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 |
|---|---|---|---|
| Rapid Refreezing of a Marginal Ice Zone Across a Seafloor Distributed Acoustic Sensor | HTML | We present results from a multi-seasonal acquisition of DAS data on a seafloor cable in the Beaufort Sea, Alaska. | Open resource |
| Observations of Ocean Surface Wave Attenuation in Sea Ice Using Seafloor Cables | HTML | We demonstrate a novel method for persistent observation of wave-ice interactions using distributed acoustic sensing (DAS) along existing seafloor fiber optic telecommunications cables. | Open resource |
| Tracking Local Sea Ice Extent in the Beaufort Sea Using Distributed Acoustic Sensing and Machine Learning | HTML | We show that ambient noise recorded by fiber optic sensing technology deployed in an Arctic shallow marine seafloor environment can track sea ice extent. | Open resource |
| Distributed Acoustic Sensing of Seasonal Wavefields in the Coastal Polar Waters of the Beaufort Sea | HTML | 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. | Open resource |
| Channels_00100-01090.zip | ZIP | Every 10th DAS channel from 00100--01090 | Open resource |
| Channels_01100-02090.zip | ZIP | Every 10th DAS channel from 01100--02090 | Open resource |
| Channels_02100-03090.zip | ZIP | Every 10th DAS channel from 02100--03090 | Open resource |
| Channels_03100-04090.zip | ZIP | Every 10th DAS channel from 03100--04090 | Open resource |
| Channels_04100-05090.zip | ZIP | Every 10th DAS channel from 04100--05090 | Open resource |
| Channels_05100-06090.zip | ZIP | Every 10th DAS channel from 05100--06090 | Open resource |
| Channels_06100-07090.zip | ZIP | Every 10th DAS channel from 06100--07090 | Open resource |
| Channels_07100-08090.zip | ZIP | Every 10th DAS channel from 07100--08090 | Open resource |
| Channels_08100-09090.zip | ZIP | Every 10th DAS channel from 08100--09090 | Open resource |
| Channels_09100-10090.zip | ZIP | Every 10th DAS channel from 09100--10090 | Open resource |
| Channels_10100-11090.zip | ZIP | Every 10th DAS channel from 10100--11090 | Open resource |
| Channels_11100-12090.zip | ZIP | Every 10th DAS channel from 11100--12090 | Open resource |
| Channels_12100-13090.zip | ZIP | Every 10th DAS channel from 12100--13090 | Open resource |
| Channels_13100-14090.zip | ZIP | Every 10th DAS channel from 13100--14090 | Open resource |
| Channels_14100-15090.zip | ZIP | Every 10th DAS channel from 14100--15090 | Open resource |
| Channels_15100-16090.zip | ZIP | Every 10th DAS channel from 15100--16090 | Open resource |
| Channels_16100-17090.zip | ZIP | Every 10th DAS channel from 16100--17090 | Open resource |
| Channels_17100-18090.zip | ZIP | Every 10th DAS channel from 17100--18090 | Open resource |
| Channels_18100-18400.zip | ZIP | Every 10th DAS channel from 18100--18400 | Open resource |