Dataset: GoMX_DWH_sed_trap

Name: Sediment trap data from Deep Water Horizon measured from R/V Cape Hatteras cruise CH0710 and the RR1 M2 VK02 Mooring at the Gulf of Mexico, Visoca Knoll site VK826 in 2010 (GoMX Sed Trap project)
Published: 2014-04-22
Keywords: oceans

Cite This Dataset

Spatial Extent: N:29.1603 E:-88.0188 S:29.1603 W:-88.0188

Project:

RAPID Response in Gulf of Mexico: Sediment Trap Investigations (GoMX Sed Trap)

Program:

Gulf of Mexico - Deepwater Horizon Oil Spill (GoMX - DHOS)

Principal Investigator:

Christopher R. German (Woods Hole Oceanographic Institution, WHOI)

Contact:

Steven Manganini (Woods Hole Oceanographic Institution, WHOI)

BCO-DMO Data Manager:

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

Version:

22 April 2014

Version Date:

2014-04-22

Restricted:

Validated:

Yes

Current State:

Final with updates expected

Sediment trap data from Deep Water Horizon measured from R/V Cape Hatteras cruise CH0710 and the RR1 M2 VK02 Mooring at the Gulf of Mexico, Visoca Knoll site VK826 in 2010 (GoMX Sed Trap project)

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Description

Mass flux data from sediment trap deployed near the Deep Water Horizon site. The trap was deployed from 25-June-2010 to 07-January-2011.

Note (05 May 2014): Additional data (POC, PIC, H, N, Si_bio, Al, Ba, Ca, Fe, Mg, Mn, Si, Sr, Ti) will be made available upon completion of futher analyses and manuscript publication.

Methods & Sampling

Time-series sampling (from 25-June-2010 to 07-Jan-2011, at a sampling interval of 15 days) was undertaken using a standard McLane PARFLUX Mk8 sediment trap. All data were generated in the WHOI PARFLUX laboratory following standard procedures (Eggiman et al., 1980; Honjo et al., 1995). Samples were processed through a 10-positon sample splitter and aliquots dried and weighed to obtain mass flux data. Further samples were then digested using standard methods to obtain concentrations per known mass of sample.

Data Processing Description

Sample concentrations (mass/mass) have been multiplied by mass flux results (mass/area/time) to obtain fluxes of different chemical species. Thus concentration of parameter X, is multiplied by mass flux (F-mass) to obtain flux of parameter X (F-X): F-X = F-mass x [X]

BCO-DMO Processing Notes:
- modified parameter names to conform to BCO-DMO naming conventions;
- replaced spaces with underscores;
- changed format of dates to mm/dd/yyyy;
- changed lat and lon from degrees and decimal minutes to decimal degrees.

Data Files

File
sed_trap.csv (Comma Separated Values (.csv), 1.40 KB) MD5:0e7e81927945947d424da5e2071476ca Primary data file for dataset ID 511712

More Information about this dataset

Funding Sources

Funding Source	Award Number
NSF Division of Ocean Sciences	OCE-1044289

Deployments

Deployment	Synonyms	Start Date	Platform	Investigator
CH0710		2010-06-21	R/V Cape Hatteras	Christopher R. German (Chief Scientist)	data info
Viosca_Knoll_VK826_2010		2010-06-25	RR1 M2 VK02 Mooring	Christopher R. German (Chief Scientist)	data info

Instruments

McLane PARFLUX Mark 8 Sediment Trap

Supplied Name: McLane PARFLUX Mk 8

Supplied Description:

Instrument Type

Generic Name: McLane PARFLUX Mark 8 Sediment Trap

Acronym: McLane PARFLUX Mark 8

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/33/

Generic Description:

The Mark 8 Sediment Trap is a time-series instrument that autonomously collects the flux of settling particles on an operator-defined schedule. The wide top funnel accumulates particulate specimens into individual sample bottles. The cone interior is natural polyethylene. Deploys from a stand-alone mooring or a large high-tension vertical array.

McLane Mark 8 Data Sheet (PDF)
McLane website: http://www.mclanelabs.com/master_page/product-type/samplers/sediment-traps

Parameters

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

Supplied Name	Supplied description	Supplied Units	Standard Name
funding_agency	Name of funding agency.	text	no_bcodmo_term
site	Name of the site.	text	site
lat	Latitude of the sediment trap.	decimal degrees	lat
lon	Longitude of the sediment trap.	decimal degrees	lon
depth_w	Depth of the water (seafloor).	meters (m)	depth_w
trap_depth	Depth of the sediment trap.	meters (m)	depth_trap
trap_id	Trap identifier.	text	no_bcodmo_term
sample	Sample number.	integer	sample
date_open	Date the sample cup was opened.	mm/dd/yyyy	date_open
date_closed	Date the sample cup was closed.	mm/dd/yyyy	date_end
interval	Sampling interval (number of days open).	days	days_open
trap_area	Trap area.	square meters (m2)	no_bcodmo_term
lt_1mm_wt	Weight of particles less than 1 millimeter (mm).	milligrams (mg)	weight
lt_1mm_flux	Flux of particles less than 1 millimeter (mm).	milligrams per square meter per day (mg/m2/d)	no_bcodmo_term

Status message

Database

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Dataset: GoMX_DWH_sed_trap