Dataset: Biogeochemistry FGBRR16
Deployment: FGB-RR16

Biogeochemical data collected during the Flower Garden Banks Rapid Response Cruise

Principal Investigator:

Kathryn E.F. Shamberger (Texas A&M University, TAMU)

Contact:

Andrea Kealoha (University of Hawai'i, UH)

BCO-DMO Data Manager:

Shannon Rauch (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Project:

RAPID: Collaborative Research: Impact of freshwater runoff from Hurricane Harvey on coral reef benthic organisms and associated microbial communities (Rapid Reefs Harvey)

Current State:

Final no updates expected

Data URL:

https://www.bco-dmo.org/dataset-deployment/787676/data

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Description

This dataset combines the biogeochemical data collected during the Flower Garden Banks Rapid Response Cruise which occurred following the discovery of the localized mortality event.

Methods & Sampling

Dataset acquisition description

The CTD (SBE-25) was equipped with 6 4L niskin bottles and was used to measure temperature and salinity. Niskins were used to collect water samples for carbonate chemistry (i.e., DIC and TA), oxygen, and nutrients. Water samples for DIC and TA were collected according to the methods in Dickson et al. (2007), and analyzed at TAMU using a VINDTA 3C. Certified Reference Materials (CRMs) were provided by A. Dickson at Scripps Institute of Oceanography (Dickson et al. 2007) and were used to calibrate for TA and DIC. The reproducibility of these samples was 1.43 ± 1.07 μmol kg-1 for TA and 2.64 ± 1.24 μmol kg-1 for DIC. Dissolved oxygen (DO) was measured using Winkler titrations. After collecting the water from the Niskin into flasks, aliquots of manganese chloride and sodium hydroxide-sodium iodide were added. The titration was performed directly after water collection using sodium thiosulfate; Winkler titration was performed with an amperometric dead-stop endpoint determination with a double platinum electrode. Nutrient samples (nitrate, nitrite, ammonium, phosphate, and silicate) were collected into polycarbonate flasks after filtration through GF/C 0.7-um pore size filters, frozen, and analyzed ashore using standard World Ocean Circulation Experiment (WOCE) segmented flow methodologies using an Astoria Analyzer (Astoria-Pacific) (Gordon 1994 ).

Sampling gaps are reported as "nd" in the dataset.

Data Processing Description

Dataset Processing Description

BCO-DMO Processing:
- renamed fields (removed spaces and units);
- formatted date column to yyyy-mm-dd (was m/d/yy);
- corrected year value of 2006 to 2016 (in row 128);
- added ISO_DateTime column
- replaced "nan" with "nd" (no data)

More information about this dataset deployment

Funding

Award Number	Funding Source
OCE-1800913	NSF Division of Ocean Sciences

Instruments

MARIANDA VINDTA 3C total inorganic carbon and titration alkalinity analyser

Supplied Name: VINDTA 3C

Supplied Description:

Instrument Type

Generic Name: MARIANDA VINDTA 3C total inorganic carbon and titration alkalinity analyser

Acronym: inorganic carbon and alkalinity analyser

Community Identifier: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0481/

Generic Description:

The Versatile INstrument for the Determination of Total inorganic carbon and titration Alkalinity (VINDTA) 3C is a laboratory alkalinity titration system combined with an extraction unit for coulometric titration, which simultaneously determines the alkalinity and dissolved inorganic carbon content of a sample. The sample transport is performed with peristaltic pumps and acid is added to the sample using a membrane pump. No pressurizing system is required and only one gas supply (nitrogen or dry and CO2-free air) is necessary. The system uses a Metrohm Titrino 719S, an ORION-Ross pH electrode and a Metrohm reference electrode. The burette, the pipette and the analysis cell have a water jacket around them. Precision is typically +/- 1 umol/kg for TA and/or DIC in open ocean water.

Niskin bottle

Supplied Name: 4L niskin bottles

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.

Nutrient Autoanalyzer

Supplied Name: Astoria Analyzer

Supplied Description:

Instrument Type

Generic Name: Nutrient Autoanalyzer

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/LAB04/

Generic Description:

Nutrient Autoanalyzer is a generic term used when specific type, make and model were not specified. In general, a Nutrient Autoanalyzer is an automated flow-thru system for doing nutrient analysis (nitrate, ammonium, orthophosphate, and silicate) on seawater samples.

Sea-Bird SBE 25 Sealogger CTD

Supplied Name: CTD SBE-25

Supplied Description:

Instrument Type

Generic Name: Sea-Bird SBE 25 Sealogger CTD

Acronym: CTD SBE 25

Community Identifier: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0040/

Generic Description:

The Sea-Bird SBE 25 SEALOGGER CTD is battery powered and is typically used to record data in memory, eliminating the need for a large vessel, electrical sea cable, and on-board computer. All SBE 25s can also operate in real-time, transmitting data via an opto-isolated RS-232 serial port. Temperature and conductivity are measured by the SBE 3F Temperature sensor and SBE 4 Conductivity sensor (same as those used on the premium SBE 9plus CTD). The SBE 25 also includes the SBE 5P (plastic) or 5T (titanium) Submersible Pump and TC Duct. The pump-controlled, TC-ducted flow configuration significantly reduces salinity spiking caused by ship heave, and in calm waters allows slower descent rates for improved resolution of water column features. Pressure is measured by the modular SBE 29 Temperature Compensated Strain-Gauge Pressure sensor (available in eight depth ranges to suit the operating depth requirement). The SBE 25's modular design makes it easy to configure in the field for a wide range of auxiliary sensors, including optional dissolved oxygen (SBE 43), pH (SBE 18 or SBE 27), fluorescence, transmissivity, PAR, and optical backscatter sensors. More information from Sea-Bird Electronics: http:www.seabird.com.

Winkler Oxygen Titrator

Supplied Name: Winkler titration

Supplied Description:

Instrument Type

Generic Name: Winkler Oxygen Titrator

Acronym: Winkler Titrator

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/LAB12/

Generic Description:

A Winkler Oxygen Titration system is used for determining concentration of dissolved oxygen in seawater.

Parameters

Supplied Name	Supplied description	Supplied Units	Standard Name
Cast	cast number	unitless	cast
Salinity	salinity	unitless	sal
Depth	depth	meters (m)	depth
Date	Date; format: yyyy-mm-dd	unitless	date
GMT_Time	Time (GMT); format: hh:mm:ss	unitless	time_gmt
Local_Time	Local time; format: hh:mm:ss	unitless	time_local
Lat	latitude	decimal degrees	lat
Long	longitude	decimal degrees	lon
Temp	temperature	degrees Celsius	temp
DIC	dissolved inorganic carbon	micromoles per kilogram (umol kg-1)	DIC
TA	total alkalinity	micromoles per kilogram (umol kg-1)	TALK
pH	pH	total scale	pH
fCO2	carbon dioxide fugacity	microatmospheres (uatm)	fCO2
Omega_Ar	aragonite saturation state	unitless	OM_ar
p_dens	potenial density	kilograms per cubic meter (kg m-3)	density
O2	dissolved oxygen	milliliters per liter (ml l-1)	O2
NO3	nitrate	micromolar (uM)	NO3
HPO4	phosphate	micromolar (uM)	PO4
HSIO3	silicate	micromolar (uM)	SiO3
NH4	ammonia	micromolar (uM)	NH4
NO2	nitrite	micromolar (uM)	NO2
Urea	urea	micromolar (uM)	Urea
ISO_DateTime_GMT	Date and time (GMT) formatted to ISO 8601 standard. Format: yyyy-mm-ddTHH:MM:SSZ	yyyy-MM-dd'T'HH:mm:ss	ISO_DateTime_UTC

Database

Contribute Data

Dataset: Biogeochemistry FGBRR16
Deployment: FGB-RR16

Dataset acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: Biogeochemistry FGBRR16Deployment: FGB-RR16

Dataset acquisition description

Dataset Processing Description

Dataset: Biogeochemistry FGBRR16
Deployment: FGB-RR16