Airborne-deployed ocean sensors in the Southern Ocean, 2016-2018, Level 0 data
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.
Simple
Identification info
- Alternate title
- Airborne-deployed ocean sensors in the Southern Ocean, 2016-2018, Level 0 data
- Date (Publication)
- 2020-12-08
- Edition
- 2
- Citation identifier
-
Dataset DOI
- Title
- Information and documentation - Digital object identifier system
- Date (Publication)
- 2012-04-23
- Citation identifier
- ISO 26324:2012
- Citation identifier
- doi:10.26179/5e6b0d6ff3ec4
Originator
Publisher
Principal investigator
Principal investigator
Principal investigator
Principal investigator
Principal investigator
Collaborator
Collaborator
Collaborator
Collaborator
Collaborator
Collaborator
Collaborator
- Name
- CAASM Metadata
- Status
- Completed
Custodian
- Topic category
-
- Oceans
Extent
Extent
- Description
- Temporal Coverage
Temporal extent
- TimePeriod
- 2016-11-01 2020-01-31
- NASA/GCMD Earth Science Keywords
-
- EARTH SCIENCE > OCEANS > SALINITY/DENSITY > CONDUCTIVITY
- EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > THERMOCLINE
- EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE
- EARTH SCIENCE > OCEANS > OCEAN PRESSURE > WATER PRESSURE
- EARTH SCIENCE > OCEANS > SEA ICE
- EARTH SCIENCE > OCEANS > BATHYMETRY/SEAFLOOR TOPOGRAPHY > WATER DEPTH
- Keywords
-
- AIRBORNE EXPENDABLE BATHY-THERMOGRAPH
- AXCTD
- AXBT
- AIRBORNE EXPENDABLE CONDUCTIVITY, TEMPERATURE, DEPTH
- NASA/GCMD Earth Science Keywords
-
- XBT > Expendable Bathythermographs
- CTD > Conductivity Temperature Depth
- NASA/GCMD Earth Science Keywords
-
- AIRCRAFT
- BT-67 > Basler BT-67
- NASA/GCMD Earth Science Keywords
-
- AMD/AU
- AMD
- CEOS
- NASA/GCMD Earth Science Keywords
-
- CONTINENT > ANTARCTICA > BUD AND SABRINA COAST
- CONTINENT > ANTARCTICA > KNOX COAST
- OCEAN > SOUTHERN OCEAN
- GEOGRAPHIC REGION > POLAR
Resource constraints
- Use limitation
- This metadata record is publicly available.
Resource constraints
- Access constraints
- licence
- Other constraints
- These data are publicly available for download from the provided URL.
Resource constraints
- File type
- Portable Network Graphic
- Title
- Attribution 4.0 International (CC BY 4.0)
- Website
-
https://creativecommons.org/licenses/by/4.0/legalcode
Legal code for Creative Commons by Attribution 4.0 International license
- Use constraints
- licence
- Other constraints
- 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.
- Language
- English
- Character encoding
- UTF8
Distribution Information
Distributor
Distributor
Distributor
- Fees
- Free
- Planned available datetime
- 2020-12-08T00:00:00
- Units of distribution
- GB
- Transfer size
- 4
- Distribution format
-
- csv, pdf, images
- OnLine resource
-
GET DATA > DIRECT DOWNLOAD
Download the dataset.
- OnLine resource
-
PROJECT HOME PAGE
Public information for AAS project AAS_4346
- OnLine resource
-
VIEW RELATED INFORMATION
Citation reference for this metadata record and dataset.
Resource lineage
- Statement
- 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. An update to this metadata record will be submitted when this analysis is completed.
- Hierarchy level
- Dataset
- Maintenance and update frequency
- As needed
- Maintenance note
- 2020-03-13 - record created by Dave Connell from a template completed by Jamin Greenbaum. 2020-08-12 - record updated by Dave Connell to alter the title after an accompanying metadata record was provided by Jamin Greenbaum. 2020-08-18 - record updated by Jamin Greenbaum after an updated dataset was provided. 2020-12-08 - record updated by Dave Connell to publicly release the data.
Metadata
- Metadata identifier
- string/AAS_4346_Airborne_Ocean_Sensors
- Language
- English
- Character encoding
- UTF8
Author
Sponsor
Owner
Type of resource
- Resource scope
- Dataset
Alternative metadata reference
- Title
- gov.nasa.gsfc.gcmd
- Citation identifier
- 4b9b1e0d-8069-45ed-9c64-837f2a87c536
Alternative metadata reference
- Title
- gov.nasa.gsfc.gcmd
- Date (Last Revision)
- 2020-12-08T15:52:34
Identifier
- Description
- metadata.extraction_date
Alternative metadata reference
- Title
- gov.nasa.gsfc.gcmd
- Citation identifier
- 8.6
- Metadata linkage
-
http://data.aad.gov.au/metadata/records/AAS_4346_Airborne_Ocean_Sensors
Point of truth for the metadata record
- Date info (Creation)
- 2020-03-13T00:00:00
- Date info (Last Update)
- 2020-12-08
Metadata standard
- Title
- ISO 19115-3
- Edition
- 2014
- Other citation details
- Version 1
- Title
- DIF to ISO 19115-1 Profile