Dataset: Mini-SIA 1 phosphate

Name: Phosphate in marine waters during the international inter calibration cruise from March 17th to March 28th, 2017
Published: 2020-04-10
Keywords: oceans

View Data: Data not available yet

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Spatial Extent: N:-45.92617 E:142.38812 S:-46.72438 W:141.95212

Temporal Extent: 2017-03-18 - 2017-03-25

Project:

Automated Instrumentation for Chemical Oceanography Based on Sequential Injection Lab-On-valve Technology (SI-LOV)

Principal Investigator:

Christopher I. Measures (University of Hawaiʻi at Mānoa, SOEST)

Co-Principal Investigator:

Mariko Hatta (University of Hawai'i, UH)

Contact:

Mariko Hatta (University of Hawai'i, UH)

BCO-DMO Data Manager:

Mathew Biddle (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Version:

Version Date:

2020-04-10

Restricted:

Validated:

Current State:

Data not available

Phosphate in marine waters during the international inter calibration cruise from March 17th to March 28th, 2017

Abstract:

Phosphate in marine waters during the international inter calibration cruise (CSIRO, March 17th to March 28th, 2017). Seawater is collected in 12L Ocean Test Equipment “Niskin” bottles that have been lowered open to the required depth and closed on ascent. The nutrients are sampled after the dissolved gases and salinity sampling.

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Description

Methods & Sampling

Seawater is collected in 12L Ocean Test Equipment “Niskin” bottles that have been lowered open to the required depth and closed on ascent. The nutrients are sampled after the dissolved gases and salinity sampling. Wear vinyl gloves that have been rinsed with MQ water. Do not touch the spigot when sampling. Nutrient tubes used: Sarstedt 30 mL tubes, 62.543.001.
Nutrient sampling steps: Pre-label nutrient tubes with rosette position. Start sampling at rosette position 1. Open Niskin spigot with the collar and rinse nutrient tubes and caps three times in the sample stream. Fill the nutrient tubes then close the Niskin Spigot with the collar. Reduce the sample volume in the nutrient tube to approximately 30 mL by gently flicking out the access. Cap tubes and store in rack. Continue to the next rosette positon and repeat. When sampling is complete, store nutrient samples at 4°C in the fridge until assayed. Assay within 12 hours.

Data Processing Description

FloZF software

BCO-DMO Processing Notes:
- added conventional header with dataset name, PI name, version date
- modified parameter names to conform with BCO-DMO naming conventions

Supplemental Files

File
Phosphate analysis procedure by Mini-SIA 1 filename: NSF_2020_BCODMO_meta_data.docx (Octet Stream, 236.68 KB) MD5:73d47896a58f5e29088d4af5fd20b2ad This method is used for the determination of phosphate in marine waters during the international Intercalibration cruise (CSIRO, March 17th to March 28th, 2017).

More Information about this dataset

Funding Sources

Funding Source	Award Number
NSF Division of Ocean Sciences	OCE-1634463

Deployments

None available yet

Instruments

Spectrometer

Supplied Name: GlobalFIA miniSIA-1

Supplied Description:

The miniSIA-1 is equipped with

A USB-4000 Ocean Optics spectrometer configured to measure absorbance between 420 and 1000 nm
Two lights sources – a white LED and a Tungsten/Xenon lamp (used Tungsten/Xenon lamp)
Chem-on-Valve manifold mounted on a Valco valve and right angle drive and equipped with a 12 cm path length Garth flow cell
milliGAT pump
1 mL heated holding coil with PID-controlled heater (heated to 40°C)

The miniSIA-1 makes use of the Global FIA FloZF device control and data acquisition and manipulation software installed on a laptop computer.

Instrument Type

Generic Name: Spectrometer

Community Identifier: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0460/

Generic Description:

A spectrometer is an optical instrument used to measure properties of light over a specific portion of the electromagnetic spectrum.

Parameters

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

Supplied Name	Supplied description	Supplied Units	Standard Name
Cruise	cruise identifier	unitless	cruiseid
Station	station identifier	unitless	station
Date_Time	Date and time following ISO8601 format	yyyy-MM-dd'T'HH:mm:ss'Z'	ISO_DateTime_UTC
Lon	longitude with positive values indicating East	decimal degrees	lon
Lat	latitude with negative values indicating South	decimal degrees	lat
Bot_Depth	Bottom depth	meters (m)	depth_bottom
Pressure	Pressure	unknown	press
QF	Quality Flag	unitless	flag
Temperature	Water temperature	degrees Celsius (C)	temp
Pressure_QF	Quality flag for pressure observations	unitless	flag
Salinity	salinity	psu	sal
Salinity_QF	Quality flag for salinity observations	unitless	flag
Phosphate	phosphate	micromoles per liter (umol/L)	PO4
Phosphate_QF	Quality flag for phosphate observations	unitless	flag

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Dataset: Mini-SIA 1 phosphate