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Model of the core field, related to SW_CFW_SHA_2Y

Series of core field models provided in terms of Gauss coefficients + covariance matrices + standard deviations of Gauss coefficients. Related to SW_CFW_SHA_2Y


• Core field Gauss coefficients stored in the .shc file

• The standard deviations of Gauss coefficients are stored in the .std file

• The covariance matrices are stored in the .cov file


The product consists in three files


MCO_SHA_2Y shc and std file

The format used has been set in accordance with the usual SHC format defined for this type of files. Units of Gauss coefficients are nT

With a very similar format the standard deviations of the Gauss coefficients are provided in an independent file with the extension *.std

The only difference in the format is on the first line where the B-spline order, and the number of intervals between spline knots, are not indicated. Units of standard deviations are nT.


MCO_SHA_2Ycov file

In this independent file with the extension *.cov, the covariance matrice upper triangles (i.e. variances and covariances) is provided.

A covariance matrice being symmetric no information is lost.

The format of the file is:

• On the first line the series of dates (in decimal years) of the mean snapshot core field models associated with the covariance matrices.

• On the next lines are indicated: the row index of the covariance matrix, the column index of the covariance matrix, followed by the time series of variances or covariances in the order given by the first line dates. Units of matrix elements are nT2.

Simple

Date (Revision)
2023-01-01
Citation identifier
SW_MCO_SHA_2Y

Status
On going
Distributor
  ESA ESA ESA - ( )
Point of contact
  IPGP IPGP IPGP -
Maintenance and update frequency
Annually
FormaTerre | Platform ontology
  • Swarm
FormaTerre | Distributor
  • IPGP
FormaTerre | Solid Earth Discipline ontology
  • Geomagnetism
Spatial representation type
Text, table
Language

eng

Character set
UTF8
Topic category
  • Geoscientific information
N
S
E
W
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Begin date
1999-01-01
Reference system identifier
WGS 1984
Distribution format
  • ASCII ( )

  • SHC ( )

  ESA -
OnLine resource
Product repository ( WWW:LINK-1.0-http--link )
OnLine resource
ESA product page ( WWW:LINK-1.0-http--link )
OnLine resource
FTP Repository ( WWW:DOWNLOAD-1.0-ftp--download )
OnLine resource
Ropp, G., Lesur, V., Baerenzung, J., and Holschneider, M. (2020) ( WWW:LINK-1.0-http--related )

Ropp, G., Lesur, V., Baerenzung, J., and Holschneider, M. (2020), Sequential modelling of the Earth’s core magnetic field, Earth, Planets and Space, 72(1) :153, doi :10.1186/s40623-020- 01230-1

OnLine resource
G Ropp, Vincent Lesur (2023) ( WWW:LINK-1.0-http--related )

G Ropp, Vincent Lesur. Mid-latitude and equatorial core surface flow variations derived from observatory and satellite magnetic data. Geophysical Journal International, 2023, 73 (1), pp.190.

10.1093/gji/ggad113. hal-04033876

Hierarchy level
Dataset

Extent

No information provided.
Statement

Input data: Derived from Swarm Level 1b MAGX_LR_1B, the Oersted, Champ, CryoSat data and the Magnetic Observatories data

File identifier
71edb6f4-ea34-4e14-8b7b-304cee327037 XML
Metadata language
Français
Character set
UTF8
Hierarchy level
Series
Date stamp
2024-05-10T10:10:01
Metadata standard name

ISO 19115:2003/19139

Metadata standard version

1.0

Point of contact
  FormaTerre - ( )
 
 

Overviews

overview
Logo Swarm mission

Spatial extent

N
S
E
W
thumbnail


Keywords


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Associated resources

Not available


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