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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
Custodian
  British Antarctic Survey
High Cross, Madingley Road , Cambridge , CB3 0ET , UK
+44 (0)1223 221400
Originator
  NERC EDS UK Polar Data Centre - Lowe, M., & Jordan, T.
High Cross, Madingley , Cambridge , CB3 0ET , UK
+44 (0)1223 221400
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
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Begin date
2024-02-09
End date
2024-03-03
Reference system identifier
OGP / urn:ogc:def:crs:EPSG::4326
Distribution format
Distributor
  Polar Data Centre - British Antarctic Survey
+44 (0)1223 221400
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
Point of contact
  British Antarctic Survey
+44 (0)1223 221400
Dataset URI
http://www.antarctica.ac.uk/dms/metadata.php?id=GB/NERC/BAS/PDC/01943
 
 

Overviews

Spatial extent

N
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W
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Keywords


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