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Dataset: SWARM AMLR moorings - acoustic data

DOI:10.26008/1912/bco-dmo.872729.1
Spatial Extent: N:-64.8124 E:-64.0376 S:-64.864 W:-64.2119
Temporal Extent: 2020-01-06 - 2020-03-07
Project: 
Principal Investigator: 
Joshua Kohut (University of Delaware)
Co-Principal Investigator: 
George Cutter (NOAA Fisheries Antarctic Ecosystem Research Division)
Christian Reiss (NOAA Fisheries Antarctic Ecosystem Research Division)
Contact: 
Katherine Hudson
BCO-DMO Data Manager: 
Shannon Rauch (Woods Hole Oceanographic Institution, WHOI BCO-DMO)
Version: 
1
Version Date: 
2022-04-12
Restricted: 
No
Validated: 
Yes
Current State: 
Final no updates expected

Acoustic data from two subsurface moorings deployed near Palmer Deep Canyon from January to March 2020
Abstract: 
This dataset contains acoustic data from two subsurface moorings deployed near Palmer Deep Canyon from January to March 2020.

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Description

Each mooring has three data files associated with it:
1) an "_Sv" file containing the processed acoustic return from the mooring in volume backscattering strength in decibels (dB) from the 120 kHz narrowband echosounder in a matrix where rows represent single pings and columns indicate depth bins;
2) a "_dp" file representing the depth (in meters) of the depth bins for each return with the same dimensions as the "_Sv" file; and
3) a "_tm" file containing a vector of timestamps corresponding to each ping in seconds since Jan 1 1970 (POSIX), where the length of the vector is equivalent to the number of rows in each matrix.

These files are all available in the attached "all_moorings_files.tar.gz" file.

Data Files
File
all_moorings_files.tar.gz
(GZIP (.gz), 10.08 GB)
MD5:c994903679d89f43f5c5169965599315
This package contains 6 .csv files.

Those named starting with "AMLR1" are from the AMLR1 mooring, located on the western (AMLR1) side of Palmer Deep Canyon at 345 meters. AMLR1 was deployed at -64.2119, -64.8124 (longitude/latitude).

Those named starting with "AMLR2" are from the AMLR2 mooring, located on the eastern (AMLR1) side of Palmer Deep Canyon at 400 meters. AMLR2 was deployed at -64.0376, -64.864 (longitude/latitude).

Each mooring has three data files associated with it:
1) an "_Sv" file containing the processed acoustic return from the mooring in volume backscattering strength in decibels (dB) from the 120 kHz narrowband echosounder in a matrix where rows represent single pings and columns indicate depth bins;
2) a "_dp" file representing the depth (in meters) of the depth bins for each return with the same dimensions as the "_Sv" file; and
3) a "_tm" file containing a vector of timestamps corresponding to each ping in seconds since Jan 1 1970 (POSIX), where the length of the vector is equivalent to the number of rows in each matrix.
More Information about this dataset