Dataset: MV1405 CTD seawater samples and locations

Name: Physical and chemical properties of surface seawater obtained by CTD from the R/V Melville (MV1405) cruise along the coast of California in July 2014.
Published: 2016-10-28
Keywords: oceans

Cite This Dataset

Project:

Collaborative Research: Investigating the Ecological Importance of Iron Storage in Diatoms (Diatom Iron Storage)

Principal Investigator:

Adrian Marchetti (University of North Carolina at Chapel Hill, UNC-Chapel Hill)

Contact:

Natalie Cohen (University of North Carolina at Chapel Hill, UNC-Chapel Hill)

BCO-DMO Data Manager:

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

Version:

Version Date:

2016-10-28

Restricted:

Validated:

Yes

Current State:

Final no updates expected

Physical and chemical properties of surface seawater obtained by CTD from the R/V Melville (MV1405) cruise along the coast of California in July 2014.

Abstract:

Physical and chemical properties of surface seawater obtained by CTD from the R/V Melville (MV1405) cruise along the coast of California in July 2014.

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Description

Physical and chemical properties of surface seawater obtained by CTD (5m) in close proximity to where seawater was collected for incubation experiments.

Data Processing Description

BCO-DMO Data Processing Notes:

-reformatted column names to comply with BCO-DMO standards

Data Files

File
CTD_seawaterSamples.csv (Comma Separated Values (.csv), 370 bytes) MD5:2fb87a673cc2792696fac128afda344e Primary data file for dataset ID 663717

More Information about this dataset

Funding Sources

Funding Source	Award Number
NSF Division of Ocean Sciences	OCE-1334935
NSF Division of Ocean Sciences	OCE-1334632

Deployments

Deployment	Synonyms	Start Date	Platform	Investigator
MV1405	IrnBru IronBru	2014-07-03	R/V Melville	Kenneth W. Bruland (Chief Scientist)	data info

Instruments

CTD - profiler

Supplied Name: CTD

Supplied Description:

Used to collect water samples

Instrument Type

Generic Name: CTD - profiler

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/130/

Generic Description:

The Conductivity, Temperature, Depth (CTD) unit is an integrated instrument package designed to measure the conductivity, temperature, and pressure (depth) of the water column. The instrument is lowered via cable through the water column. It permits scientists to observe the physical properties in real-time via a conducting cable, which is typically connected to a CTD to a deck unit and computer on a ship. The CTD is often configured with additional optional sensors including fluorometers, transmissometers and/or radiometers. It is often combined with a Rosette of water sampling bottles (e.g. Niskin, GO-FLO) for collecting discrete water samples during the cast.

This term applies to profiling CTDs. For fixed CTDs, see https://www.bco-dmo.org/instrument/869934.

GeoFish Towed near-Surface Sampler

Supplied Name: GeoFish Sampler

Supplied Description:

Used to collect seawater

Instrument Type

Generic Name: GeoFish Towed near-Surface Sampler

Acronym: GeoFish

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/31/

Generic Description:

The GeoFish towed sampler is a custom designed near surface (<2m) sampling system for the collection of trace metal clean seawater. It consists of a PVC encapsulated lead weighted torpedo and separate PVC depressor vane supporting the intake utilizing all PFA Teflon tubing connected to a deck mounted, air-driven, PFA Teflon dual-diaphragm pump which provides trace-metal clean seawater at up to 3.7L/min. The GeoFish is towed at up to 13kts off to the side of the vessel outside of the ship's wake to avoid possible contamination from the ship's hull. It was developed by Geoffrey Smith and Ken Bruland (University of California, Santa Cruz).

Pump

Supplied Name: Teflon dual-diaphragm pump

Supplied Description:

Pumped seawater directly into a positive pressure trace-metal clean bubble constructed in the main laboratory of the ship.

Instrument Type

Generic Name: Pump

Generic Description:

A pump is a device that moves fluids (liquids or gases), or sometimes slurries, by mechanical action. Pumps can be classified into three major groups according to the method they use to move the fluid: direct lift, displacement, and gravity pumps

Parameters

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

Supplied Name	Supplied description	Supplied Units	Standard Name
Q_ID	Incubation sample ID	unitless	sample
date	Date sampling occurred (GMT); mm/dd/yy	unitless	date
start_time	Time sampling occurred (GMT); HH:MM	unitless	time_gmt
lat_incubations	Latitude where water samples for incubations were collected; N is positive	decimal degrees	lat
lon_incubations	Longitude where water samples for incubations were collected; E is positive	decimal degrees	lon
lat_CTD	Latitude where CTD samples were collected; N is positive	decimal degrees	lat
lon_CTD	Longitude where CTD samples were collected; E is positive	decimal degrees	lon
temp	Temperature of water at CTD sampling site	celsius	temp
salinity	Salinity of water from CTD sampling site	practical salinity units (PSU)	sal
conductivity	Conductivity from CTD sampling site	uS/cm	cond
PAR	PAR from CTD sampling site	umol photons/square meter	PAR

Status message

Database

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Dataset: MV1405 CTD seawater samples and locations