Description
In September 2013, an experiment using Distributed Acoustic Sensing (DAS) was conducted at Garner Valley, a test site of the University of California Santa Barbara (Lancelle et al., 2014). This submission includes one 45 kN shear shaker (called "large shaker" on the basemap) test for three different measurement systems. The shaker swept from a rest, up to 10 Hz, and back down to a rest over 60 seconds.
Lancelle, C., N. Lord, H. Wang, D. Fratta, R. Nigbor, A. Chalari, R. Karaulanov, J. Baldwin, and E. Castongia (2014), Directivity and Sensitivity of Fiber-Optic Cable Measuring Ground Motion using a Distributed Acoustic Sensing Array (abstract # NS31C-3935), AGU Fall Meeting.
Resources
| Name | Format | Description | Link |
|---|---|---|---|
| AGU Fall Meeting Abstract | HTML | Includes the abstract for "Directivity and Sensitivity of Fiber-Optic Cable Measuring Ground Motion using a Distributed Acoustic Sensing Array" report that was presented at the 2014 AGU Fall Meeting. | Open resource |
| Accelerometer - Mini-Me.csv | CSV | Accelerometer data for four sensors on the Mini-Me structure. Individual columns are described in the file. The sample rate is 1000 samples per second. | Open resource |
| Accelerometer - Fiber-Optic Cable.csv | CSV | Accelerometer data for the four sensors along one of the fiber-optic cable lines. Individual columns are described in the file. The sample rate is 1000 samples per second. | Open resource |
| L28 Geophone Data.dat | DAT | L28 Geophone data. The description of the columns is in the “Geophone_Header.csv” file. The sample rate is 1000 samples per second. | Open resource |
| Basemap.pdf | Map of the Garner Valley field site including source locations | Open resource | |
| Corrected DAS Channel Locaitons.csv | CSV | x,y coordinates of each DAS channel in the fiber-optic cable. | Open resource |
| Geophone Header.csv | CSV | Description of the columns in the "L28 Geophone Data.dat" file for the geophones. | Open resource |
| Large Shaker Data.sgy | Unknown | Each column represents a time series for a different channel in the cable. The fiber starts in the hut, moves out from there to the end of the array, and then doubles back to the hut in the same casing (see basemap.pdf). There is a new channel approximately every meter, the locations of which are denoted in “Corrected DAS Channel Locations.” The sample rate is 200 samples per second. | Open resource |
| Station Locations.csv | CSV | x,y coordinates of all instruments and active tests, excluding the DAS channels. | Open resource |
| File Names | HTML | List of filenames of the 1000 samples per second data files. | Open resource |