Acoustic surveying of pack-ice seals

• Other Authors: ROGERS, TRACEY (hasPrincipalInvestigator), ROGERS, TRACEY (processor), Australian Antarctic Data Centre (publisher)
• Format: Dataset
• Language: unknown
• Published: Australian Antarctic Data Centre
• Subjects: biota; ANIMALS/VERTEBRATES; EARTH SCIENCE; BIOLOGICAL CLASSIFICATION; MAMMALS; ACOUSTIC ARRAYS; ALGAE; BUOY; CALLS; DETECTION RANGE; FLOE WIDTH; HYDROPHONE; HYDRUGA LEPTONYX; ICE COVER; ICE THICKNESS; LATITUDE; LONGITUDE; MAMMAL SOUNDS; RECORDING; SHIP SPEED; SIGNAL PROPAGATION; SONOBUOYS; TAPE; TEMPERATURE; TIME; WATER DEPTH; WIND DIRECTION; R/V AA > R/V Aurora Australis; OCEAN > SOUTHERN OCEAN; CONTINENT > ANTARCTICA; GEOGRAPHIC REGION > POLAR; Greenwich; Juv; Pancake; Southern Ocean; Weddell; Antarc*; Antarctica; aurora australis; Killer Whale; Leopard Seal; Ross Seal; Weddell Seal; Killer whale
• Online Access: https://researchdata.ands.org.au/acoustic-surveying-pack-ice-seals/699213; https://doi.org/10.4225/15/5a98dd8c1e8b5; https://data.aad.gov.au/metadata/records/Acoustic_seals; http://nla.gov.au/nla.party-617536

Acoustic surveying Data from four acoustic surveys from the Aurora Australis from 1996-10-05 to 1996-10-31; 1997-10-09 to 1997-10-29; 1997-12-08 to 1998-01-06; and 1999-12-04 to 2001-01-16. Sonobouys deployed off the back of the ship, half an hour recording duration samples made concurrently with Colin Southwells visual surveys. Numbers of leopard seal calls audible from recordings measured by acoustic analysis. The fields in this dataset are: Tape # = the tape number and date Recording # = Recording number Buoy # = Sonobuoy number Buoy Freq = Sonobuoy frequency Longitude S = Longitude Decimal Longitude S = Decimal Longitude Latitude E = Latitude Decimal Latitude E = Decimal Latitude GMT = Greenwich Mean Time Local time = Local Time Serial Time = dd:mm:yy hh:mm Ship Speed Kts ICE Cover (/10) = Ice Cover in tenths Ice % cover = Percentage of Ice Cover Thick Ice: Ice Thickness 0 = 0; 1less than 2 cm; 2 = 2cm to 0.25m; 3= 0.25m to 0.5m; 4 = 0.5m - 1m; 5 greater than 1.0 m Ice Type: 1 = no information; 2 = grease or pancake; 3 = brash; 4 = floes first year; 5 = multiyear floes; 6 = first year rafted floes; 7 = multiyear rafted floes; 8 = mixed brash and 1st year floes; 9 = mixed brash and multiyear floes; 10 = icebergs; 11 = icebergs and brash; 12 = icebergs and 1st year floes; 13 = icebergs and multiyear floes; 14 = compacted pack ice; 15 = iceshelf; 16 = other; 17 = fast ice. Floe Width: 1 = less than 3 m; 2 = 3 - 10 m; 3 = 10 - 50m; 4 = 50 -100 m; 5 greater than 100 m. Weather: 1 = blue sky (0-20% cloud); 2 = partly cloudy (21-80%); 3 = cloudy (81-99%); 4 = overcast (100%); 5 = rain; 6 = mist; 7 = fog; 8 = fog patches; 9 = drizzle; 10 =snow; 11 = snow fog; 12 = rain fog. Algae: 1 = clear; 2 = slight colour; 3 = medium colour; 4 = dark brown patches; 5 = all dark brown Water Depth m Wind Speed Kts Wind Direction Air temp degrees C Rec Time = Duration of the recording made Gain = Recording gain on the amplifier Mammal Sounds? = Other mammal sounds. CS = unknown origin chain-saw like sound; P5/P6 = unknown origin pulsed sounds; NSL = unknown origin appears to be a new leopard seal sound; Wd = Weddell; LS = Leopard; KW = Killer Whale; RS = Ross LS Calls Total = Total number of leopard seal calls D = Total Low Descending trills H = Total High Double trills L = Total Low Double trills M = Total Medium Single trills O = Total Hoots with Single trills Juv LS = Total Juvenile Leopard seal calls NLS = Total New Leopard Seal Calls CS = Total Chain Saw Calls RS = Total Ross Seal Calls Wd = Total Weddell seal Calls P2-P5 = Total Pulsed calls