Four Gorgon Global-MHD simulations of Fast Forward Interplanetary Shocks interacting with the Earth's magnetosphere

This dataset contains the data produced by four Gorgon Global magnetohydrodynamic (MHD) simulations of Fast-Forward Interplanetary Shocks of increasing strengths interacting with the Earth's magnetosphere, as described in the study of Desai et al. (2021). Further description of the Gorgon MHD model can be found at Mejnertsen et al., (2016,2018) and Eggington et al., (2020). The data was produced on the Imperial College High Performance Computing Service (doi: 10.14469/hpc/2232).

The MHD equations were solved in the magnetosphere on a regular 3-D cartesian grid of resolution 0.5 Earth radii (RE), 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 'ShockX' where X=I-IV. 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'), velocity, ('vvec'), plasma density, ('rho1'), and ion temperature, ('Ti'), after 2h of simulation, over the course of 10 minutes. The data for the magnetic field, ('Bvec_c'), and velocity, ('vvec'), 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). The data for the density, ('rho1'), and ion temperature, ('Ti'), is of shape (240,160,160) where the first 3 dimensions are the grid indices in (X,Y,Z) indexed from negative to positive.

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

Date (Creation): 2021-04-23

Date (Revision): 2021-04-23

Date (Publication): 2021-04-23

Date (released): 2021-04-23

Edition: 1.0

Unique resource identifier: https://doi.org/10.5285/3774fa5b-f2fb-42c3-9091-5b11ac9744ea

Codespace: doi

Unique resource identifier: GB/NERC/BAS/PDC/01485

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). Four Gorgon Global-MHD simulations of Fast Forward Interplanetary Shocks interacting with the Earth's magnetosphere (Version 1.0) [Data set]. NERC EDS UK Polar Data Centre. https://doi.org/10.5285/3774fa5b-f2fb-42c3-9091-5b11ac9744ea

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

Atmospheric conditions

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Other constraints: Open Government Licence v3.0

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Other constraints: Data supplied under Open Government Licence v3.0

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Spatial representation type: Text, table

Language: English

Character set: UTF8

Topic category

Climatology, meteorology, atmosphere

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

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Name	Version
application/x-hdf

Units of distribution: bytes

Transfer size: 120688581018

OnLine resource

Protocol	Linkage	Name
WWW:LINK-1.0-http--link	https://ramadda.data.bas.ac.uk/repository/entry/show?entryid=3774fa5b-f2fb-42c3-9091-5b11ac9744ea	Get Data

Hierarchy level: Dataset

Statement: Methodology:

The MHD equations were solved in the magnetosphere on a regular 3-D cartesian grid of resolution 0.5 Earth radii (RE), 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 'ShockX' where X=I-IV. 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'), velocity, ('vvec'), plasma density, ('rho1'), and ion temperature, ('Ti'), after 2h of simulation, over the course of 10 minutes. The data for the magnetic field, ('Bvec_c'), and velocity, ('vvec'), 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). The data for the density, ('rho1'), and ion temperature, ('Ti'), is of shape (240,160,160) where the first 3 dimensions are the grid indices in (X,Y,Z) indexed from negative to positive.

Metadata

File identifier: 3774fa5b-f2fb-42c3-9091-5b11ac9744ea XML

Metadata language: English

Character set: UTF8

Hierarchy level: Dataset

Hierarchy level name: dataset

Date stamp: 2021-04-23

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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