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ASY and SYM indices

ResourceID
spase://GBO/NumericalData/Indices/ASY-SYM/PT1M

Description
ASY and SYM geomagnetic indices. The web site of WDC for Geomagnetism at Kyoto U., url given below, offers plots and numeric downloads for 1-minute ASY, SYM, and related indices. Values of ASY-D, ASY-H, SYM-D, and SYM-H are available from 1981 to within 1-2 months of current date. All ASY and SYM data are currently (as of 12/07/2011) marked as "provisional." Alternative sources of the WDC/Kyoto-generated ASY and SYM indices include the 1-min OMNI data set at NASA/GSFC/SPDF.

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Version:2.3.0

NumericalData

ResourceID
spase://GBO/NumericalData/Indices/ASY-SYM/PT1M
ResourceHeader
ResourceName
ASY and SYM indices
ReleaseDate
2018-08-01 17:53:31Z
Description
ASY and SYM geomagnetic indices. The web site of WDC for Geomagnetism at Kyoto U., url given below, offers plots and numeric downloads for 1-minute ASY, SYM, and related indices. Values of ASY-D, ASY-H, SYM-D, and SYM-H are available from 1981 to within 1-2 months of current date. All ASY and SYM data are currently (as of 12/07/2011) marked as "provisional." Alternative sources of the WDC/Kyoto-generated ASY and SYM indices include the 1-min OMNI data set at NASA/GSFC/SPDF.
Acknowledgement
WDC for Geomagnetism (Kyoto-U., Japan)
Contacts
Role Person StartDate StopDate Note
1. GeneralContact spase://SMWG/Person/Toshihiko.Iyemori
InformationURL
Name
Description of ASY and SYM
URL
http://wdc.kugi.kyoto-u.ac.jp/aeasy/asy.pdf
Description
Paper by T. Iyemori et al. on derivation of ASY and SYM indices, and on their relation to Dst and AE indices.
PriorIDs
spase://VSPO/NumericalData/ASY_SYM_Indices
spase://VSPO/NumericalData/WDC/Indices/ASY-SYM/PT1M
AccessInformation
RepositoryID
spase://SMWG/Repository/WDC/Geomagnetism/KyotoU
Availability
Online
AccessRights
Open
AccessURL
Name
WDC for Geomagnetism at Kyoto U.
URL
http://wdc.kugi.kyoto-u.ac.jp/aedir/index.html
Description
Multi-option path to AE and related indices at Kyoto, including index documentation and history files.
Format
Text
AccessInformation
RepositoryID
spase://SMWG/Repository/NASA/GSFC/SPDF
Availability
Online
AccessRights
Open
AccessURL
Name
OMNIWeb
URL
https://omniweb.gsfc.nasa.gov/ow_min.html
Description
Path to 1-min OMNI data set for 1995 and later, with subset/plot/list functionalities, and to ftp accessibility.
Format
Text
ProviderProcessingLevel
Calibrated
MeasurementType
MagneticField
MeasurementType
ActivityIndex
TemporalDescription
TimeSpan
StartDate
1981-01-01 00:00:00
RelativeStopDate
-P1M
Cadence
PT1M
ObservedRegion
Earth.Surface