysampling.csv (Comma Separated Values (.csv), 18.42 KB) MD5:b66e9f9697802f26ae6768590611a401 Primary data file for dataset ID 922268, version 1

More Information about this dataset

Funding Sources

Funding Source	Award Number
NSF Division of Ocean Sciences	OCE-1924554

Deployments

Deployment	Synonyms	Start Date	Platform	Investigator
AT50-10		2023-05-02	R/V Atlantis		data info

Instruments

Flow Meter

Supplied Name:

Supplied Description:

A Geotech in-line acrylic filter holder 142mm diameter was used along with a flowmeter for this dataset.

Instrument Type

Generic Name: Flow Meter

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/388/

Generic Description:

General term for a sensor that quantifies the rate at which fluids (e.g. water or air) pass through sensor packages, instruments, or sampling devices. A flow meter may be mechanical, optical, electromagnetic, etc.

Parameters

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

Supplied Name	Supplied description	Supplied Units	Standard Name
Cruise_ID	Cruise ID AT50-10	unitless	cruise_id
Station_number	Station number	unitless	station
Start_Date_UTC	Filtration start date Format: %Y-%m-%d	UTC	date_start
Start_Time_UTC	Filtration start time Format: %H:%M:%S	UTC	time_start
End_Date_UTC	Filtration end date Format: %Y-%m-%d	UTC	date_end
End_Time_UTC	Filtration end time Format: %H:%M:%S	UTC	time_end
Start_Lat	Filtration start latitude	decimal degrees	lat_start
Start_Long	Filtration start longitude	decimal degrees	lon_start
End_Lat	FIltation end latitude	decimal degrees	lat_end
End_Long	Filtation end longitude	decimal degrees	lon_end
Depth	Sample depth	meter (m)	depth
Sampling_device	Sampling device	unitless	instrument
At_station_or_transit	Description of geographical location	unitless	sample_descrip
Filter_type	Filter type	unitless	sample_descrip
Volume_filtered	Volume of water filtered	liters (L)	vol_filt
DEPLOYMENT_COMMENTS	Comments on deployment	unitless	comment
SAMPLE_PRFEIX	Sample prefix	unitless	sample_descrip
SUPOR_0_2_PROTEIN1	Fraction of 142mm diameter 0.2um pore size Supor (PES) filter assigned for global metaproteomics	unitless	sample_descrip
SUPOR_0_2_PROTEIN2	Fraction of 142mm diameter 0.2um pore size Supor (PES) filter assigned for global metaproteomics	unitless	sample_descrip
SUPOR_0_2_DNA1	Fraction of 142mm diameter 0.2um pore size Supor (PES) filter assigned for genomic DNA analysis, sample 1 of 2	unitless	sample_descrip
SUPOR_0_2_DNA2	Fraction of 142mm diameter 0.2um pore size Supor (PES) filter assigned for genomic DNA analysis, sample 2 of 2	unitless	sample_descrip
SUPOR_0_2_eDNA	Fraction of 142mm diameter 0.2um pore size Supor (PES) filter assigned for environmental DNA analysis	unitless	sample_descrip
SUPOR_0_2_pMetal	Fraction of 142mm diameter 0.2um pore size Supor (PES) filter assigned for particulate metal content analysis	unitless	sample_descrip
SUPOR_0_2_POS	Fraction of 142mm diameter 0.2um pore size Supor (PES) filter assigned for particulate organic sulfur analysis	unitless	sample_descrip
NITEX_51_PROTEIN1	Fraction of 142mm diameter 51um pore size Nitex filter assigned for global metaproteomics	unitless	sample_descrip
NITEX_51_DNA1	Fraction of 142mm diameter 51um pore size Nitex filter assigned for genomic DNA analysis	unitless	sample_descrip
NITEX_51_pMetal	Fraction of 142mm diameter 51um pore size Nitex filter assigned for particulate metal content analysis	unitless	sample_descrip
GFF_PROTEIN1	Fraction of 142mm diameter 0.7um pore size Glass Fiber Filter (GFF) filter assigned for global metaproteomics	unitless	sample_descrip
GFF_CA	Fraction of 142mm diameter 0.7um pore size Glass Fiber Filter (GFF) filter assigned for carbonic anhydrase activity analysis	unitless	sample_descrip
GFF_PIGS	Fraction of 142mm diameter 0.7um pore size Glass Fiber Filter (GFF) filter assigned for photosynthetic pigments analysis	unitless	sample_descrip
GFF_POC	Fraction of 142mm diameter 0.7um pore size Glass Fiber Filter (GFF) filter assigned for particulate organic carbon analysis	unitless	sample_descrip
GFF_HG	Fraction of 142mm diameter 0.7um pore size Glass Fiber Filter (GFF) filter assigned for mercury content analysis	unitless	sample_descrip
SAMPLE_COMMENTS	Comments on sample taken	unitless	comment

Database

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Dataset: CliOMZ AT50-10 Underway Sampling Log