Dataset: NCP Net Comm Prod and Resp
Deployment: OC404-04

Net community production and respiration rates

Principal Investigator:

Dennis J. McGillicuddy (Woods Hole Oceanographic Institution, WHOI)

Co-Principal Investigator:

Beatriz Mourino-Carballido (Woods Hole Oceanographic Institution, WHOI)

BCO-DMO Data Manager:

Cynthia L. Chandler (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Project:

Eddies Dynamics, Mixing, Export, and Species composition (EDDIES)

Version:

23 October 2007

Deployment Synonyms:

EDDIES 2004 Survey 2, OC404-4, OC404_S2

Coordinated Deployments:

WB0413

Version Date:

2007-10-23

Data URL:

https://www.bco-dmo.org/dataset-deployment/452253/data

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Description

Net community production and respiration rates


 dates:           15 June 2004 to 05 August 2004  (20040615-20040805) 
 location:        N: 32.660  S: 30.498  W: -65.760  E: -59.607 
 project/cruise:  EDDIES/OC404-1 2004 Survey 1 and OC404-4 2004 Survey 2
 platform:        R/V Oceanus
 
 
 Methodology

 
 Change history: YYMMDD
   071024: downloaded original data from EDDIES data web site;
            added to OCB database by Cyndy Chandler, BCO-DMO
 
 DMO Note: the experimental data from which these rates were calculated
           are available from this database as O2 evolution data
 
 PI note: There were no surface values for sta OC404-1 15 and 65, so 
          depth-int values were computed by extrapolating to the surface.

Methods & Sampling

Dataset acquisition description

Data Processing Description

Dataset Processing Description

More information about this dataset deployment

Funding

Award Number	Funding Source
OCE-0241310	NSF Division of Ocean Sciences

Instruments

Light-Dark Bottle

Supplied Description:

Instrument Type

Generic Name: Light-Dark Bottle

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/82/

Generic Description:

The light/dark bottle is a way of measuring primary production by comparing before and after concentrations of dissolved oxygen.

Bottles containing seawater samples with phytoplankton are incubated for a predetermined period of time under light and dark conditions. Incubation is preferably carried out in situ, at the depth from which the samples were collected. Alternatively, the light and dark bottles are incubated in a water trough on deck, and neutral density filters are used to approximate the light conditions at the collection depth.

Rates of net and gross photosynthesis and respiration can be determined from measurements of dissolved oxygen concentration in the sample bottles.

Niskin bottle

Supplied Name: Niskin Bottle

Supplied Description:

Instrument Type

Generic Name: Niskin bottle

Community Identifier: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0412/

Generic Description:

A Niskin bottle (a next generation water sampler based on the Nansen bottle) is a cylindrical, non-metallic water collection device with stoppers at both ends. The bottles can be attached individually on a hydrowire or deployed in 12, 24, or 36 bottle Rosette systems mounted on a frame and combined with a CTD. Niskin bottles are used to collect discrete water samples for a range of measurements including pigments, nutrients, plankton, etc.

Parameters

Supplied Name	Supplied description	Supplied Units	Standard Name
Cruise_ID	cruise identifier	dimensionless	cruise_id
sta	station number	dimensionless	sta
ev_type	sampling event type	dimensionless	ev_type
event	unique sampling event number	YYYYMMDDhhmm	event
date	start date of event (GMT)	YYYYMMDD	date
time	start time of event (GMT)	hhmm	time
lon	longitude, negative denotes West	decimal degrees	lon
lat	latitude, negative denotes South	decimal degrees	lat
locRef	location reference code EDDY code or BATS station	alphanumeric	no_bcodmo_term
depth_n	sample depth, nominal	meters	depth_n
NCP	net community production	millimoles O2/meter^3/day	production
NCP_se	NCP standard error	millimoles O2/meter^3/day	no_bcodmo_term
respir	respiration	millimoles O2/meter^3/day	integ_dark_respir
respir_se	respiration standard error	millimoles O2/meter^3/day	integ_dark_error
GPP	gross primary production	millimoles O2/meter^3/day	no_bcodmo_term
GPP_se	GPP standard error	millimoles O2/meter^3/day	no_bcodmo_term

Database

Contribute Data

Dataset: NCP Net Comm Prod and Resp
Deployment: OC404-04

Net community production and respiration rates

Dataset acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: NCP Net Comm Prod and RespDeployment: OC404-04

Net community production and respiration rates

Dataset acquisition description

Dataset Processing Description

Dataset: NCP Net Comm Prod and Resp
Deployment: OC404-04