In-situ beam attenuation, particle size distribution, and other measurements collected from moored LISST sensors in Tufts Cove during the Halifax Joint Learning Opportunity from 2024-09-25 to 2025-03-11 (NCEI Accession 0304369)

Published by NOAA National Centers for Environmental Information | National Oceanic and Atmospheric Administration, Department of Commerce | Metadata Last Checked: January 29, 2026 | Last Modified: 2025-05-19T00:00:00.000+00:00

This dataset contains long time-series measurements from multiple LISST sensors (Sequoia Scientific, Inc.) collected during an ocean alkalinity enhancement (OAE) field trial conducted by Planetary Technologies in collaboration with Dalhousie University in Halifax, Nova Scotia, Canada. This dataset was collected under a Joint Learning Opportunity (JLO) funded by Carbon to Sea and COVE. The sensors were deployed to provide direct, in-situ measurements of particles and particle properties (e.g., size, concentration) to (1) address open questions related to alkaline feedstock fate (e.g., accumulation, dissolution, aggregation) and environmental impacts from alkalinity dosing (e.g., secondary precipitation) and (2) support the refinement and validation of models used to predict alkaline feedstock transport and dissolution kinetics. Three different LISST sensors (LISST-Tau, LISST-OST, and LISST-200X) were mounted to a mooring for different durations throughout the OAE field trial from September 2024 to March 2025. The mooring was located near the powerplant outflow at Tufts Cove in the mixing zone where alkalinity was being dosed. The sensors measured beam attenuation, diffuse attenuance, particle size distribution, mean particle diameter, and other variables. Additional information about the sensor deployment, measurement parameters, data format, and processing can be found in the included supplemental document.

Find Related Datasets

Click any tag below to search for similar datasets

Complete Metadata

@type	dcat:Dataset
accessLevel	non-public
contactPoint	{ "fn": "NOAA National Centers for Environmental Information", "@type": "vcard:Contact", "hasEmail": "mailto:ncei.info@noaa.gov" }
describedByType	application/octet-steam
description	This dataset contains long time-series measurements from multiple LISST sensors (Sequoia Scientific, Inc.) collected during an ocean alkalinity enhancement (OAE) field trial conducted by Planetary Technologies in collaboration with Dalhousie University in Halifax, Nova Scotia, Canada. This dataset was collected under a Joint Learning Opportunity (JLO) funded by Carbon to Sea and COVE. The sensors were deployed to provide direct, in-situ measurements of particles and particle properties (e.g., size, concentration) to (1) address open questions related to alkaline feedstock fate (e.g., accumulation, dissolution, aggregation) and environmental impacts from alkalinity dosing (e.g., secondary precipitation) and (2) support the refinement and validation of models used to predict alkaline feedstock transport and dissolution kinetics. Three different LISST sensors (LISST-Tau, LISST-OST, and LISST-200X) were mounted to a mooring for different durations throughout the OAE field trial from September 2024 to March 2025. The mooring was located near the powerplant outflow at Tufts Cove in the mixing zone where alkalinity was being dosed. The sensors measured beam attenuation, diffuse attenuance, particle size distribution, mean particle diameter, and other variables. Additional information about the sensor deployment, measurement parameters, data format, and processing can be found in the included supplemental document.
distribution	[ { "@type": "dcat:Distribution", "title": "Project Metadata", "accessURL": "https://www.ncei.noaa.gov/data/oceans/ncei/ocads/metadata/0304369.html", "description": "Navigate directly to the URL for a descriptive web page with download links.", "describedByType": "application/octet-steam" }, { "@type": "dcat:Distribution", "title": "NCEI Dataset Landing Page", "mediaType": "placeholder/value", "description": "Navigate directly to the URL for a descriptive web page with download links.", "downloadURL": "https://doi.org/10.25921/kfb7-qw20", "describedByType": "application/octet-steam" }, { "@type": "dcat:Distribution", "title": "Descriptive Information", "mediaType": "placeholder/value", "description": "Navigate directly to the URL for a descriptive web page with download links.", "downloadURL": "https://www.ncei.noaa.gov/archive/accession/oas/304369", "describedByType": "application/octet-steam" }, { "@type": "dcat:Distribution", "title": "HTTPS", "mediaType": "placeholder/value", "description": "Navigate directly to the URL for data access and direct download.", "downloadURL": "https://www.ncei.noaa.gov/archive/accession/download/304369", "describedByType": "application/octet-steam" }, { "@type": "dcat:Distribution", "title": "FTP", "mediaType": "placeholder/value", "description": "These data are available through the File Transfer Protocol (FTP). FTP is no longer supported by most internet browsers. You may copy and paste the FTP link to the data into an FTP client (e.g., FileZilla or WinSCP).", "downloadURL": "ftp://ftp-oceans.ncei.noaa.gov/nodc/archive/arc0235/0304369/", "describedByType": "application/octet-steam" }, { "@type": "dcat:Distribution", "title": "https://www.ncei.noaa.gov/products/ocean-carbon-acidification-data-system", "mediaType": "placeholder/value", "description": "OCADS website", "downloadURL": "https://www.ncei.noaa.gov/products/ocean-carbon-acidification-data-system", "describedByType": "application/octet-steam" }, { "@type": "dcat:Distribution", "title": "https://www.ncei.noaa.gov/data/oceans/ncei/ocads/metadata/0304370.html", "accessURL": "https://www.ncei.noaa.gov/data/oceans/ncei/ocads/metadata/0304370.html", "description": "Related data", "describedByType": "application/octet-steam" }, { "@type": "dcat:Distribution", "title": "GCMD Keyword Forum Page", "mediaType": "placeholder/value", "description": "Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords", "downloadURL": "https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords", "describedByType": "application/octet-steam" }, { "@type": "dcat:Distribution", "title": "NCEI Contact Information", "mediaType": "placeholder/value", "description": "Information for contacts at NCEI.", "downloadURL": "https://www.ncei.noaa.gov/contact", "describedByType": "application/octet-steam" } ]
identifier	gov.noaa.nodc:0304369
issued	2025-05-16T00:00:00.000+00:00
keyword	[ "0304369", "BEAM ATTENUATION COEFFICIENT", "DEPTH - OBSERVATION", "WATER TEMPERATURE", "bottle", "mooring", "temperature sensor", "titrator", "optical", "physical", "time series", "Sequoia Scientific, Inc.", "Sequoia Scientific, Inc.", "Ocean Carbon and Acidification Data System (OCADS)", "East Coast - US/Canada", "North Atlantic Ocean", "oceanography", "Ocean Carbon and Acidification Data System (OCADS) Project", "Carbon to Sea and COVE's 2024 Ocean Alkalinity Enhancement (OAE) Joint Learning Opportunity (JLO)", "EARTH SCIENCE > OCEANS > OCEAN OPTICS > ATTENUATION/TRANSMISSION", "EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE", "Time series", "Beamc_200X", "Beamc_Tau", "Depth_200X", "DiffAttenuance_OST", "Meandiam_200X", "PSD_200X", "Temperature_200X", "Totconc_200X", "Transmission_200X", "TEMPERATURE SENSORS > TEMPERATURE SENSORS", "OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN", "Halifax Harbour", "North Atlantic Ocean", "Tufts Cove" ]
landingPage	https://www.ncei.noaa.gov/contact
language	[]
license	https://creativecommons.org/publicdomain/zero/1.0/
modified	2025-05-19T00:00:00.000+00:00
publisher	{ "name": "NOAA National Centers for Environmental Information", "@type": "org:Organization" }
references	[ "https://www.ncei.noaa.gov/products/ocean-carbon-acidification-data-system", "https://www.ncei.noaa.gov/data/oceans/ncei/ocads/metadata/0304370.html" ]
rights	otherRestrictions
spatial	-63.59542,44.674915,-63.595444,44.674917
temporal	2024-09-25T00:00:00+00:00/2025-03-11T00:00:00+00:00
title	In-situ beam attenuation, particle size distribution, and other measurements collected from moored LISST sensors in Tufts Cove during the Halifax Joint Learning Opportunity from 2024-09-25 to 2025-03-11 (NCEI Accession 0304369)