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Leeds dynamo simulations for the analysis of rapid changes in the geomagnetic field (NERC Grant NE/V009052/1)

Leeds dynamo simulations for the analysis of rapid changes in the geomagnetic field. In each folder, the following file can be found: - state.cdf.in - the configuration file used as an intial condition to launch each simulation Some folders have multiple state.cdf.in files for each run of the same simulation, if only part of the data was needed to be reproduced. Additionally, most folders contain: - LSD.info/main.info - Contains details of the parameters for each simulation, which can be used for reference when recompiling the code - LSD.out/main.out - the exectuable used to submit a simulation to a hpc; for the code to be reran, this would have to be recompiled (see Leeds_Dynamo_Code_Manual.pdf) - run.bolt/run.sh - the scripts used to submit a simulation to the leeds hpc (.sh file) or archer2 (.bolt file) Details of how to run the Leeds dynamo code can be found in Leeds_Dynamo_Code_Manual.pdf, which contains a more in-depth description of input parameters, boundary conditions, output data etc. The parameters for each simulation can also be found in the spreadsheet 'SimulationsLog'. More details about the difference between thermally-driven and thermochemically-driven cases can be found in Nakagawa and Davies, 2022. Note all simulations have Prandtl number Pr=1. We have ran a series of simulations to help us elucidate the origin of rapid changes in the Earth's magnetic field. Observational models of the magnetic field have found changes in field intensity and direction that significantly faster than the values and averages for the modern field. The simulations provided here have been analysed to find the features that best reproduce dynamical and morphological agreement with the observed field, as well as to find rapid changes in the simulated field that are in agreement with that of the observed field (see Nakagawa and Davies 2022). Simulations have been ran using the Leeds Dynamo Code, and the configuration files provided here allow users to reproduce and interpret the data used for analysis.

Simple

Date (Creation)
2023-09-16
Identifier
http://data.bgs.ac.uk/id/dataHolding/13608143
Originator
  University of Leeds - Stephen Mason ( School of Earth and Environment )
Leeds , LS2 9JT ,
Distributor
  British Geological Survey - Enquiries
Point of contact
  British Geological Survey - Enquiries
Maintenance and update frequency
notApplicable notApplicable
GEMET - INSPIRE themes, version 1.0
  • Geology
BGS Thesaurus of Geosciences
  • Geomagnetic fields
  • NGDC Deposited Data
  • Geophysics
  • Tectonics
dataCentre
  • NGDC Deposited Data
Keywords
  • NERC_DDC
Access constraints
otherRestrictions Other restrictions
Other constraints
licenceOGL
Other constraints
Available under the Open Government Licence subject to the following acknowledgement accompanying the reproduced NERC materials "Contains NERC materials ©NERC [year]"
Use constraints
otherRestrictions Other restrictions
Other constraints
The copyright of materials derived from the British Geological Survey's work is vested in the Natural Environment Research Council [NERC]. No part of this work may be reproduced or transmitted in any form or by any means, or stored in a retrieval system of any nature, without the prior permission of the copyright holder, via the BGS Intellectual Property Rights Manager. Use by customers of information provided by the BGS, is at the customer's own risk. In view of the disparate sources of information at BGS's disposal, including such material donated to BGS, that BGS accepts in good faith as being accurate, the Natural Environment Research Council (NERC) gives no warranty, expressed or implied, as to the quality or accuracy of the information supplied, or to the information's suitability for any use. NERC/BGS accepts no liability whatever in respect of loss, damage, injury or other occurence however caused.
Other constraints
Available under the Open Government Licence subject to the following acknowledgement accompanying the reproduced NERC materials "Contains NERC materials ©NERC [year]"
Metadata language
EnglishEnglish
Topic category
  • Geoscientific information
Begin date
2020-07-01
End date
2023-09-01

Reference System Information

No information provided.
Distribution format
  • PDF ()

  • MS Excel ()

  • TGZ ()

  • INFO file ()

  • OUT file ()

  • BOLT file ()

  • IN File ()

Distributor
  British Geological Survey - Enquiries
OnLine resource
Data
Hierarchy level
nonGeographicDataset Non geographic dataset
Other
non geographic dataset

Conformance result

Date (Publication)
2011
Explanation
See the referenced specification
Pass
No

Conformance result

Date (Publication)
2010-12-08
Explanation
See http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2010:323:0011:0102:EN:PDF
Pass
No
Statement
Data has been produced by running simulations using the Leeds Dynamo Code on ARC4, part of the High Performance Computing facilities at the University of Leeds, UK and on ARCHER-2 of the UK National Supercomputing Service by UKRI and University of Edinburgh.
File identifier
0b603a57-8763-6e08-e063-0937940a6ad2 XML
Metadata language
EnglishEnglish
Hierarchy level
nonGeographicDataset Non geographic dataset
Hierarchy level name
non geographic dataset
Date stamp
2025-11-13
Metadata standard name
UK GEMINI
Metadata standard version
2.3
Point of contact
  British Geological Survey
Environmental Science Centre,Keyworth , NOTTINGHAM , NOTTINGHAMSHIRE , NG12 5GG , United Kingdom
+44 115 936 3100
Dataset URI
http://data.bgs.ac.uk/id/dataHolding/13608143
 
 

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