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Magnetic Field Hourly Mean Charters.Towers Station

ResourceID
spase://GBO/NumericalData/Svalgaard/Charters.Towers/PT1H

Description
Hourly mean magnetic field data determined for magnetometer data from the Charters.Towers station (IAGA Station Code: CTA). The field observations that have been corrected for possible errors in timing, calibration, sign, transcription, omission, and misunderstanding. The hourly mean is calculated using data from the beginning of the hour to the end.

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Version:2.2.9

NumericalData

ResourceID
spase://GBO/NumericalData/Svalgaard/Charters.Towers/PT1H
ResourceHeader
ResourceName
Magnetic Field Hourly Mean Charters.Towers Station
AlternateName
IAGA:Charters.Towers Hourly Mean Magnetic Field
AlternateName
IAGA:CTA Hourly Mean Magnetic Field
ReleaseDate
2019-05-05 12:34:56Z
Description
Hourly mean magnetic field data determined for magnetometer data from the Charters.Towers station (IAGA Station Code: CTA). The field observations that have been corrected for possible errors in timing, calibration, sign, transcription, omission, and misunderstanding. The hourly mean is calculated using data from the beginning of the hour to the end.
Acknowledgement
Please acknowledge Leif Svalgaard and Edward W. Cliver when using this data.
Contacts
Role Person StartDate StopDate Note
1. PrincipalInvestigator spase://SMWG/Person/Leif.Svalgaard
2. PrincipalInvestigator spase://SMWG/Person/Edward.W.Cliver
3. MetadataContact spase://SMWG/Person/Todd.A.King

InformationURL
Name
InterHourly Variability (IHV) Index Publication
URL
https://www.leif.org:443/research/2007JA012437.pdf
Description
Information regarding the generation of the hourly mean data and its use in calculating interhourly variability (IHV) index of geomagnetic activity can be found in "Interhourly variability index of geomagnetic activity and its use in deriving the long-term variation of solar wind speed", Svalgaard, Leif and Cliver, Edward W., Journal of Geophysical Research, Vol. 112, A10111, doi:10.1029/2007JA012437, 2007.
PriorIDs
spase://VMO/NumericalData/Svalgaard/Charters.Towers/PT1H
AccessInformation
RepositoryID
spase://SMWG/Repository/UCLA/VMO
Availability
Online
AccessRights
Open
AccessURL
Name
VMO Data Repository
URL
http://vmo.igpp.ucla.edu/data1/Svalgaard/CTA.TXT
Description
The Virtual Magnetospheric Observatory Data Repository hosted by the Institute of Geophysics and Planetary Physics, University of California, Los Angeles.
Format
Text
Encoding
ASCII
Acknowledgement
Leif Svalgaard and Edward W. Cliver for the generation of the interhourly variability (IHV) index of geomagnetic activity.
ProcessingLevel
Calibrated
InstrumentIDs
spase://SMWG/Instrument/Ground/Charters.Towers/Magnetometer
MeasurementType
MagneticField
TemporalDescription
TimeSpan
StartDate
1989-01-01 00:00:00
StopDate
2011-12-31 23:00:00
Note
Some data gaps may be present. If a gap is present at the beginning or end of the file, the time span start and end dates could be inaccurate as they are assigned assuming an absence of such gaps.
Cadence
PT1H
ObservedRegion
Earth.Magnetosphere
Keywords
Charters.Towers
CTA
IAGA:CTA
Magnetic Field
Magnetometer
Ground Station
Parameter #1
Name
Time
Description
Universal Time (UT) Start of Hour
Units
s
Structure
Size
4
Element
Name
Year
Index
1
ParameterKey
Column_1
Element
Name
Month
Index
2
ParameterKey
Column_2
Element
Name
Day
Index
3
ParameterKey
Column_3
Element
Name
Hour
Index
4
ParameterKey
Column_4
Support
SupportQuantity
Temporal
Parameter #2
Name
Magnetic Field (DHZ)
Description
Magnetic Field Vector expressed by using H, D and Z.
Units
nT
UnitsConversion
1e-9>T
CoordinateSystem
CoordinateRepresentation
Cylindrical
CoordinateSystemName
CGM
Structure
Size
3
Description
The total magnetic field vector expressed by using H, the horizontal field magnitude, D, the horizontal field declination, and Z, the vertical magnetic field.
Element
Name
D
Qualifier
DirectionAngle.AzimuthAngle
Index
1
ParameterKey
Column_6
Units
Tenth of an Angular Minute
UnitsConversion
pi/(600*180)>rad
FillValue
999999
Element
Name
H
Qualifier
Projection.IJ
Index
2
ParameterKey
Column_5
Units
nT
UnitsConversion
1e-9>T
FillValue
999999
Element
Name
Z
Qualifier
Component.K
Index
3
ParameterKey
Column_9
Units
nT
UnitsConversion
1e-9>T
FillValue
999999
Field
Qualifier
Vector
FieldQuantity
Magnetic
Parameter #3
Name
Magnetic Field (XYZ)
Description
Total Magnetic Field Vector expressed by using X, Y, and Z
Units
nT
UnitsConversion
1e-9>T
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
CGM
Structure
Size
3
Description
The total magnetic field vector expressed by using the X, Y, and Z-components measured positive northward, positive eastward, and positive down, respectively
Element
Name
X
Qualifier
Component.I
Index
1
ParameterKey
Column_7
Units
nT
UnitsConversion
1e-9>T
FillValue
999999
Element
Name
Y
Qualifier
Component.J
Index
2
ParameterKey
Column_8
Units
nT
UnitsConversion
1e-9>T
FillValue
999999
Element
Name
Z
Qualifier
Component.K
Index
3
ParameterKey
Column_9
Units
nT
UnitsConversion
1e-9>T
FillValue
999999
Field
Qualifier
Vector
FieldQuantity
Magnetic
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Last Updated: 2019-05-05