Observations on explosion-triggered seismic events via fiber optic sensing at small scales
Abstract not provided.
Publications
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Jump to search filtersTracking sea-ice extent and detecting boats in the Beaufort Sea using Distributed Acoustic Sensing and Machine Learning
Abstract not provided.
Distributed Acoustic Sensing (DAS) of seafloor fiber optics enables meter-scale resolution of surface waves in the coastal ocean
Abstract not provided.
Utilizing Distributed Acoustic Sensing to Characterize Microseismicity within Arctic Sea Ice in the Beaufort Sea
Abstract not provided.
The Cryosphere/Ocean Distributed Acoustic Sensing (CODAS) Experiment
Distributed acoustic sensing (DAS) has a demonstrated potential for wide-scale and continuous in situ monitoring of near-surface environmental and anthropogenic processes. DAS is attractive for development as a multi-geophysical observatory due to the prevalence of existing fiber infrastructure in regions with environmental, cultural, or strategic significance. To evaluate the efficacy of this technology for monitoring of polar environmental processes, we collected DAS data from a 37-km long section of seafloor telecommunications fiber located on the continental shelf of the Beaufort Sea, Alaska. This experiment spanned eight, one-week, seasonally-distributed periods across two years. This was the first ever deployment of seafloor DAS beneath sea ice, and the first deployment in any marine environment to span multiple seasons. We recorded a variety of environmental and anthropogenic signals with demonstrable utility for the study of sea ice dynamics and tracking of ocean vessels and ice-traversing vehicles.
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
The changing Alaskan Arctic shelf: observing seasonal waves and landfast ice with increasing resolution
Abstract not provided.
Estimation of First-Year Sea Ice Thickness with Seafloor Distributed Acoustic Sensing Using Flexural-GravityWaves from Environmental and Anthropogenic Sources
Abstract not provided.
Using Distributed Acoustic and Temperature Sensing to Characterize the Rapidly Changing Nearshore Arctic Ocean (PEMDATS)
Abstract not provided.
Tracking sea ice extent in northern Alaska using Distributed Acoustic Sensing and Machine Learning
Abstract not provided.
Characterizing the Nearshore Arctic Seabed Using Distributed Acoustic and Temperature Sensing (DATS)
Abstract not provided.
Distributed Acoustic Sensing of Anthropogenic and Polar Environmental Signals
Abstract not provided.
Monitoring Arctic Coastal Processes with Seafloor Distributed Acoustic and Temperature Sensing
Abstract not provided.
Effects on Signal Propagation Across the Transition Between Dissimilar Optical Fibers for Distributed Acoustic Sensing Analysis
Abstract not provided.
Estimation of First-Year Sea Ice Thickness with Seafloor Distributed Acoustic Sensing
Abstract not provided.
Automated High-Resolution Tracking of Sea Ice Extent Offshore Oliktok Point, Alaska, using Distributed Acoustic Sensing and Machine Learning
Abstract not provided.
Evaluation of Ground Coupling Tests of a Fiber-Optic Cable at the Sandia Facility for Acceptance, Calibration, and Testing for Distributed Acoustic Sensing
Abstract not provided.
Sea Ice from the Ground Up Using Distributed Acoustic Sensing
Abstract not provided.
Rapid formation of pack ice in shallow coastal waters, as observed by seafloor distributed acoustic sensing
Abstract not provided.
Wind-driven flexural-gravity waves in first year sea ice as observed by a seafloor distributed acoustic senor deployed to the Beaufort Sea, Alaska
Abstract not provided.
Distributed acoustic sensing of seasonally variable environmental processes in the Beaufort Sea, Alaska
Abstract not provided.
Prospects for Distributed Acoustic Sensing of Polar Environmental Processes : Initial Results from the Beaufort Sea Alaska
Abstract not provided.
22 Results