NERC Data Catalogue Service
3D density and susceptibility distribution model derived from 2024 gravity and magnetic surveys of Marguerite Bay, West Antarctica
We present a 3D crustal model of density and susceptibility distribution in Marguerite Bay, west Antarctica. The inversion is based on airborne gravity and magnetic data collected with a Windracers Ultra UAV (2023/2024 Antarctic season) with a line spacing of 2 km and a ground clearness of 500m.
The inverted densities and susceptibilities allow us to contain and identify large scale 3D intrusion in Marguerite Bay.
We provide a CSV file, which contains the coordinates, the depth and the inverted density and susceptibility distribution.
This work was funded through "Protecting environments with unmanned aerial vehicle swarms" project number 10023377 as part of "Innovate UK Future flight challenge phase 3"
Simple
- Alternate title
- Polar Data Centre (PDC) record GB/NERC/BAS/PDC/01943
- Date (Publication)
- 2024-11-11
- Identifier
- http://www.antarctica.ac.uk/dms/metadata.php?id= / GB/NERC/BAS/PDC/01943
- Maintenance and update frequency
- unknown Unknown
- Keywords
-
- NDGO0001
- NERC OAI Harvesting
-
- NERC_DDC
- GCMD Parameter Valids
-
- EARTH SCIENCE > Solid Earth > Geodetics/Gravity
- EARTH SCIENCE > Solid Earth > Geomagnetism
- EARTH SCIENCE > Solid Earth > Rocks/Minerals
- BAS Free-text keywords
-
- gravity
- joint inversion
- magnetics
- rock density
- susceptibility distribution
- Use limitation
- This data is covered by a UK Open Government Licence (http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/)
- Access constraints
- otherRestrictions Other restrictions
- Other constraints
- This data is covered by a UK Open Government Licence (http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/)
- Distance
- 250 m
- Metadata language
- EnglishEnglish
- Topic category
-
- Geoscientific information
))
- Begin date
- 2024-02-09
- End date
- 2024-03-03
- Reference system identifier
- OGP / urn:ogc:def:crs:EPSG::4326
- Distribution format
-
- Protocol
- http
- Name
- GET DATA
- Function
- download Download
- Hierarchy level
- dataset Dataset
Domain consistency
- Measure identification
- INSPIRE / Conformity_001
Conformance result
- Date
- Explanation
- See the referenced specification
- Pass
- No
- Statement
-
The mean residual between observed and inverted gravity and magnetic field is 0.1 mGal and -0.2 nT, with a standard deviation of 2.5 mGal and 3.5 nT.
The data have a horizontal resolution of 250 m and a vertical resolution of 100 m, which increases with a factor of 1.1 with depth.
- File identifier
- GB_NERC_BAS_PDC_01943 XML
- Metadata language
- EnglishEnglish
- Hierarchy level
- dataset Dataset
- Date stamp
- 2024-11-11
- Metadata standard name
- NERC profile of ISO19115:2003
- Metadata standard version
- 1.0
Overviews
Spatial extent
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