Dataset: RR1804/1805 hydrographic and nutrient data
Deployment: RR1805

Principal Investigator:

Allan Devol (University of Washington, UW)

Co-Principal Investigator:

Richard Keil (University of Washington, UW)

Gabrielle Rocap (University of Washington, UW)

BCO-DMO Data Manager:

Christina Haskins (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Project:

Dimensions: Diversity, assembly and function of microbial communities on suspended and sinking particles in a marine Oxygen Deficient Zone (ETNP_ParticleOmics)

Data URL:

https://osprey.bco-dmo.org/dataset-deployment/779204/data

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Description

CTD bottle files for all CTD casts during R/V Roger Revelle cruise RR1804-1805 along with all nutrient data on casts from which it was collected.

Methods & Sampling

Dataset acquisition description

The Dataset contains the processed bottle files, i.e., depths and associated data collected electronically by the CTD, for all ctd casts during cruise RR1804-1805 along with all nutrient data on casts from which it was collected. The nutrients include nitrate, nitrite, silicate, phosphate, and ammonium. The concentrations for all nutrients are in micromoles per kg as is the CTD oxygen concentration. Nutrient samples were filtered (Millipore Sterivex sterile PES, 0.22uM) before analysis and analyzed using the US-JGOFS protocols (http://usjgofs.whoi.edu/protocols_rpt_19.html).

Data Processing Description

Dataset Processing Description

CTD data has been reprocessed and aligned and outliers have been removed.

BCO-DMO Data Manager Processing Notes:
* added a conventional header with dataset name, PI name, version date
* modified parameter names to conform with BCO-DMO naming conventions. Brackets, slashes, hyphens, and spaces removed and replaced with underscores. Units in column names were removed and can be found in the parameter description section.
* blank values in this dataset are displayed as "nd" for "no data." nd is the default missing data identifier in the BCO-DMO system.
* converted date to ISO8601 format yyyy-mm-dd
* cruise column values populated across all data based on cruise date ranges. Originally submitted data had "RR1804/5" in first cell only.
* column 'type' with values of 'b' removed from the dataset. Leftover from ODV where 'b' was for bottle data
* adjusted typo in the last 47 lines of data with 2019 year to 2018 year.
* column 'event' with numeric values removed from the dataset. Full event log was not provided and PI instructed it be deleted.

More information about this dataset deployment

Funding

Award Number	Funding Source
DEB-1542240	NSF Division of Environmental Biology

Instruments

CTD Sea-Bird 911

Supplied Name:

Supplied Description:

Factory Calibrations

Instrument Type

Generic Name: CTD Sea-Bird 911

Acronym: CTD SBE 911

Community Identifier: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0035/

Generic Description:

The Sea-Bird SBE 911 is a type of CTD instrument package. The SBE 911 includes the SBE 9 Underwater Unit and the SBE 11 Deck Unit (for real-time readout using conductive wire) for deployment from a vessel. The combination of the SBE 9 and SBE 11 is called a SBE 911. The SBE 9 uses Sea-Bird's standard modular temperature and conductivity sensors (SBE 3 and SBE 4). The SBE 9 CTD can be configured with auxiliary sensors to measure other parameters including dissolved oxygen, pH, turbidity, fluorescence, light (PAR), light transmission, etc.). More information from Sea-Bird Electronics.

Fluorometer

Supplied Name: Sea Point fluorometer

Supplied Description:

Chlorophyll was measured by SeaPoint fluorometer.

Instrument Type

Generic Name: Fluorometer

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

Generic Description:

A fluorometer or fluorimeter is a device used to measure parameters of fluorescence: its intensity and wavelength distribution of emission spectrum after excitation by a certain spectrum of light. The instrument is designed to measure the amount of stimulated electromagnetic radiation produced by pulses of electromagnetic radiation emitted into a water sample or in situ.

WET Labs {Sea-Bird WETLabs} C-Star transmissometer

Supplied Name: Wetlabs C-star

Supplied Description:

For beam attenuation and transmission.

Instrument Type

Generic Name: WET Labs {Sea-Bird WETLabs} C-Star transmissometer

Acronym: WL CSTAR Trans

Community Identifier: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0160/

Generic Description:

The C-Star transmissometer has a novel monolithic housing with a highly intgrated opto-electronic design to provide a low cost, compact solution for underwater measurements of beam transmittance. The C-Star is capable of free space measurements or flow-through sampling when used with a pump and optical flow tubes. The sensor can be used in profiling, moored, or underway applications. Available with a 6000 m depth rating.

More information on Sea-Bird website: https://www.seabird.com/c-star-transmissometer/product?id=60762467717

Parameters

Supplied Name	Supplied description	Supplied Units	Standard Name
Cruise	cruise designation; name	unitless	cruise_id
Station	station identifier	unitless	station
Date	date; reported in m/dd/yy	GMT	date
Cast	cast or profile number	unitless	cast
CTD_btl	CTD bottle identifier	unitless	bottle
Longitude	longitude, in decimal degrees	decimal degrees	lon
Latitude	latitude, in decimal degrees	decimal degrees	lat
Depth	Observation/sample depth below the sea surface.	meter (m)	depth
Sal0	Primary salinity from CTD	psu	sal
Sal1	Secondary salinity from CTD	psu	sal
T0	Primary temperature from CTD	degrees Celsius C	temp
T1	Secondary temperature from CTD	degrees Celsius C	temp
Sigma_0	sigma-theta	Kg/M3	sigma_0
Sigma_11	sigma-theta	gm/cm3	sigma_0
Sbeox_0	O2 sensor 0; dissolved oxygen concentration	micromoles/kg	O2
Sbeox_1	O2 sensor 1; dissolved oxygen concentration	micromoles/kg	O2
Sbeox_pcnt	Based on Sbeox_0; Saturation of oxygen in the water body, as a percentage.	%	O2_sat_pcnt
Fluorescence	Total chlorophyll_a pigment. See dataset for units of measurement; often reported in: milligrams per cubic meter (mg/m3); micrograms/liter (ug/L); nanograms/liter (ng/L).	ug/l	chl_a
Beam_Attn	attenuation (loss of light) of a narrow, well collimated beam of light; beam attenuation due to particles; the particulate beam attenuation coefficient (cp)	1/m	beam_cp
Beam_Trans	light transmission, as percent	%	no_bcodmo_term
Par	Photosynthetically Available [Active] Radiation; downwelling irradiance	micro einsteins	PAR
pH	on deck pH meter; the measure of the acidity or basicity of an aqueous solution	unitless; pH scale	pH
PO4	Orthophosphate (phosphate, reactive phosphorus)	micromoles/l	PO4
SiOH_4	Silicate (Orthosilicic Acid)	micromoles/l	Silicate
NO3	Nitrate	micromoles/l	NO3
NO2	Nitrite	micromoles/l	NO2
NH4	Ammonium	micromoles/l	NH4

Database

Contribute Data

Dataset: RR1804/1805 hydrographic and nutrient data
Deployment: RR1805

Dataset acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: RR1804/1805 hydrographic and nutrient dataDeployment: RR1805

Dataset acquisition description

Dataset Processing Description

Dataset: RR1804/1805 hydrographic and nutrient data
Deployment: RR1805