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Extremal forecast of latitude, longitude and intensity of the geomagnetic dipole between 2019 and 2119 (NERC Grant NE/P016758/1)

This dataset contains extremal forecast of latitutude (lat), longitude (lon) and intensity of the geomagnetic dipole between 2019 and 2119. The geomagnetic dipole is evolved by a fluid flow at the core-mantle boundary that maximises the rate-of-change of the dipole latitude. The forecast is calculated from the year 2019 assuming that the geomagnetic field is described by the CHAOS-7 dataset. The optimisation procedure is described in https://doi.org/10.3390/geosciences11080318

Default

Identification info

Metadata Language
English (en)
Dataset Reference Date ()
2022-01-20
Identifier

http://data.bgs.ac.uk/id/dataHolding/13607898

 

University of Liverpool

-

Dr P Livermore


 

ETH Zurich

-

Stefano Maffei


Zurich

,

Switzerland

,
 

British Geological Survey

-

Enquiries


 

British Geological Survey

-

Enquiries


Maintenance and update frequency
notApplicable
GEMET - INSPIRE themes
  • Geology
BGS Thesaurus of Geosciences
  • Geomagnetic poles

  • Geomagnetic fields

Keywords
  • NERC_DDC

Limitations on Public Access
otherRestrictions
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 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]"

Topic category
  • Geoscientific information
Begin date
2019-07-01
End date
2021-07-31
 

Spatial Reference System

No information provided.

Distribution Information

Data format
  • text document

    ()

Resource Locator
Data
Resource Locator
Data
 
Quality Scope
nonGeographicDataset
Other

non geographic dataset

Report

Dataset Reference Date ()
2011
Explanation

See the referenced specification

Degree

Report

Dataset Reference Date ()
2010-12-08
Explanation

See http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2010:323:0011:0102:EN:PDF

Degree
Statement

The extreme forecast are prepared via the following procedure: 1. The magnetic field at the core-mantle boundary in 2019 is given by the CHAOS-7 geomagnetic field model 2. Using the optimisation methodology published in https://doi.org/10.3390/geosciences11080318, the flow that maximises the instantaneous rate-of-change in dipole latitude is derived. A root-mean-square flow speed of 13 km/yr at the core-mantle boundary is prescribed. Either unrestricted or equatorially symmetric flow geometries can be chosen. 3. The optimal flow is used to evolve the core-mantle boundary magnetic field in time by solving the induction equation via a second order AB time-stepping scheme. 4. After one year of evolution the optimal flow is calculated again from the resulting core-mantle boundary magnetic field 5. Repeat from 3.

Metadata

File identifier
d6923465-3407-38e2-e054-002128a47908 XML
Metadata Language
English (en)
Resource type
nonGeographicDataset
Hierarchy level name

non geographic dataset

Metadata Date
2023-03-30
Metadata standard name
UK GEMINI
Metadata standard version

2.3

 

British Geological Survey


Environmental Science Centre,Keyworth

,

NOTTINGHAM

,

NOTTINGHAMSHIRE

,

NG12 5GG

,

United Kingdom

+44 115 936 3100
 
 

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