Two Gorgon Global-MHD simulations of steady solar wind conditions

This dataset contains data produced by two Gorgon Global magnetohydrodynamic (MHD) simulations with steady solar wind conditions interacting with the Earth's magnetosphere, as utilised in the study of Desai et al. (2021b). Further description of the Gorgon MHD model can be found at Mejnertsen et al., (2016,2018), Eggington et al., (2020) and Desai et al., (2021a). The data was produced on the Imperial College High Performance Computing Service (doi: 10.14469/hpc/2232).



Two MHD simulations are contained; one with northward Interplanetary Magnetic Field (IMF) conditions and one with southward (IMF) conditions. The northward IMF condition is run with a grid resolution of 0.25 earth radii (RE) and the southward IMF conditions is run three times for grid resolutions of 0.5, 0.25 and 0.125 RE.



The MHD equations were solved in the magnetosphere on a regular 3-D Cartesian grid, covering a domain of dimensions (-20,100) RE in X, (-40,40) RE in Y and (-40,40) RE in Z with an inner boundary at 3 RE. In this coordinate system the Sun lies in the negative X-direction, the Z axis is aligned to the dipole in the 0 degree tilt case (where positive tilt points the north magnetic pole towards the Sun), and Y completes the right-handed set.



Output data is timestamped in seconds and is defined at the centre of the grid cells. The simulation data corresponding to each shock are stored in separate directories 'NorthwardX' and 'SouthwardX' where X is the grid resolution in RE of: 0.5 for the northward case and 0.5, 0.25 and 0.125 for the southward case. The data are stored in hdf5 format.



The magnetospheric variables are stored in the files: 'Gorgon_[YYYYMMDD]_MS_params_[XXXXX]s.hdf5' where XXXXX is the simulation time in seconds. The magnetospheric data includes the magnetic field, ('Bvec_c') and Electric field, ('Evec'), after 2hrs of simulation. The data are of shape (240,160,160,3) where the first 3 dimensions are the grid indices in (X,Y,Z) indexed from negative to positive, and the final dimension is the cartesian vector component in (i,j,k).





Funding was provided by NERC Highlight grant to NE/P017347/1 (Rad-Sat).

Simple

Date (Creation)
2021-07-26
Date (Revision)
2021-07-26
Date (Publication)
2021-07-26
Date (released)
2021-07-26
Edition

1.0
Unique resource identifier
https://doi.org/10.5285/005fe820-fea8-4749-a37b-add14efe6353
Codespace

doi
Unique resource identifier
GB/NERC/BAS/PDC/01531
Codespace

https://data.bas.ac.uk/

Unique resource identifier
NE/P017347/1
Codespace

award
Other citation details

Please cite this item as: Desai, R., Eastwood, J., & Chittenden, J. (2021). Two Gorgon Global-MHD simulations of steady solar wind conditions (Version 1.0) [Data set]. NERC EDS UK Polar Data Centre. https://doi.org/10.5285/005fe820-fea8-4749-a37b-add14efe6353

Credit

No credit.
Status
Completed
Point of contact
Organisation name Individual name Electronic mail address Role
Imperial College London Desai, Ravindra Author
Imperial College London Eastwood, Jonathan Author
Imperial College London

Chittenden, Jeremy

 		Author
NERC EDS UK Polar Data Centre

PDCServiceDesk@bas.ac.uk

Point of contact
Maintenance and update frequency
As needed
Maintenance note
Completed
Global Change Master Directory (GCMD) Science Keywords
Theme

  • Global-MHD

  • interplanetary shocks

  • magnetopause

  • magnetosphere

  • solar wind
Place

  • Magnetosphere (other)

GEMET - INSPIRE themes, version 1.0
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no limitations to public access
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no limitations
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Open Government Licence v3.0
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Data supplied under Open Government Licence v3.0
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doi
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doi
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dependency
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doi
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doi
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doi
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doi
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doi
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doi
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doi
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doi
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doi
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doi
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url
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url
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Larger work citation
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url
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url
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Text, table
Language
English
Character set
UTF8
Topic category
  • Climatology, meteorology, atmosphere
N
S
E
W
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Supplemental Information

It is recommended that careful attention be paid to the contents of any data, and that the author be contacted with any questions regarding appropriate use. If you find any errors or omissions, please report them to polardatacentre@bas.ac.uk.

Title

European Petroleum Survey Group (EPSG) Geodetic Parameter Registry
Date (Publication)
2008-11-12
Cited responsible party
Organisation name Individual name Electronic mail address Role

European Petroleum Survey Group

EPSGadministrator@iogp.org

Publisher
Unique resource identifier
urn:ogc:def:crs:EPSG::3031
Version

6.18.3

Distributor

Distributor contact
Organisation name Individual name Electronic mail address Role
NERC EDS UK Polar Data Centre

PDCServiceDesk@bas.ac.uk

Distributor
Distributor format
Name Version
application/x-hdf
Units of distribution

bytes
Transfer size
24696061952
OnLine resource
Protocol Linkage Name

WWW:LINK-1.0-http--link

 		https://ramadda.data.bas.ac.uk/repository/entry/show?entryid=005fe820-fea8-4749-a37b-add14efe6353

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Methodology:

The MHD equations were solved in the magnetosphere on a regular 3-D Cartesian grid, covering a domain of dimensions (-20,100) RE in X, (-40,40) RE in Y and (-40,40) RE in Z with an inner boundary at 3 RE. In this coordinate system the Sun lies in the negative X-direction, the Z axis is aligned to the dipole in the 0 degree tilt case (where positive tilt points the north magnetic pole towards the Sun), and Y completes the right-handed set.

Data quality:

Output data is timestamped in seconds and is defined at the centre of the grid cells. The simulation data corresponding to each shock are stored in separate directories 'NorthwardX' and 'SouthwardX' where X is the grid resolution in RE of: 0.5 for the northward case and 0.5, 0.25 and 0.125 for the southward case. The data are stored in hdf5 format.



The magnetospheric variables are stored in the files: 'Gorgon_[YYYYMMDD]_MS_params_[XXXXX]s.hdf5' where XXXXX is the simulation time in seconds. The magnetospheric data includes the magnetic field, ('Bvec_c') and Electric field, ('Evec'), after 2hrs of simulation. The data are of shape (240,160,160,3) where the first 3 dimensions are the grid indices in (X,Y,Z) indexed from negative to positive, and the final dimension is the cartesian vector component in (i,j,k).

Metadata

File identifier
005fe820-fea8-4749-a37b-add14efe6353 XML
Metadata language
English
Character set
UTF8
Hierarchy level
Dataset
Hierarchy level name

dataset
Date stamp
2021-07-26
Metadata standard name

ISO 19115 Geographic Information - Metadata
Metadata standard version

ISO 19115:2003(E)
Metadata author
Organisation name Individual name Electronic mail address Role
NERC EDS UK Polar Data Centre

polardatacentre@bas.ac.uk

Point of contact
 
 

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Spatial extent

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Keywords

Global-MHD interplanetary shocks magnetopause magnetosphere solar wind
GEMET - INSPIRE themes, version 1.0

Atmospheric conditions
Global Change Master Directory (GCMD) Science Keywords

EARTH SCIENCE > Sun-earth Interactions > Ionosphere/Magnetosphere Dynamics EARTH SCIENCE > Sun-earth Interactions > Ionosphere/Magnetosphere Dynamics > Solar Wind


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