Dataset: MUSiCC OC1504A - Nutrients, CTD, and silicon biogeochemical data

Name: Nutrients, pigments, silicate and experimental data collected aboard the OCEANUS during cruise OC1504A in the North Pacific Ocean from 2015-04-19 to 2015-05-06
Published: 2016-07-12
Keywords: nutrients, pigments, diatoms, silica production, experimental, survey, California coast, oceans

Cite This Dataset

DOI:10.1575/1912/bco-dmo.745784

Spatial Extent: N:42.654 E:-120.82 S:34.551 W:-124.482

Temporal Extent: 2015-04-20 - 2015-05-01

Project:

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

Principal Investigator:

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

Co-Principal Investigator:

Kimberlee Thamatrakoln (Rutgers University, Rutgers IMCS)

BCO-DMO Data Manager:

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

Ms Dicky Allison (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Version:

Final

Version Date:

2016-07-12

Restricted:

Validated:

Yes

Current State:

Final no updates expected

Nutrients, pigments, silicate and experimental data collected aboard the OCEANUS during cruise OC1504A in the North Pacific Ocean from 2015-04-19 to 2015-05-06

Abstract:

These data include nutrient, pigment, silica and experimental data collected aboard the OCEANUS during cruise OC1504A in the North Pacific Ocean along the California Coast from 2015-04-19 to 2015-05-06. The water samples were collected by CTDs. Silica production rates were characterized by delivering incremental increases in silicic acid (Si) along with a radioactive isotope of silicon (32Si). This is an extremely sensitive assay and can determine the maximum production rates of the community being studied and the degree that its growth is being limited by lack of Si. These data were collected by Mark Brzezinski from the University of California at Santa Barbara as part of Linking Physiological and Molecular Aspects of Diatom Silicification.

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Archival Copy

Version Date	Archive	Persistent Identifier	Date Assigned
2016-07-12	Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)	10.1575/1912/bco-dmo.745784	2018-09-07

Description

Nutrients, pigments, bottle data, and experimental and survey biogeochemical data from cruise OC1504A. "Silica production rates were characterized by delivering incremental increases in silicic acid (Si) along with a radioactive isotope of silicon (32Si). This extremely sensitive assay can determine the maximum production rates of the community being studied and the degree that its growth is being limited by lack of Si." (from cruise blog)

CRUISE BLOG

These data are restricted until 2017 (2 years after the cruise), or contact Mark Brzezinski, PI.

Methods & Sampling

See the following protocol documents:

32Si Sample Processing (.doc)
Biogenic Si Analysis (.doc)
Dissolved Si Analysis (.doc)

Data Processing Description

BCO-DMO Processing Notes:
- system added negative to the longitude because West;
- modified parameter names to conform with BCO-DMO naming conventions;
- replaced ~ with 'nd' to indicate 'no data';

Data Files

File
MUSiCC.csv (Comma Separated Values (.csv), 11.21 KB) MD5:c12f8390c9d76f52cabe2778bef5daa4 Primary data file for dataset ID 650831

More Information about this dataset

Funding Sources

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

Deployments

Deployment	Synonyms	Start Date	Platform	Investigator
OC1504A	MUSiCC	2015-04-19	R/V Oceanus	Kimberlee Thamatrakoln (Chief Scientist) Mark A. Brzezinski (Co-Chief Scientist)	data info

Instruments

None available yet

Parameters

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

Supplied Name	Supplied description	Supplied Units	Standard Name
lat	latitude in decimal degrees	decimal degrees	lat
lon	longitude in decimal degrees; West is negative	decimal degrees	lon
depth	sampling depth in meters	meters	depth
depth_target	target depth for sample collection	meters	depth
depth_w	bottom depth in meters	meters	depth_bottom
chl_total	total chlorophyll (a+b+c) in micrograms per litre determined fluorometrically	micrograms per liter	chl_a
chla	chlorophyll a in micrograms per litre determined fluorometrically	micrograms per liter	chl_a
phaeo	phaeophytin in micrograms per litre determined fluorometrically	micrograms per liter	phaeo
PO4	dissoved phosphate concentration in micromoles; analyzed in UCSB MSI Analytical lab;http://www.msi.ucsb.edu/services/analytical-lab/seawater-nutrients-fia	micromoles per liter	PO4
NO3_NO2	dissolved nitrate+nitrite concentration in micromoles; analyzed in UCSB MSI Analytical lab; http://www.msi.ucsb.edu/services/analytical-lab/seawater-nutrients-fia	micromoles per liter	NO3_NO2
dSi	silicic acid concentration in micromoles (also known as dissolved silicon concentration or dSi)	micromoles per Si per liter	Si_bio
bSi	particulate biogenic silica in micromoles Si per litre	micromoles per Si per liter	Si_bio
Si_prod_12h	twelve hour incubation silica production rate; original name=12h-32Si rho	micromoles per Si per liter per day	Si_rho
Si_prod_Na2SiO3_12h	twelve hour incubation silica production rate after the addition of sodium silicate to a final concentration of ~20uM Na2SiO3; original name=12h-32Si E rho	micromoles per Si per liter per day	Si_rho
Si_prod_4h	four hour incubation silica production rate; original name=4h-32Si rho	micromoles per Si per liter per day	Si_rho
Si_prod_Na2SiO3_4h	four hour incubation silica production rate after the addition of sodium silicate to a final concentration of ~20uM Na2SiO3; original name=4h-32Si E rho	micromoles per Si per liter per day	Si_rho
Si_prod_bionorm_Na2SiO3_4h	four hour incubation biomass normalized silica production rate after the addition of sodium silicate to a final concentration of ~20uM Na2SiO3; original name=4h-32Si E Vb	per day	Si_Vb
Si_prod_bionorm_12h	twelve hour incubation biomass normalized silica production rate; original name=12h-32Si Vb	per day	Si_Vb
Si_prod_bionorm_Na2SiO3_12h	twelve hour incubation biomass normalized silica production rate after the addition of sodium silicate to a final concentration of ~20uM Na2SiO3; original name=12h-32Si E Vb	per day	Si_Vb
Si_prod_bionorm_4h	four hour incubation biomass normalized silica production rate; original name=4h-32Si Vb	per day	Si_Vb
PAR_percent	percent light level; original name: percent lo	percent	PAR
sample_no	identifier for all types of samples at the given depth	unitless	sample
bottle_rosette	rosette bottle number	unitless	bottle
bottle_pooled	sample identifier denoting whether sample was pooled from several Niskins	unitless	bottle
cruise_id	cruise during which sample was collected	unitless	cruise_id
brief_desc	the way the project refers to the cruise	unitless	brief_desc
event	event number from Bruland event log	unitless	event
station	sampling station number	unitless	station
date_utc	date at longitude 0; the universal time coordinate (UTC);format:dd-mon-yy	unitless	date
time_utc	time at longitude 0; the universal time coordinate (UTC);format:HH:MM	unitless	time_utc
cast	cast type (CTD)	unitless	cast_type
ISO_DateTime_UTC	date and time formatted to ISO 8601 standard; added by DMO;format:YYYY-mm-ddTHH:MM:SS.xx	yyyy-MM-dd'T'HH:mm:ss	ISO_DateTime_UTC

Status message

Database

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Dataset: MUSiCC OC1504A - Nutrients, CTD, and silicon biogeochemical data