Airborne-deployed ocean sensors in the Southern Ocean, 2016-2018, Level 2 data
The vast majority of AXBT and AXCTD sensors successfully transmitted signals to the aircraft; however, a handful of sensors either did not transmit or transmitted noisy and likely uninterpretable data. An ongoing analysis effort attempts to increase confidence in the seafloor impact signal and the p...
Other Authors: | , |
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Format: | Dataset |
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Australian Ocean Data Network
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Online Access: | https://researchdata.edu.au/airborne-deployed-ocean-level-2/1466830 https://data.aad.gov.au/metadata/records/AAS_4346_Airborne_Ocean_Sensors_Level_2 https://data.aad.gov.au/eds/5151/download https://secure3.aad.gov.au/proms/public/projects/report_project_public.cfm?project_no=AAS_4346 https://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=AAS_4346_Airborne_Ocean_Sensors_Level_2 |
id |
ftands:oai:ands.org.au::1466830 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
Research Data Australia (Australian National Data Service - ANDS) |
op_collection_id |
ftands |
language |
unknown |
topic |
oceans CONDUCTIVITY EARTH SCIENCE SALINITY/DENSITY WATER TEMPERATURE OCEAN TEMPERATURE WATER PRESSURE OCEAN PRESSURE THERMOCLINE WATER DEPTH BATHYMETRY/SEAFLOOR TOPOGRAPHY SEA ICE AXCTD AIRBORNE EXPENDABLE BATHY-THERMOGRAPH AXBT AIRBORNE EXPENDABLE CONDUCTIVITY TEMPERATURE DEPTH XBT > Expendable Bathythermographs CTD > Conductivity Temperature Depth SONOBUOYS AIRCRAFT BT-67 > Basler BT-67 AMD/AU AMD CEOS OCEAN > SOUTHERN OCEAN CONTINENT > ANTARCTICA GEOGRAPHIC REGION > POLAR |
spellingShingle |
oceans CONDUCTIVITY EARTH SCIENCE SALINITY/DENSITY WATER TEMPERATURE OCEAN TEMPERATURE WATER PRESSURE OCEAN PRESSURE THERMOCLINE WATER DEPTH BATHYMETRY/SEAFLOOR TOPOGRAPHY SEA ICE AXCTD AIRBORNE EXPENDABLE BATHY-THERMOGRAPH AXBT AIRBORNE EXPENDABLE CONDUCTIVITY TEMPERATURE DEPTH XBT > Expendable Bathythermographs CTD > Conductivity Temperature Depth SONOBUOYS AIRCRAFT BT-67 > Basler BT-67 AMD/AU AMD CEOS OCEAN > SOUTHERN OCEAN CONTINENT > ANTARCTICA GEOGRAPHIC REGION > POLAR Airborne-deployed ocean sensors in the Southern Ocean, 2016-2018, Level 2 data |
topic_facet |
oceans CONDUCTIVITY EARTH SCIENCE SALINITY/DENSITY WATER TEMPERATURE OCEAN TEMPERATURE WATER PRESSURE OCEAN PRESSURE THERMOCLINE WATER DEPTH BATHYMETRY/SEAFLOOR TOPOGRAPHY SEA ICE AXCTD AIRBORNE EXPENDABLE BATHY-THERMOGRAPH AXBT AIRBORNE EXPENDABLE CONDUCTIVITY TEMPERATURE DEPTH XBT > Expendable Bathythermographs CTD > Conductivity Temperature Depth SONOBUOYS AIRCRAFT BT-67 > Basler BT-67 AMD/AU AMD CEOS OCEAN > SOUTHERN OCEAN CONTINENT > ANTARCTICA GEOGRAPHIC REGION > POLAR |
description |
The vast majority of AXBT and AXCTD sensors successfully transmitted signals to the aircraft; however, a handful of sensors either did not transmit or transmitted noisy and likely uninterpretable data. An ongoing analysis effort attempts to increase confidence in the seafloor impact signal and the proper equations to use for depth, temperature, and salinity calculations. Updates to this metadata record will be submitted when improvements in data quality are achieved. Dates provided in temporal coverage are approximate only. Extracted Level 2 data include three data types: 1) Position data are included in .GPX files organized by campaign where “ICP8” refers to the 2016-2017 ICECAP2 field season and “ICP9” refers to the 2017-2018 field season. We recommend opening these files in QGIS or on similar platform. Metadata for each sonobuoy deployment include the unique identifier for each profile as well as the date, time, and aircraft longitude, latitude, elevation, and speed (in East, North, Up coordinates) at the time of deployment. Season identifier, flight number, and unique profile identifier are also displayed. In QGIS, for example, clicking on the drop locations using the “Identify Features” tool is a convenient way of investigating the metadata. 2) Profile data are released as Exportable Data Files (EDF), an ASCII format with a metadata header followed by the profile data. 3) Profile data are also released as Hierarchical Data Format (HDF) files using a .h5 extension. This format is provided so users can take advantage of numerous and freely available Python and MATLAB resources simplifying importing and investigating the profiles. 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. |
author2 |
AADC (originator) AU/AADC > Australian Antarctic Data Centre, Australia (resourceProvider) |
format |
Dataset |
title |
Airborne-deployed ocean sensors in the Southern Ocean, 2016-2018, Level 2 data |
title_short |
Airborne-deployed ocean sensors in the Southern Ocean, 2016-2018, Level 2 data |
title_full |
Airborne-deployed ocean sensors in the Southern Ocean, 2016-2018, Level 2 data |
title_fullStr |
Airborne-deployed ocean sensors in the Southern Ocean, 2016-2018, Level 2 data |
title_full_unstemmed |
Airborne-deployed ocean sensors in the Southern Ocean, 2016-2018, Level 2 data |
title_sort |
airborne-deployed ocean sensors in the southern ocean, 2016-2018, level 2 data |
publisher |
Australian Ocean Data Network |
url |
https://researchdata.edu.au/airborne-deployed-ocean-level-2/1466830 https://data.aad.gov.au/metadata/records/AAS_4346_Airborne_Ocean_Sensors_Level_2 https://data.aad.gov.au/eds/5151/download https://secure3.aad.gov.au/proms/public/projects/report_project_public.cfm?project_no=AAS_4346 https://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=AAS_4346_Airborne_Ocean_Sensors_Level_2 |
op_coverage |
Spatial: northlimit=-65.5; southlimit=-66.8; westlimit=108; eastLimit=121 Spatial: northlimit=-65; southlimit=-65.8; westlimit=99; eastLimit=103.5 Temporal: From 2016-10-01 to 2018-03-31 |
long_lat |
ENVELOPE(108,121,-65.5,-66.8) ENVELOPE(99,103.5,-65,-65.8) |
geographic |
Antarctic Southern Ocean The Antarctic East Antarctica |
geographic_facet |
Antarctic Southern Ocean The Antarctic East Antarctica |
genre |
Antarc* Antarctic Antarctica East Antarctica Sea ice Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica Sea ice Southern Ocean |
op_source |
https://data.aad.gov.au |
op_relation |
https://researchdata.edu.au/airborne-deployed-ocean-level-2/1466830 0ae923bd-a0e8-4c14-84c8-779f4b332740 https://data.aad.gov.au/metadata/records/AAS_4346_Airborne_Ocean_Sensors_Level_2 https://data.aad.gov.au/eds/5151/download https://secure3.aad.gov.au/proms/public/projects/report_project_public.cfm?project_no=AAS_4346 https://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=AAS_4346_Airborne_Ocean_Sensors_Level_2 |
_version_ |
1766272964178739200 |
spelling |
ftands:oai:ands.org.au::1466830 2023-05-15T14:02:38+02:00 Airborne-deployed ocean sensors in the Southern Ocean, 2016-2018, Level 2 data AADC (originator) AU/AADC > Australian Antarctic Data Centre, Australia (resourceProvider) Spatial: northlimit=-65.5; southlimit=-66.8; westlimit=108; eastLimit=121 Spatial: northlimit=-65; southlimit=-65.8; westlimit=99; eastLimit=103.5 Temporal: From 2016-10-01 to 2018-03-31 https://researchdata.edu.au/airborne-deployed-ocean-level-2/1466830 https://data.aad.gov.au/metadata/records/AAS_4346_Airborne_Ocean_Sensors_Level_2 https://data.aad.gov.au/eds/5151/download https://secure3.aad.gov.au/proms/public/projects/report_project_public.cfm?project_no=AAS_4346 https://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=AAS_4346_Airborne_Ocean_Sensors_Level_2 unknown Australian Ocean Data Network https://researchdata.edu.au/airborne-deployed-ocean-level-2/1466830 0ae923bd-a0e8-4c14-84c8-779f4b332740 https://data.aad.gov.au/metadata/records/AAS_4346_Airborne_Ocean_Sensors_Level_2 https://data.aad.gov.au/eds/5151/download https://secure3.aad.gov.au/proms/public/projects/report_project_public.cfm?project_no=AAS_4346 https://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=AAS_4346_Airborne_Ocean_Sensors_Level_2 https://data.aad.gov.au oceans CONDUCTIVITY EARTH SCIENCE SALINITY/DENSITY WATER TEMPERATURE OCEAN TEMPERATURE WATER PRESSURE OCEAN PRESSURE THERMOCLINE WATER DEPTH BATHYMETRY/SEAFLOOR TOPOGRAPHY SEA ICE AXCTD AIRBORNE EXPENDABLE BATHY-THERMOGRAPH AXBT AIRBORNE EXPENDABLE CONDUCTIVITY TEMPERATURE DEPTH XBT > Expendable Bathythermographs CTD > Conductivity Temperature Depth SONOBUOYS AIRCRAFT BT-67 > Basler BT-67 AMD/AU AMD CEOS OCEAN > SOUTHERN OCEAN CONTINENT > ANTARCTICA GEOGRAPHIC REGION > POLAR dataset ftands 2020-09-14T22:23:36Z The vast majority of AXBT and AXCTD sensors successfully transmitted signals to the aircraft; however, a handful of sensors either did not transmit or transmitted noisy and likely uninterpretable data. An ongoing analysis effort attempts to increase confidence in the seafloor impact signal and the proper equations to use for depth, temperature, and salinity calculations. Updates to this metadata record will be submitted when improvements in data quality are achieved. Dates provided in temporal coverage are approximate only. Extracted Level 2 data include three data types: 1) Position data are included in .GPX files organized by campaign where “ICP8” refers to the 2016-2017 ICECAP2 field season and “ICP9” refers to the 2017-2018 field season. We recommend opening these files in QGIS or on similar platform. Metadata for each sonobuoy deployment include the unique identifier for each profile as well as the date, time, and aircraft longitude, latitude, elevation, and speed (in East, North, Up coordinates) at the time of deployment. Season identifier, flight number, and unique profile identifier are also displayed. In QGIS, for example, clicking on the drop locations using the “Identify Features” tool is a convenient way of investigating the metadata. 2) Profile data are released as Exportable Data Files (EDF), an ASCII format with a metadata header followed by the profile data. 3) Profile data are also released as Hierarchical Data Format (HDF) files using a .h5 extension. This format is provided so users can take advantage of numerous and freely available Python and MATLAB resources simplifying importing and investigating the profiles. 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. Dataset Antarc* Antarctic Antarctica East Antarctica Sea ice Southern Ocean Research Data Australia (Australian National Data Service - ANDS) Antarctic Southern Ocean The Antarctic East Antarctica ENVELOPE(108,121,-65.5,-66.8) ENVELOPE(99,103.5,-65,-65.8) |