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Amberley Magnetometer 1-hr Data in ASCII Flat Table Format

ResourceID
spase://GBO/NumericalData/Amberley/Magnetometer/PT1H/ASCII_FORMAT

Description

Amberley Magnetometer data, 1-hr time resoluion, in ASCII format. Magnetic Field Vector Element List: DHZ. Note that the list of magnetic field elements that appear in the data set may change over the course of time. For instance, many stations have shifted from DHZ to the XYZ representation of the magnetic field. The time history listed below summarizes changes in element content. A description of the WDC Data Exchange Format for CADENCE magnetic field data is included at the end of this data product description.

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Details

Version:2.3.0

NumericalData

ResourceID
spase://GBO/NumericalData/Amberley/Magnetometer/PT1H/ASCII_FORMAT
ResourceHeader
ResourceName
Amberley Magnetometer 1-hr Data in ASCII Flat Table Format
ReleaseDate
2019-05-05 12:34:56Z
Description

Amberley Magnetometer data, 1-hr time resoluion, in ASCII format. Magnetic Field Vector Element List: DHZ. Note that the list of magnetic field elements that appear in the data set may change over the course of time. For instance, many stations have shifted from DHZ to the XYZ representation of the magnetic field. The time history listed below summarizes changes in element content. A description of the WDC Data Exchange Format for CADENCE magnetic field data is included at the end of this data product description.

Acknowledgement
Please acknowledge: Amberley Observatory Director for providing the data observations, and the British Geological Survey, World Data Center for Geomagnetism, Edinburgh for providing access to the data.
Contacts
RolePersonStartDateStopDateNote
1.GeneralContact
DataProducer		spase://SMWG/Person/WDC/Director.Amberley.Observatory
2.MetadataContact
TechnicalContact		spase://SMWG/Person/Lee.Frost.Bargatze
InformationURL
Name
The Geomagnetic Data Master Catalog at the WDC for Geomagnetism, Edinburgh
URL
http://www.wdc.bgs.ac.uk/catalog/intro.html
Description

Web site for access to magnetometer data hosted by the World Data Center for Geomagnetism, Edinburgh

Association
AssociationID
spase://GBO/NumericalData/Amberley/Magnetometer/PT1H/WDC_FORMAT
AssociationType
DerivedFrom
PriorIDs
spase://VMO/NumericalData/Amberley/Magnetometer/PT1H/ASCII
spase://VMO/NumericalData/Amberley/Magnetometer/PT1H/ASCII_FORMAT
AccessInformation
RepositoryID
spase://SMWG/Repository/UCLA/VMO
Availability
Online
AccessRights
Open
AccessURL
Name
The UCLA VMO Data Repository
URL
http://vmo.igpp.ucla.edu/data1/WDC/MAGNETOGRAM/Amberley/PT1H/TXT/
Description

The Virtual Magnetospheric Observatory (VMO) Data Repository hosted by the Institute of Geophysics and Planetary Physics (IGPP) at the University of California, Los Angeles (UCLA).

Format
Text
Encoding
GZIP
DataExtent
Quantity
825696
Units
bytes
Per
P1Y
Acknowledgement
Please thank the British Geological Survey, World Data Center, Edinburgh for use of data from the WDC Geomagnetic Data Master Catalog. The WDC to ASCII translation was performed at UCLA and the derived ASCII formatted data are available via the UCLA VMO data repository.
ProcessingLevel
Calibrated
InstrumentIDs
spase://SMWG/Instrument/Ground/Amberley/Magnetometer
MeasurementType
MagneticField
TemporalDescription
TimeSpan
StartDate
1957-07-01 00:00:00.000
StopDate
1977-09-30 23:00:00.000
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 stop dates could be inaccurate as they are assigned assuming an absence of such gaps.
Cadence
PT1H
ObservedRegion
Earth.Surface
Keywords
ground station
magnetometer
magnetic field
magnetogram
Amberley
WDC Station Code: AML
1-hour
ASCII Flat File
ASCII Flat Table
Parameter #1
Name
Universal Time
ParameterKey
Time
Description

Time is expressed using a five column format with the following order: year, month, day, hour, and minute, each stored in interger format. The time columns are the first five columns (1,2,3,4,5) in the flat file.

Cadence
PT1H
Structure
Size
5
Description

Universal Time expressed using a 5-column year, month, day, hour, minute representation

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
Element
Name
Minute
Index
5
ParameterKey
Column_5
Support
SupportQuantity
Temporal
Parameter #2
Name
Magnetic Field DHZ
Description

Amberley Magnetic Field in DHZ Coordinates

Cadence
PT1H
CoordinateSystem
CoordinateRepresentation
Cylindrical
CoordinateSystemName
CGM
Structure
Size
3
Description

Amberley Magnetic Field Data in DHZ Coordinates. The DHZ data columns are numbers (6,8,11) in the flat file.

Element
Name
D
Qualifier
DirectionAngle.AzimuthAngle
Index
1
ParameterKey
Column_6
Units
Degree
UnitsConversion
2*pi > Radian
ValidMin
-180.0
ValidMax
180.0
FillValue
-99999.999
Element
Name
H
Qualifier
Projection.IJ
Index
2
ParameterKey
Column_8
Units
nT
UnitsConversion
10^9 >T
ValidMin
-70000
ValidMax
70000
FillValue
-99999.999
Element
Name
Z
Qualifier
Component.K
Index
3
ParameterKey
Column_11
Units
nT
UnitsConversion
10^9 >T
ValidMin
-70000
ValidMax
70000
FillValue
-99999.999
Field
Qualifier
Vector
FieldQuantity
Magnetic
Parameter #3
Name
Amberley Magnetic Field XYZ
Description

Amberley Magnetic Field in XYZ coordinates

Cadence
PT1H
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
CGM
Structure
Size
3
Description

Amberley Magnetic Field Data in XYZ Coordinates. The XYZ data columns are numbers (9,10,11) in the flat file.

Element
Name
X
Qualifier
Component.I
Index
1
ParameterKey
Column_9
Units
nT
UnitsConversion
10^9 >T
ValidMin
-70000
ValidMax
70000
FillValue
-99999.999
Element
Name
Y
Qualifier
Component.J
Index
2
ParameterKey
Column_10
Units
nT
UnitsConversion
10^9 >T
ValidMin
-70000
ValidMax
70000
FillValue
-99999.999
Element
Name
Z
Qualifier
Component.K
Index
3
ParameterKey
Column_11
Units
nT
UnitsConversion
10^9 >T
ValidMin
-70000
ValidMax
70000
FillValue
-99999.999
Field
Qualifier
Vector
FieldQuantity
Magnetic
Parameter #4
Name
Magnetic Field Inclination
ParameterKey
Column_7
Description

Amberley Magnetic Field Vector Inclination

Cadence
PT1H
Units
Degree
UnitsConversion
2*pi > Radian
ValidMin
-180.0
ValidMax
180.0
FillValue
-99999.999
Field
Qualifier
DirectionAngle.ElevationAngle
FieldQuantity
Magnetic
Parameter #5
Name
Magnetic Field Magnitude
ParameterKey
Column_12
Description

Amberley Magnetic Field Vector Magnitude

Cadence
PT1H
Units
nT
UnitsConversion
10^9 >T
ValidMin
0
ValidMax
70000
FillValue
-99999.999
Field
Qualifier
Magnitude
FieldQuantity
Magnetic