Passive acoustic monitoring of Antarctic marine mammals
Progress Code: completed Statement: The Dates provided in temporal coverage are approximate only, and represent the beginning and end of the 2005 - 2012 Antarctic seasons. The latitudes and longitudes provided in spatial coverage are approximate only. The following information relates specifically t...
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ftands:oai:ands.org.au::2820591 2023-12-03T10:13:44+01:00 Passive acoustic monitoring of Antarctic marine mammals Spatial: westlimit=60; southlimit=-70.0; eastlimit=160; northlimit=-50.0 Spatial: uplimit=3000; downlimit=2 Temporal: From 2005-10-01 to 2012-03-31 https://researchdata.edu.au/passive-acoustic-monitoring-marine-mammals/2820591 unknown Australian Ocean Data Network https://researchdata.edu.au/passive-acoustic-monitoring-marine-mammals/2820591 ASAC_2683 AU/AADC > Australian Antarctic Data Centre, Australia biota oceans EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES > MAMMALS acoustics marine mammals monitoring SONOBUOYS ACOUSTIC RECEIVERS SHIPS AMD/AU CEOS AMD OCEAN > SOUTHERN OCEAN CONTINENT > ANTARCTICA GEOGRAPHIC REGION > POLAR dataset ftands 2023-11-06T23:51:52Z Progress Code: completed Statement: The Dates provided in temporal coverage are approximate only, and represent the beginning and end of the 2005 - 2012 Antarctic seasons. The latitudes and longitudes provided in spatial coverage are approximate only. The following information relates specifically to the Tangaroa.Sonobuoy.Log.xls file: National Instruments Card Gain is the amount of gain the sound card added to the signal. 1 gain means the input voltage range is from -5 to +5 volts 5 gain means the input voltage range is from -1 to +1 volts I think we ended up using a gain of 5 in most cases since even loud audio signals were typically between +/-1 V. Basically, these set the bounds/rails on what the sound card can read as part of an acoustic signal. If the signal is particularly intense and produces a higher voltage than +/-1 (in the case of a gain of 5) then the signal peaks or 'hits the rail' and is still recorded as a +/-1V signal (distorting the sound recorded). The voltage range of the audio signal is determined by a chain of things from the hydrophone sensitivity on the sonobuoy and how this is transmitted to the boat's receiver, and ultimately the sensitivity of the VHF receiver in converting the VHF signal back to an audio signal. Check the dataset for calibration files. The manual for the sound card can be found at the following website: http://www.ni.com/pdf/manuals/370503k.pdf 2. Unit for frequency should be Hz (hertz). 3. Depth is Meters 4. Yellow highlighted boxes are from sonobuoys that failed (i.e. they were deployed, but no or minimal useful audio signal was recorded from them) Taken from the 2008-2009 Progress Report: Field work: As described above, recovery attempts were made on 3 acoustic dataloggers that were deployed in 2007/8 along a line of longitude south of Tasmania (142 E) from just SW of Tasmania (44 S), to halfway between Tasmania and the Antarctic (54 S), to just off the Antarctic continental shelf (65 S). These instruments will be recovered during the 08/09 season. Unfortunately, ... Dataset Antarc* Antarctic Antarctica Southern Ocean Research Data Australia (Australian National Data Service - ANDS) Antarctic Southern Ocean The Antarctic |
institution |
Open Polar |
collection |
Research Data Australia (Australian National Data Service - ANDS) |
op_collection_id |
ftands |
language |
unknown |
topic |
biota oceans EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES > MAMMALS acoustics marine mammals monitoring SONOBUOYS ACOUSTIC RECEIVERS SHIPS AMD/AU CEOS AMD OCEAN > SOUTHERN OCEAN CONTINENT > ANTARCTICA GEOGRAPHIC REGION > POLAR |
spellingShingle |
biota oceans EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES > MAMMALS acoustics marine mammals monitoring SONOBUOYS ACOUSTIC RECEIVERS SHIPS AMD/AU CEOS AMD OCEAN > SOUTHERN OCEAN CONTINENT > ANTARCTICA GEOGRAPHIC REGION > POLAR Passive acoustic monitoring of Antarctic marine mammals |
topic_facet |
biota oceans EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES > MAMMALS acoustics marine mammals monitoring SONOBUOYS ACOUSTIC RECEIVERS SHIPS AMD/AU CEOS AMD OCEAN > SOUTHERN OCEAN CONTINENT > ANTARCTICA GEOGRAPHIC REGION > POLAR |
description |
Progress Code: completed Statement: The Dates provided in temporal coverage are approximate only, and represent the beginning and end of the 2005 - 2012 Antarctic seasons. The latitudes and longitudes provided in spatial coverage are approximate only. The following information relates specifically to the Tangaroa.Sonobuoy.Log.xls file: National Instruments Card Gain is the amount of gain the sound card added to the signal. 1 gain means the input voltage range is from -5 to +5 volts 5 gain means the input voltage range is from -1 to +1 volts I think we ended up using a gain of 5 in most cases since even loud audio signals were typically between +/-1 V. Basically, these set the bounds/rails on what the sound card can read as part of an acoustic signal. If the signal is particularly intense and produces a higher voltage than +/-1 (in the case of a gain of 5) then the signal peaks or 'hits the rail' and is still recorded as a +/-1V signal (distorting the sound recorded). The voltage range of the audio signal is determined by a chain of things from the hydrophone sensitivity on the sonobuoy and how this is transmitted to the boat's receiver, and ultimately the sensitivity of the VHF receiver in converting the VHF signal back to an audio signal. Check the dataset for calibration files. The manual for the sound card can be found at the following website: http://www.ni.com/pdf/manuals/370503k.pdf 2. Unit for frequency should be Hz (hertz). 3. Depth is Meters 4. Yellow highlighted boxes are from sonobuoys that failed (i.e. they were deployed, but no or minimal useful audio signal was recorded from them) Taken from the 2008-2009 Progress Report: Field work: As described above, recovery attempts were made on 3 acoustic dataloggers that were deployed in 2007/8 along a line of longitude south of Tasmania (142 E) from just SW of Tasmania (44 S), to halfway between Tasmania and the Antarctic (54 S), to just off the Antarctic continental shelf (65 S). These instruments will be recovered during the 08/09 season. Unfortunately, ... |
format |
Dataset |
title |
Passive acoustic monitoring of Antarctic marine mammals |
title_short |
Passive acoustic monitoring of Antarctic marine mammals |
title_full |
Passive acoustic monitoring of Antarctic marine mammals |
title_fullStr |
Passive acoustic monitoring of Antarctic marine mammals |
title_full_unstemmed |
Passive acoustic monitoring of Antarctic marine mammals |
title_sort |
passive acoustic monitoring of antarctic marine mammals |
publisher |
Australian Ocean Data Network |
url |
https://researchdata.edu.au/passive-acoustic-monitoring-marine-mammals/2820591 |
op_coverage |
Spatial: westlimit=60; southlimit=-70.0; eastlimit=160; northlimit=-50.0 Spatial: uplimit=3000; downlimit=2 Temporal: From 2005-10-01 to 2012-03-31 |
geographic |
Antarctic Southern Ocean The Antarctic |
geographic_facet |
Antarctic Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Antarctica Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctica Southern Ocean |
op_source |
AU/AADC > Australian Antarctic Data Centre, Australia |
op_relation |
https://researchdata.edu.au/passive-acoustic-monitoring-marine-mammals/2820591 ASAC_2683 |
_version_ |
1784260602199277568 |