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    • CODAS Data from Oliktok Point, Beaufort Sea, Alaska

    Metadata Updated: January 20, 2025

    Cryosphere/Ocean Distributed Acoustic Sensing (CODAS) data collected from the Beaufort Sea, Alaska, using ~37.4 km of dark telecommunications fiber located at Oliktok Point, Alaska. Data were collected with a Silixa iDAS, using 10 m gauge length, 2 m spatial resolution, and 1000 Hz sample rate.

    Provided here are the DAS-recorded time series for the rapid refreeze event described in Baker & Abbott (2022) (see link below). This covers a date range of 2021-11-10 15:00 UTC to 2021-11-11 17:00 UTC. Data have been decimated to 100 Hz and 20 m (i.e., every 10th channel for 1831 channels, total), as used in Baker & Abbott (2022). Data have been extracted from raw format into 1-hour long .sac* files and organized into directories by channel number, spanning channels 100 to 18400. Time series units are nano-strainrate (nm/m/s).

    For distribution, data have been compressed into .zip files containing all time series files for 100 channels.

    *For information on the Seismic Analysis Code (SAC) file format: https://seiscode.iris.washington.edu/projects/sac

    Access & Use Information

    Public: This dataset is intended for public access and use. License: Creative Commons Attribution

    Downloads & Resources

    Dates

    Metadata Created Date January 11, 2025
    Metadata Updated Date January 20, 2025

    Metadata Source

    Harvested from OpenEI data.json

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date January 11, 2025
    Metadata Updated Date January 20, 2025
    Publisher Sandia National Laboratories
    Maintainer
    Doi 10.15473/2205673
    Identifier https://data.openei.org/submissions/8033
    Data First Published 2023-08-08T06:00:00Z
    Data Last Modified 2024-07-16T17:35:34Z
    Public Access Level public
    Bureau Code 019:20
    Metadata Context https://openei.org/data.json
    Metadata Catalog ID https://openei.org/data.json
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Data Quality True
    Datagov Dedupe Retained 20250120171954
    Harvest Object Id 91f33d57-b371-4912-a43f-4ce7e525450c
    Harvest Source Id 7cbf9085-0290-4e9f-bec1-91653baeddfd
    Harvest Source Title OpenEI data.json
    Homepage URL https://mhkdr.openei.org/submissions/438
    License https://creativecommons.org/licenses/by/4.0/
    Old Spatial {"type":"Polygon","coordinates":-150.5,70.4,-149.5,70.4,-149.5,70.9,-150.5,70.9,-150.5,70.4}
    Program Code 019:009
    Projectlead Bill McShane
    Projectnumber NA0003525
    Projecttitle Cryosphere/Ocean Distributed Acoustic Sensing
    Source Datajson Identifier True
    Source Hash 962bb055d903267b494671b1d4c45455251aec3eb3a16bc3308089f7ef85ff09
    Source Schema Version 1.1
    Spatial {"type":"Polygon","coordinates":-150.5,70.4,-149.5,70.4,-149.5,70.9,-150.5,70.9,-150.5,70.4}

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