Data

Airborne-deployed ocean sensors in the Southern Ocean, 2016-2018, Level 0 data

Australian Antarctic Data Centre
GREENBAUM, JAMIN S. ; YOUNG, DUNCAN ; GALTON-FENZI, BEN K ; BLANKENSHIP, DONALD D ; ROBERTS, JASON LEIGH ; NG, GREGORY ; JONG, LENNEKE M. ; MCCORMACK, FELICITY S. ; GREENE, CHAD A. ; WEI, WEI
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ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=info:doi10.26179/5e6b0d6ff3ec4&rft.title=Airborne-deployed ocean sensors in the Southern Ocean, 2016-2018, Level 0 data&rft.identifier=10.26179/5e6b0d6ff3ec4&rft.publisher=Australian Antarctic Data Centre&rft.description=Extracted Level 0 data are provided as audio files recorded in flight with a Sony PX470 voice recorder. These files were processed to generate the associated Level 2 products. Project 4346 demonstrated the use of Airborne eXpendable Bathy-Thermograph (AXBT) and Airborne eXpendable Conductivity, Temperature, Depth (AXCTD) sensors from a BT-67 Basler aircraft in East Antarctica. The primary objective was to use AXBT and AXCTD sensors to infer seafloor depth where no previous measurements had been made by ship, often by deploying sensors into narrow gaps in sea ice. Inferring a snapshot of the ocean state by detecting major thermoclines was a secondary objective. Although several sensors were purchased with external funds, the efforts to develop operational and subsequent data analysis approaches were unfunded as this was an add-on, target of opportunity. The effort is best described as a prototype demonstration project to test whether the seafloor depth could be inferred beneath narrow sea ice leads from a rapidly flying aircraft. All but eight AXBT sensors were donated to the University of Texas Institute for Geophysics (UTIG); AXCTDs were purchased by the Antarctic Gateway Partnership. Receiver and data processing equipment were loaned to UTIG.&rft.creator=GREENBAUM, JAMIN S. &rft.creator=YOUNG, DUNCAN &rft.creator=GALTON-FENZI, BEN K &rft.creator=BLANKENSHIP, DONALD D &rft.creator=ROBERTS, JASON LEIGH &rft.creator=NG, GREGORY &rft.creator=JONG, LENNEKE M. &rft.creator=MCCORMACK, FELICITY S. &rft.creator=GREENE, CHAD A. &rft.creator=WEI, WEI &rft.date=2020&rft.coverage=northlimit=-65.5; southlimit=-66.8; westlimit=108; eastLimit=121; projection=WGS84&rft.coverage=northlimit=-65.5; southlimit=-66.8; westlimit=108; eastLimit=121; projection=WGS84&rft.coverage=northlimit=-65; southlimit=-65.8; westlimit=99; eastLimit=103.5; projection=WGS84&rft.coverage=northlimit=-65; southlimit=-65.8; westlimit=99; eastLimit=103.5; projection=WGS84&rft_rights=This data set conforms to the CCBY Attribution License (http://creativecommons.org/licenses/by/4.0/). Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=AAS_4346_Airborne_Ocean_Sensors when using these data.&rft_subject=oceans&rft_subject=CONDUCTIVITY&rft_subject=EARTH SCIENCE&rft_subject=OCEANS&rft_subject=SALINITY/DENSITY&rft_subject=THERMOCLINE&rft_subject=OCEAN TEMPERATURE&rft_subject=WATER TEMPERATURE&rft_subject=WATER PRESSURE&rft_subject=OCEAN PRESSURE&rft_subject=SEA ICE&rft_subject=WATER DEPTH&rft_subject=BATHYMETRY/SEAFLOOR TOPOGRAPHY&rft_subject=AIRBORNE EXPENDABLE BATHY-THERMOGRAPH&rft_subject=AXCTD&rft_subject=AXBT&rft_subject=AIRBORNE EXPENDABLE CONDUCTIVITY, TEMPERATURE, DEPTH&rft_subject=XBT > Expendable Bathythermographs&rft_subject=CTD > Conductivity Temperature Depth&rft_subject=AIRCRAFT&rft_subject=BT-67 > Basler BT-67&rft_subject=CONTINENT > ANTARCTICA > BUD AND SABRINA COAST&rft_subject=CONTINENT > ANTARCTICA > KNOX COAST&rft_subject=OCEAN > SOUTHERN OCEAN&rft_subject=GEOGRAPHIC REGION > POLAR&rft_place=Hobart&rft.type=dataset&rft.language=English Access the data
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This data set conforms to the CCBY Attribution License (http://creativecommons.org/licenses/by/4.0/). Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=AAS_4346_Airborne_Ocean_Sensors when using these data.

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Brief description

Extracted Level 0 data are provided as audio files recorded in flight with a Sony PX470 voice recorder. These files were processed to generate the associated Level 2 products.

Project 4346 demonstrated the use of Airborne eXpendable Bathy-Thermograph (AXBT) and Airborne eXpendable Conductivity, Temperature, Depth (AXCTD) sensors from a BT-67 Basler aircraft in East Antarctica. The primary objective was to use AXBT and AXCTD sensors to infer seafloor depth where no previous measurements had been made by ship, often by deploying sensors into narrow gaps in sea ice. Inferring a snapshot of the ocean state by detecting major thermoclines was a secondary objective.

Although several sensors were purchased with external funds, the efforts to develop operational and subsequent data analysis approaches were unfunded as this was an add-on, target of opportunity. The effort is best described as a prototype demonstration project to test whether the seafloor depth could be inferred beneath narrow sea ice leads from a rapidly flying aircraft. All but eight AXBT sensors were donated to the University of Texas Institute for Geophysics (UTIG); AXCTDs were purchased by the Antarctic Gateway Partnership. Receiver and data processing equipment were loaned to UTIG.

Issued: 2020-03-13

Data time period: 2016-11-01 to 2020-01-31

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121,-65.5 121,-66.8 108,-66.8 108,-65.5 121,-65.5

114.5,-66.15

103.5,-65 103.5,-65.8 99,-65.8 99,-65 103.5,-65

101.25,-65.4

text: northlimit=-65.5; southlimit=-66.8; westlimit=108; eastLimit=121; projection=WGS84

text: northlimit=-65; southlimit=-65.8; westlimit=99; eastLimit=103.5; projection=WGS84

Subjects
AIRBORNE EXPENDABLE BATHY-THERMOGRAPH | AIRBORNE EXPENDABLE CONDUCTIVITY, TEMPERATURE, DEPTH | AIRCRAFT | AXBT | AXCTD | BATHYMETRY/SEAFLOOR TOPOGRAPHY | BT-67 > Basler BT-67 | CONDUCTIVITY | CONTINENT > ANTARCTICA > BUD AND SABRINA COAST | CONTINENT > ANTARCTICA > KNOX COAST | CTD > Conductivity Temperature Depth | EARTH SCIENCE | GEOGRAPHIC REGION > POLAR | OCEAN > SOUTHERN OCEAN | OCEAN PRESSURE | OCEAN TEMPERATURE | OCEANS | SALINITY/DENSITY | SEA ICE | THERMOCLINE | WATER DEPTH | WATER PRESSURE | WATER TEMPERATURE | XBT > Expendable Bathythermographs | oceans |

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AU-ANL:PEAU : http://nla.gov.au/nla.party-617536

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