CODAS Data from Oliktok Point, Beaufort Sea, Alaska
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
Complete Metadata
| bureauCode |
[ "019:20" ] |
|---|---|
| dataQuality | true |
| DOI | 10.15473/2205673 |
| identifier | https://data.openei.org/submissions/8033 |
| issued | 2023-08-08T06:00:00Z |
| landingPage | https://mhkdr.openei.org/submissions/438 |
| programCode |
[ "019:009" ] |
| projectLead | Bill McShane |
| projectNumber | NA0003525 |
| projectTitle | Cryosphere/Ocean Distributed Acoustic Sensing |
| spatial | {"type":"Polygon","coordinates":[[[-150.5,70.4],[-149.5,70.4],[-149.5,70.9],[-150.5,70.9],[-150.5,70.4]]]} |
