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Processed line aeromagnetic data over the Black Coast (1996/97 season)

Using the British Antarctic Survey''s DeHavilland Dash-7, approximately 10,000 line-km of data were collected from the Black Coast and adjacent Weddell Sea embayment, which is situated ca. 600 km southeast of the airfield at Rothera Station . Flight lines were spaced at 10-km intervals with perpendicular tie lines spaced at 40 km. Where time and fuel allowed, selected areas were infilled at a 5-km line spacing. The marine part of the survey was flown at around less than 1000 m above sea level.We present here the processed line aeromagnetic data acquired using scintrex cesium magnetometers mounted on the BAS aerogeophysical equiped Dash-7.

Data are provided as XYZ ASCII line data.

Simple

Alternate title
Polar Data Centre (PDC) record GB/NERC/BAS/PDC/01342
Date (Publication)
2020-08-07
Identifier
http://www.antarctica.ac.uk/dms/metadata.php?id= / GB/NERC/BAS/PDC/01342
Custodian
  British Antarctic Survey
High Cross, Madingley Road , Cambridge , CB3 0ET , UK
+44 (0)1223 221400
Originator
  UK Polar Data Centre, Natural Environment Research Council, UK Research & Innovation - Ferris, J.
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 > Cryosphere > Glaciers/Ice Sheets
  • EARTH SCIENCE > Solid Earth > Geomagnetism > Magnetic Anomalies
BAS Free-text keywords
  • Aerogeophysics
  • Aeromagnetics
  • Antarctica
Use limitation

This data is covered by a UK Open Government Licence (http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/) Further by downloading this data the user acknowledges that they agree with the NERC data policy (http://www.nerc.ac.uk/research/sites/data/policy.asp), and the following conditions:

1. To cite the data in any publication as follows:

Ferris, J. (2020). Processed line aeromagnetic data over the Black Coast (1996/97 season) (Version 1.0) [Data set]. UK Polar Data Centre, Natural Environment Research Council, UK Research & Innovation. https://doi.org/10.5285/4FD848A4-5C86-4324-8574-1A33CACBA10B

2. The user recognizes the limitations of data. Use of the data is at the users'' own risk, and there is no warranty as to the quality or accuracy of any data, or the fitness of the data for your intended use. The data are not necessarily fully quality assured and cannot be expected to be free from measurement uncertainty, systematic biases, or errors of interpretation or analysis, and may include inaccuracies in error margins quoted with the data.

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/) Further by downloading this data the user acknowledges that they agree with the NERC data policy (http://www.nerc.ac.uk/research/sites/data/policy.asp), and the following conditions:

1. To cite the data in any publication as follows:

Ferris, J. (2020). Processed line aeromagnetic data over the Black Coast (1996/97 season) (Version 1.0) [Data set]. UK Polar Data Centre, Natural Environment Research Council, UK Research & Innovation. https://doi.org/10.5285/4FD848A4-5C86-4324-8574-1A33CACBA10B

2. The user recognizes the limitations of data. Use of the data is at the users'' own risk, and there is no warranty as to the quality or accuracy of any data, or the fitness of the data for your intended use. The data are not necessarily fully quality assured and cannot be expected to be free from measurement uncertainty, systematic biases, or errors of interpretation or analysis, and may include inaccuracies in error margins quoted with the data.

Metadata language
EnglishEnglish
Topic category
  • Geoscientific information
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Begin date
1996-12-16
End date
1997-01-08
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

Survey flights were restricted to times when a minimum of five satellites could be recorded both on the aircraft and at the ground station. The relative Dilution of Precision (RDOP) never rose above 5.0. Post-flight continuous kinematic differential GPS processing was carried out using Trimble GPSurvey software. RMS errors were ca. 0.08 m and the absolute positional accuracy is thought to be better than 5 m.

Caesium-vapour magnetometers have a sensitivity of 0.005 nT, but the Dash-7 serves a dominantly logistic role, and so, it cannot provide the same data quality as a dedicated aeromagnetic survey plane. As a result, fourth digital differences (a commonly used figure of merit) for a typical uncompensated flight line are within 1.5 nT and this value drops to below 1 nT after compensation.

No values are given for MagC, TCorr, MagRTC, BCorr, MagBRTC and SCorr. These channels are included for compatibility with ADMAP2 convention.

File identifier
GB_NERC_BAS_PDC_01342 XML
Metadata language
EnglishEnglish
Hierarchy level
dataset Dataset
Date stamp
2020-08-07
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/01342
 
 

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