IMAS Metadata Catalogue
Denman Terrestrial Campaign - Ground-based gravity transect
New ground-based gravity and GNSS data set collected at nine sites along a ~14 km transect across the Denman Glacier system during the Denman Terrestrial Campaign 2023/24. The survey was conducted along the existing ICECAP airborne geophysical flight line ASB/JKB2c/Y11b, enabling direct comparison between ground-based and airborne observations. Coincident GNSS observations are provided for precise station positions and ellipsoidal heights.
Simple
Identification info
- Date (Publication)
- 2026-02-04T00:00:00
Identifier
Resource provider
Author
Collaborator
- Credit
- This research was supported by the Australian Research Council Special Research Initiative, Australian Centre for Excellence in Antarctic Science (Project Number SR200100008).
- Credit
- This research was supported by the Australian Research Council Special Research Initiative, Australian Centre for Excellence in Antarctic Science (Project Number SR200100008). This work was supported by fieldwork that occurred under AAS4630.
- Status
- Completed
Point of contact
- Topic category
-
- Geoscientific information
Extent
))
Temporal extent
- Time period
- 2023-12-08 2024-02-08
- Maintenance and update frequency
- Not planned
- Keywords (Theme)
-
- Denman Glacier
- Denman Terrestrial Campaign
- ACEAS
- GNSS
- Transect
- Global Change Master Directory Earth Science Keywords, Version 8.5
Resource constraints
- Linkage
-
https://licensebuttons.net/l/by/4.0/88x31.png
License Graphic
- Title
- Creative Commons Attribution 4.0 International License
- Alternate title
- CC-BY
- Edition
- 4.0
- Website
-
https://creativecommons.org/licenses/by/4.0/
License Text
- Other constraints
- Lösing, M., & Aitken, A. (2026). Denman Terrestrial Campaign - Ground-based gravity transect [Data set]. Institute for Marine and Antarctic Studies. https://doi.org/10.25959/RM9S-KT42
- Language
- English
- Character encoding
- UTF8
- Supplemental Information
- Gravity Topography Modeling of the Denman Glacier Region Using a Geostatistical Approach
Content Information
- Content type
- Physical measurement
Distribution Information
- Distribution format
-
- xlsx, txt, smp, trimble files
- OnLine resource
-
Casey_Base_Station_0cuVOWU.zip
DATA DOWNLOAD - All measurements at the Casey station as summary in the Casey_Station.xlsx sheet, raw data in the .TXT files, and 6Hz data in the .SMP files (4.2MB, ZIP)
- OnLine resource
-
Bunger_Hills_Control_Xp4j0nR.zip
DATA DOWNLOAD - All measurements at the Bunger Hills camp as summary in the Bunger_control.xlsx sheet. Several folders with dates contain backups of raw data in the .TXT files, 6Hz data in the .SMP files, and GNSS files (only on two days) with coordinates of the three different control points in the Bunger Hills camp. (45MB, ZIP)
- OnLine resource
-
Casey_Base_Station_0cuVOWU.zip
DATA DOWNLOAD - All measurements at the transect (on January 3rd only at 3 of 9 sites, on January 7th at all 9 sites). Summary of gravity in Transect.xlsx, summary of coordinates in Coordinates_Height_Site.xlsx, Trimble data in 'GNSS' folder, gravimeter outputs in 'raw gravimeter files' folder.
Resource lineage
- Statement
- In January 2024, we collected nine ground-based gravity measurements along a ~14 km transect across the Denman Glacier (spacing ~ 1.7 km). We used a Scintrex CG-5 Autograv (resolution 0.001 mGal; typical station repeatability of 5 μGal under stable conditions; long-term drift below 0.02 mGal/day (See Scintrex CG5 Manual, 2017)), with daily base ties at Bunger Hills and loop closures including the Casey Station absolute site to control drift. Field readings from the CG-5 were tied to an absolute reference by calibrating against the Casey Station fundamental value of 982380.48867 mGal (Lon: 110.5226, Lat: -66.2820, height: 19 m, positional error: 3 m, gravity error: 30 μGal). Coordinates were determined from dual-frequency Trimble GNSS. Rover trajectories were post-processed kinematically (PPK) in Emlid Studio v1.5; the local PPK network was tied to an AUSPOS (ITRF2014) solution. On the Glacier, we positioned one GNSS Antenna at a mid-line base (Lon: 99.4622, Lat: -67.1976, height = 804.817 m ellipsoidal) for ~7 hours. 'Casey Base Station': All measurements at the Casey station as summary in the Casey_Station.xlsx sheet, raw data in the .TXT files, and 6Hz data in the .SMP files. 'Bunger Hills Control': All measurements at the Bunger Hills camp as summary in the Bunger_control.xlsx sheet. Several folders with dates contain backups of raw data in the .TXT files, 6Hz data in the .SMP files, and GNSS files (only on two days) with coordinates of the three drifferent control points in the Bunger Hills camp. 'Transect': All measurements at the transect (on January 3rd only at 3 of 9 sites, on January 7th at all 9 sites). Summary of gravity in Transect.xlsx, summary of coordinates in Coordinates_Height_Site.xlsx, Trimble data in 'GNSS' folder, gravimeter outputs in 'raw gravimeter files' folder. Summary gravity files contain Station Number (Station no), Location (Site/name of location), gravimeter tide correction (TC), standard deviation (SD), horizontal tilts (TiltX, TiltY), height given by gravimeter (usually not correct), Comments, and Date.
- Hierarchy level
- Dataset
- Hierarchy level
- Dataset
Metadata
- Metadata identifier
- urn:uuid/5ba37235-2e9c-4850-91d8-1837b2d95778
- Language
- English
- Character encoding
- UTF8
Type of resource
- Resource scope
- Dataset
- Name
- IMAS Dataset level record
- Metadata linkage
-
https://metadata.imas.utas.edu.au/geonetwork/srv/eng/catalog.search#/metadata/5ba37235-2e9c-4850-91d8-1837b2d95778
Point of truth URL of this metadata record
- Date info (Creation)
- 2024-01-07T00:00:00
- Date info (Revision)
- 2026-02-04T00:00:00
Metadata standard
- Title
- ISO 19115-3:2018
Overviews
Spatial extent
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