Dataset: MUSiCC OC1504A - Photosynthesis data
Deployment: OC1504A

Photosynthetic data from the OC1504A cruise.

Principal Investigator:

Kimberlee Thamatrakoln (Rutgers University, Rutgers IMCS)

Co-Principal Investigator:

Mark A. Brzezinski (University of California-Santa Barbara, UCSB-LifeSci)

Contact:

Kimberlee Thamatrakoln (Rutgers University, Rutgers IMCS)

BCO-DMO Data Manager:

Hannah Ake (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Project:

Linking physiological and molecular aspects of diatom silicification in field populations (Diatom Silicification)

Current State:

Final no updates expected

Version:

Final

Deployment Synonyms:

MUSiCC

Version Date:

2016-07-28

Data URL:

https://osprey.bco-dmo.org/dataset-deployment/652747/data

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Description

Photosynthetic data on water collected by CTD and measured using fast repetition rate fluorometry.

Methods & Sampling

Dataset acquisition description

Photosynthetic parameters were measured using fast repetition rate fluorometry on whole seawater collected by CTD. See reference below for details on data analysis.

Data Processing Description

Dataset Processing Description

Photosynthetic parameters were corrected for background fluorescence by measuring 0.2 µm filtered seawater from 1-2 depths. Fo and Fm of background samples were subtracted from sample Fo and Fm and corrected values were used to calculate Fv/Fm, where Fv=Fm-Fo (Kolber et al. 1998)

DMO Notes:
-File was resubmitted by PI after some consultation with several columns and rows removed
-Column names were changed to meet BCO-DMO standards
- Some spaces were removed from cell contents
- cruise_id and ISO_DateTime_UTC column were added

More information about this dataset deployment

Funding

Award Number	Funding Source
OCE-1333929	NSF Division of Ocean Sciences
OCE-1334387	NSF Division of Ocean Sciences

Instruments

Fast Repetition Rate Fluorometer

Supplied Description:

Photosynthetic parameters were measured.

Instrument Type

Generic Name: Fast Repetition Rate Fluorometer

Acronym: FRRf

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/113/

Generic Description:

An FRRf is used for measuring the fluorescence of a sample of phytoplankton photosynthetic competency (Fv/Fm).

Parameters

Supplied Name	Supplied description	Supplied Units	Standard Name
cruise_id	cruise identification where samples where collected	unitless	cruise_id
CTD	CTD cast	unitless	cast
depth	depth at which samples were collected	meters	depth
date_local	local date of sample collection; mm/dd/yy	unitless	date_local
time_local	local time of sample collection; HH:MM:SSpp	unitless	time_local
Fluor_min	minimal fluorescence yield corrected for background fluorescence. Fo	relative units	fluor
Fluor_max	maximal fluorescence yield corrected for background fluorescence. Fm	relative units	fluor
FvFm	maximum quantum yield corrected for background fluorescence; Fv divided by Fm	dimensionless	Fv_Fm
functional_absorption	Functional absorption cross-section of photosystem II (measured using 450 nm excitation; units A2); sigma	unitless	no_bcodmo_term
connectivity_p	connectivity factor defines the efficiency of exciton energy transfer between individual photosynthetic units; originally p	unitless	no_bcodmo_term
ISO_DateTime_UTC	DateTime (UTC) ISO formatted	unitless	ISO_DateTime_UTC

Database

Contribute Data

Dataset: MUSiCC OC1504A - Photosynthesis data
Deployment: OC1504A

Dataset acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: MUSiCC OC1504A - Photosynthesis dataDeployment: OC1504A

Dataset acquisition description

Dataset Processing Description

Dataset: MUSiCC OC1504A - Photosynthesis data
Deployment: OC1504A