CODAS Data from Oliktok Point, Beaufort Sea, Alaska

Description

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

Resources

Name Format Description Link
57 Every 10th DAS channel from 01100--02090 https://mhkdr.openei.org/files/438/Channels_01100-02090.zip
21 We present results from a multi-seasonal acquisition of DAS data on a seafloor cable in the Beaufort Sea, Alaska. https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2022GL099880
21 We show that ambient noise recorded by fiber optic sensing technology deployed in an Arctic shallow marine seafloor environment can track sea ice extent. https://doi.org/10.1785/0320230019
57 Every 10th DAS channel from 18100--18400 https://mhkdr.openei.org/files/438/Channels_18100-18400.zip
57 Every 10th DAS channel from 13100--14090 https://mhkdr.openei.org/files/438/Channels_13100-14090.zip
57 Every 10th DAS channel from 09100--10090 https://mhkdr.openei.org/files/438/Channels_09100-10090.zip
57 Every 10th DAS channel from 03100--04090 https://mhkdr.openei.org/files/438/Channels_03100-04090.zip
57 Every 10th DAS channel from 05100--06090 https://mhkdr.openei.org/files/438/Channels_05100-06090.zip
57 Every 10th DAS channel from 06100--07090 https://mhkdr.openei.org/files/438/Channels_06100-07090.zip
57 Every 10th DAS channel from 08100--09090 https://mhkdr.openei.org/files/438/Channels_08100-09090.zip
57 Every 10th DAS channel from 02100--03090 https://mhkdr.openei.org/files/438/Channels_02100-03090.zip
57 Every 10th DAS channel from 04100--05090 https://mhkdr.openei.org/files/438/Channels_04100-05090.zip
57 Every 10th DAS channel from 10100--11090 https://mhkdr.openei.org/files/438/Channels_10100-11090.zip
57 Every 10th DAS channel from 17100--18090 https://mhkdr.openei.org/files/438/Channels_17100-18090.zip
57 Every 10th DAS channel from 07100--08090 https://mhkdr.openei.org/files/438/Channels_07100-08090.zip
57 Every 10th DAS channel from 00100--01090 https://mhkdr.openei.org/files/438/Channels_00100-01090.zip
57 Every 10th DAS channel from 14100--15090 https://mhkdr.openei.org/files/438/Channels_14100-15090.zip
57 Every 10th DAS channel from 12100--13090 https://mhkdr.openei.org/files/438/Channels_12100-13090.zip
57 Every 10th DAS channel from 15100--16090 https://mhkdr.openei.org/files/438/Channels_15100-16090.zip
57 Every 10th DAS channel from 16100--17090 https://mhkdr.openei.org/files/438/Channels_16100-17090.zip
57 Every 10th DAS channel from 11100--12090 https://mhkdr.openei.org/files/438/Channels_11100-12090.zip
21 We demonstrate a novel method for persistent observation of wave-ice interactions using distributed acoustic sensing (DAS) along existing seafloor fiber optic telecommunications cables. https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2023GL105243
21 To evaluate the efficacy of DAS for continuous and in situ monitoring of polar environmental processes, we are collecting DAS data from a 40-km long section of seafloor telecommunications fiber located on the continental shelf of the Beaufort Sea, Alaska. https://fasttimesonline.co/distributed-acoustic-sensing-of-seasonal-wavefields-in-the-coastal-polar-waters-of-the-beaufort-sea-alaska/

Tags

  • environment
  • alaska
  • beaufort-sea
  • distributed-acoustic-sensing
  • cryosphere
  • marine
  • codas
  • raw-data
  • oliktok-point

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