Dataset: N_uptake
Deployment: TT012

Nitrogen-15 Uptake rates for labeled substrates

Principal Investigator:

Patricia Wheeler (Oregon State University, OSU)

BCO-DMO Data Manager:

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

Project:

U.S. JGOFS Equatorial Pacific (EqPac)

Version:

August 9, 1995

Deployment Synonyms:

EqPac Fall Time Series

Version Date:

1995-08-09

Data URL:

https://www.bco-dmo.org/dataset-deployment/450972/data

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Description

Nitrogen-15 Uptake rates for labeled substrates

Methods & Sampling

Dataset acquisition description

See Platform deployments for cruise specific documentation

Deployment-specific acquisition description

   PI:              Patricia Wheeler
   of:              Oregon State University
   dataset:         Nitrogen-15 Uptake rates for labeled substrates
                    of nitrate and saturated ammonium
   dates:           October 02, 1992 to October 20, 1992
   location:        N: 0.0745  S: -0.0308  W: -140.1228  E: -139.9627
   project/cruise:  EQPAC/TT012 - Fall Time Series
   ship:            Thomas Thompson
 
   PI-Notes:
   Patricia Wheeler notes:

   1) These incubations were all run in parallel with Dick Barber's in situ
      14C measurements.
   2) The new production (nitrate uptake) estimates are based on the mean of
      duplicate incubations for each depth.
   3) Saturated ammonium uptake was measured at concentrations of about 5 uM
      and are single incubations for each depth.  These rates are "potential"
      uptake rates and need to be interpreted carefully.

   Analytical methods reported in:
   Wheeler, P.A. 1993. New production in the subarctic Pacific Ocean: Net
   changes in nitrate concentrations, rates of nitrate assimilation and
   accumulation of particulate nitrogen. Prog. Oceanogr. 32:137-161.

Data Processing Description

Dataset Processing Description

More information about this dataset deployment

Instruments

Trace Metal Bottle

Supplied Description:

Trace metal (TM) clean rosette bottles were used to collect water samples.

Instrument Type

Generic Name: Trace Metal Bottle

Acronym: TM Bottle

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/30/

Generic Description:

Trace metal (TM) clean rosette bottle used for collecting trace metal clean seawater samples.

Parameters

Supplied Name	Supplied description	Supplied Units	Standard Name
cast	TM cast number, from event log		cast
depth	sample depth based on wire out	meters	depth
depth_n	nominal depth of sample incubation	meters	no_bcodmo_term
event	event number from event log		event
NH4_int	integrated ammonium uptake rates	mmol/m2/day	no_bcodmo_term
NO3_int	integrated nitrate uptake rates	mmol/m2/day	no_bcodmo_term
pNH4	N-15 uptake from ammonium labeled substrate	mMol N /kg/h	no_bcodmo_term
pNO2	N-15 uptake from nitrite labeled substrate	mMol N /kg/h	no_bcodmo_term
pNO3	N-15 uptake from nitrate labeled substrate	mMol N /kg/h	no_bcodmo_term
psNH4	uptake rates of N-15 labeled saturated ammonium	umol/liter/day	no_bcodmo_term
sta	station number from event log		no_bcodmo_term

Database

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Dataset: N_uptake
Deployment: TT012

Dataset acquisition description

Deployment-specific acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: N_uptakeDeployment: TT012

Dataset acquisition description

Deployment-specific acquisition description

Dataset Processing Description

Dataset: N_uptake
Deployment: TT012