gov.noaa.nodc:0202076 eng utf8 dataset NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact HTTPS NOAA Contact Information Information for contacts at NCEI. information custodian 2025-05-16T15:50:30Z ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) Water speed, acoustic echo intensity from moored ADCP and water temperature, conductivity, and other parameters taken by CTD from research vessels Strickland and Heron in coastal waters of southeast Alaska and British Columbia from 2015-06-14 to 2015-06-16 (NCEI Accession 0202076) 2019-09-12 publication 2019-09-10 creation NOAA National Centers for Environmental Information gov.noaa.nodc:0202076 NCEI Archive Management System 0202076 NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact HTTPS NCEI Contact Information Information for contacts at NCEI. information publisher Sophie Hage University of Southampton sophie.hage@soton.ac.uk https://www.southampton.ac.uk/ HTTPS University of Southampton website Institution web page information resourceProvider University of Southampton https://www.southampton.ac.uk/ HTTPS University of Southampton website Institution web page information resourceProvider Sophie Hage University of Southampton sophie.hage@soton.ac.uk https://www.southampton.ac.uk/ HTTPS University of Southampton website Institution web page information pointOfContact Matthieu Cartigny Durham University matthieu.j.cartigny@durham.ac.uk https://www.durham.ac.uk/ HTTPS Durham University website Institution web page information collaborator Hage, Sophie University of Southampton https://www.southampton.ac.uk/ HTTPS University of Southampton website Institution web page information author Cartigny, Matthieu J.B. Durham University https://www.durham.ac.uk/ HTTPS Durham University website Institution web page information author Sumner, Esther J. University of Southampton https://www.southampton.ac.uk/ HTTPS University of Southampton website Institution web page information author Clare, Michael A. National Oceanography Centre, Southampton https://noc.ac.uk/ HTTPS National Oceanography Centre (NOC) website Institution web page information author Hughes Clarke, John E. University of New Hampshire author Talling, Peter J. Durham University https://www.durham.ac.uk/ HTTPS Durham University website Institution web page information author Lintern, D. Gwyn Geological Survey of Canada http://www.nrcan.gc.ca/earth-sciences/science/geology/gsc/17100 HTTP Geological Survey of Canada (NRCan-GSC) website Institution web page information author Simmons, Stephen M. University of Hull https://www.hull.ac.uk/work-with-us/research/talk-to-our-team HTTPS University of Hull website Institution web page information author Silva Jacinto, Ricardo IFREMER https://www.ifremer.fr/ HTTPS Ifremer website Institution web page information author Vellinga, Age J. University of Southampton https://www.southampton.ac.uk/ HTTPS University of Southampton website Institution web page information author Allin, Joshua R. Geotek Ltd author Azpiroz-Zabala, Maria Delft University of Technology author Gales, Jenny A. University of Plymouth http://www.plymouth.ac.uk HTTP University of Plymouth website Institution web page information author Hizzett, Jamie L. University of Southampton https://www.southampton.ac.uk/ HTTPS University of Southampton website Institution web page information author Hunt, James E. National Oceanography Centre, Southampton https://noc.ac.uk/ HTTPS National Oceanography Centre (NOC) website Institution web page information author Mozzato, Alessandro University of Southampton https://www.southampton.ac.uk/ HTTPS University of Southampton website Institution web page information author Parsons, Daniel R. University of Hull https://www.hull.ac.uk/work-with-us/research/talk-to-our-team HTTPS University of Hull website Institution web page information author Pope, Ed L. Durham University https://www.durham.ac.uk/ HTTPS Durham University website Institution web page information author Stacey, Cooper D. Geological Survey of Canada http://www.nrcan.gc.ca/earth-sciences/science/geology/gsc/17100 HTTP Geological Survey of Canada (NRCan-GSC) website Institution web page information author Symons, William O. CGG Robertson author Vardy, Mark E. National Oceanography Centre, Southampton https://noc.ac.uk/ HTTPS National Oceanography Centre (NOC) website Institution web page information author Watts, Camilla University of Southampton https://www.southampton.ac.uk/ HTTPS University of Southampton website Institution web page information author University of Southampton https://www.southampton.ac.uk/ HTTPS University of Southampton website Institution web page information contributor tableDigital This dataset contains water conductivity and temperature casts collected by CTD from the research vessel Heron. Voltage profiles were measured by an optical backscatter probe deployed from research vessel Heron. ADCP instrument was deployed 30 m above the seabed, suspended from a fixed vessel (research vessel Strickland). The research vessel Strickland was moored (using 4 anchors) above the central submarine channel downstream of the Squamish delta. File Beamave_EA.txt contains the echo intensity averaged between four ADCP beams in counts. Echo intensity was used to derive the concentration of suspended sediment from 30 m to 60 m water depth, using an acoustic inversion method and physical samples for calibration. File vmag.txt contains the magnitude of velocity in m/s. These data were used to obtain the turbidity current measured on 15th June 2015. Data are in ASCII format. These data were collected to support the study of Hage et al., Direct monitoring reveals initiation of turbidity currents from extremely dilute river plumes, accepted, Geophysical Research Letters completed historicalArchive NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact HTTPS NCEI Contact Information Information for contacts at NCEI. information pointOfContact asNeeded https://www.ncei.noaa.gov/access/metadata/landing-page/bin/gfx?id=gov.noaa.nodc:0202076 Preview graphic PNG 0202076 NCEI ACCESSION NUMBER 2019-09-07 publication CONDUCTIVITY CURRENT SPEED DEPTH - OBSERVATION WATER TEMPERATURE theme NODC DATA TYPES THESAURUS ADCP CTD instrument NODC INSTRUMENT TYPES THESAURUS in situ physical theme NODC OBSERVATION TYPES THESAURUS HERON STRICKLAND platform NODC PLATFORM NAMES THESAURUS University of Southampton dataCentre NODC COLLECTING INSTITUTION NAMES THESAURUS University of Southampton dataCentre NODC SUBMITTING INSTITUTION NAMES THESAURUS Coastal Waters of Southeast Alaska and British Columbia place NODC SEA AREA NAMES THESAURUS oceanography theme WMO_CategoryCode 2012-09-15 publication EARTH SCIENCE > OCEANS > OCEAN CIRCULATION > OCEAN CURRENTS EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE EARTH SCIENCE > OCEANS > SALINITY/DENSITY > CONDUCTIVITY theme Global Change Master Directory (GCMD) Science Keywords 2026 revision 24 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page 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 information custodian ADCP > Acoustic Doppler Current Profiler CTD > Conductivity, Temperature, Depth instrument Global Change Master Directory (GCMD) Instrument Keywords 2026 revision 24 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page 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 information custodian HERON (ICES code: 31HE) STRICKLAND (ICES code: 31IZ) platform ICES/SeaDataNet Ship Codes OCEAN > PACIFIC OCEAN > NORTH PACIFIC OCEAN place Global Change Master Directory (GCMD) Location Keywords 2026 revision 24 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page 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 information custodian EHXMTX Send2NCEI Submission Package ID accessLevel: public otherRestrictions Cite as: Hage, Sophie; Cartigny, Matthieu J.B.; Sumner, Esther J.; Clare, Michael A.; Hughes Clarke, John E.; Talling, Peter J.; Lintern, D. Gwyn; Simmons, Stephen M.; Silva Jacinto, Ricardo; Vellinga, Age J.; Allin, Joshua R.; Azpiroz-Zabala, Maria; Gales, Jenny A.; Hizzett, Jamie L.; Hunt, James E.; Mozzato, Alessandro; Parsons, Daniel R.; Pope, Ed L.; Stacey, Cooper D.; Symons, William O.; Vardy, Mark E.; Watts, Camilla (2019). Water speed, acoustic echo intensity from moored ADCP and water temperature, conductivity, and other parameters taken by CTD from research vessels Strickland and Heron in coastal waters of southeast Alaska and British Columbia from 2015-06-14 to 2015-06-16 (NCEI Accession 0202076). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0202076. Accessed [date]. Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives. otherRestrictions Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose. Hage, S., Cartigny, M. J. B., Sumner, E. J., Clare, M. A., Hughes Clarke, J. E., Talling, P. J., Lintern, D. G., Simmons, S. M., Silva Jacinto, R., Vellinga, A. J., Allin, J. R., Azpiroz‐Zabala, M., Gales, J. A., Hizzett, J. L., Hunt, J. E., Mozzato, A., Parsons, D. R., Pope, E. L., Stacey, C. D., … Watts, C. (2019). Direct Monitoring Reveals Initiation of Turbidity Currents From Extremely Dilute River Plumes. Geophysical Research Letters, 46(20), 11310–11320. https://doi.org/10.1029/2019gl084526 2019-10-28 publication International DOI Foundation (IDF) https://doi.org/10.1029/2019gl084526 https://doi.org/10.1029/2019gl084526 HTTPS https://doi.org/10.1029/2019gl084526 related journal article information Hage, Sophie National Oceanography Centre Southampton Southampton UK author Cartigny, Matthieu J.B. Department of Geography Durham University Durham UK author Sumner, Esther J. School of Ocean and Earth Sciences University of Southampton Southampton UK author Clare, Michael A. National Oceanography Centre Southampton Southampton UK author Hughes Clarke, John E. Center for Coastal and Ocean Mapping University of New Hampshire Durham NH USA author Talling, Peter J. Department of Geography Durham University Durham UK author Lintern, D. Gwyn Geological Survey of Canada Natural Resources Canada Sidney British Columbia Canada author Simmons, Stephen M. Energy and Environment Institute University of Hull Hull UK author Silva Jacinto, Ricardo Marine Geosciences Unit IFREMER Centre de Brest Plouzané France author Vellinga, Age J. School of Ocean and Earth Sciences University of Southampton Southampton UK author Allin, Joshua R. Geotek Ltd Daventry UK author Azpiroz‐Zabala, Maria Faculty of Civil Engineering and Geosciences Delft University of Technology Delft The Netherlands author Gales, Jenny A. School of Biological and Marine Sciences University of Plymouth Plymouth UK author Hizzett, Jamie L. School of Ocean and Earth Sciences University of Southampton Southampton UK author Hunt, James E. National Oceanography Centre Southampton Southampton UK author Mozzato, Alessandro School of Ocean and Earth Sciences University of Southampton Southampton UK author Parsons, Daniel R. Energy and Environment Institute University of Hull Hull UK author Pope, Ed L. Department of Geography Durham University Durham UK author Stacey, Cooper D. Geological Survey of Canada Natural Resources Canada Sidney British Columbia Canada author Symons, William O. CGG Robertson North Wales UK author Vardy, Mark E. National Oceanography Centre Southampton Southampton UK author Watts, Camilla School of Ocean and Earth Sciences University of Southampton Southampton UK author American Geophysical Union (AGU) publisher documentDigital Geophysical Research Letters 46(20) ISSN 0094-8276, ISSN 1944-8007, pp. 11310-11320 crossReference sciencePaper eng; USA utf8 environment oceans -123.206 -123.178 49.674 49.6818 2015-06-14 2015-06-16 NOAA National Centers for Environmental Information +1-301-713-3277 ncei.info@noaa.gov pointOfContact In most cases, electronic downloads of the data are free. However, fees may apply for custom orders, data certifications, copies of analog materials, and data distribution on physical media. Contact NCEI for other distribution options and instructions. Originator data format 251.024 https://www.ncei.noaa.gov/archive/accession/0202076 HTTPS Web browser NCEI Dataset Landing Page Navigate directly to the URL for a descriptive web page with download links. information https://www.ncei.noaa.gov/archive/accession/oas/202076 HTTPS Web browser Descriptive Information Navigate directly to the URL for a descriptive web page with download links. information https://www.ncei.noaa.gov/archive/accession/download/202076 HTTPS Web browser HTTPS Navigate directly to the URL for data access and direct download. download ftp://ftp-oceans.ncei.noaa.gov/nodc/archive/arc0144/0202076/ FTP Any FTP client FTP 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). download dataset NCEI Accession 0202076 v1.1 was published. 2019-09-12T22:20:39Z NCEI Accession 0202076 v1.1 publication https://www.ncei.noaa.gov/archive/accession/0202076/1.1 HTTPS NCEI Accession 0202076 v1.1 published 2019-09-12T22:20:39Z download dataset Parameter or Variable: CONDUCTIVITY (measured); Units: PSU; Observation Category: in situ; Sampling Instrument: CTD Parameter or Variable: TEMPERATURE - WATER - CONTINUOUS MEASUREMENT [WATER TEMPERATURE] (measured); Units: degrees Celsius; Observation Category: in situ; Sampling Instrument: CTD Parameter or Variable: DEPTH - BOTTOM (measured); Units: meter; Observation Category: in situ; Sampling Instrument: CTD Parameter or Variable: Voltage (measured); Units: volt; Observation Category: in situ; Sampling Instrument: Optical backscatter probe Parameter or Variable: velocity (measured); Units: m/s; Observation Category: in situ; Sampling Instrument: ADCP Parameter or Variable: Echo Intensity (measured); Units: count; Observation Category: in situ; Sampling Instrument: ADCP asNeeded Metadata are developed, maintained and distributed by NCEI. Updates are performed as needed to maintain currentness. NOAA National Centers for Environmental Information custodian ADCP ADCP Acoustic Doppler Current Profiler The Acoustic Doppler Current Profiler (ADCP) measures currents beneath a ship while underway. Sound signals sent from the moving ship bounce back to receivers aboard the ship. This provides a profile of water movement relative to the ship-precise modern navigation, allowing the ship's motion to be subtracted from the data. These devices are also used on moorings and profilers and, along with acoustic backscattering, measure animal biomass. Particles in the path of the sound waves, mostly plankton, reflect a small part of the sound energy back toward receivers, allowing researchers to make remote estimates of the sizes and numbers of animals present in the water column. Before the 1970's, the most technologically advanced instrument used to measure water velocity was known as a Doppler speed log. This evolved into the first commercial ADCP, produced in the mid-1970's, which used averaging. Later in the 1970's, the first vessel-mounted ADCP was developed to measure water velocity more accurately and to allow measurement in range cells over a depth profile. As instruments evolved, so did new techniques in Doppler signal processing. Initially, Doppler speed logs used simple analog signal processing methods, which are still used in some commercial speed logs today. However, the first ADCPs incorporated analog-to-digital signal conversion over a narrow communication bandwidth. Around 1990, this technique was developed into broadband signal processing. Since then, broadband ADCPs have been able to generate very accurate, real-time velocity measurements. CTD CTD Conductivity-Temperature-Depth probe HERON HERON STRICKLAND STRICKLAND