Version:2.5.0
NumericalData
ResourceID
spase://IUGONET/NumericalData/NIPR/Iceland/HUS/induction/PT2S_cdf
ResourceHeader
ResourceName
CDF data of magnetic field measured at 2-sec intervals with the induction magnetometer at Husafell, Iceland.
ReleaseDate
2013-07-23 12:00:00
Description
Magnetic field measured with the induction magnetometer at Husafell, Iceland. The data consist of variations of three-dimensional (H, D, and Z components) geomagnetic field taken with a sampling rate of 0.5 Hz, and some engineering parameters for the instrument, such as the sensitivity and phase difference. (As of July 2013, the engineering parameters are invalid.) The digital data are distributed in the Common Data Format (CDF).
Acknowledgement
Please contact the Principal Investigator, Dr. Akira Kadokura (kadokura [at] nipr.ac.jp), National Institute of Polar Research (NIPR) before using the data at any publications and/or presentations. We welcome collaborative research and strongly recommend users to contact us early in order to ensure that the data are suitable for their research. When the data are used at any publications and/or presentations, we would like to ask the users to acknowledge NIPR and send us one copy of the reprints. An example of the acknowledgement statement is as follows: "Magnetic field data were provided by National Institute of Polar Research, Japan."
Contacts
AccessInformation
RepositoryID
Availability
Online
AccessRights
Open
AccessURL
Name
Conjugate Observation at Iceland
URL
AccessURL
Name
Conjugate Observation between Syowa Station and Iceland
URL
AccessURL
Name
IUGONET Database in NIPR
URL
Format
CDF
ProcessingLevel
Uncalibrated
InstrumentIDs
MeasurementType
MagneticField
TemporalDescription
TimeSpan
StartDate
1984-07-10 00:00:00
StopDate
2001-08-04 23:59:58
Cadence
PT2S
ObservedRegion
Earth.Magnetosphere
ObservedRegion
Earth.NearSurface.Ionosphere.ERegion
SpatialCoverage
CoordinateSystem
CoordinateRepresentation
Spherical
CoordinateSystemName
GEO
NorthernmostLatitude
64.67
SouthernmostLatitude
64.67
EasternmostLongitude
-21.03
WesternmostLongitude
-21.03
Keywords
EARTH SCIENCE Sun-earch Interaction Ionosphere/Magnetosphere Dynamics Magnetic Fields/Magnetic Currents
Parameter #1
Name
Epoch for the dB/dt data
ParameterKey
epoch_db_dt
Description
time label in CDF_EPOCH (the number of milliseconds since 01-Jan-0000) for the dB/dt data. All time values are in the universal time.
Units
millisecond
Support
Parameter #2
Name
Observation date and time for the dB/dt data
ParameterKey
time_db_dt
Description
Observation date and time for the dB/dt data. The time label for each time frame consists of an integer array of 7 elements for Year, month, day, hour, minute, second, milisecond. All time values are in the universal time.
Support
Parameter #3
Name
dB/dt values for 3-component vector magnetogram
ParameterKey
db_dt
Description
Time derivative of 3-component (dH/dt, dD/dt, and dZ/dt) vector geomagnetic field observed with a sampling rate of 0.5 Hz. The unit is voltage [V], that is, the raw output from the instrument.
Field
Parameter #4
Name
Pulse signal from the GPS clock associated with the magnetometer
ParameterKey
gps_1pps_time_pulse
Description
This parameter is invalid for this data.
Support
Parameter #5
Name
Frequency values for the sensitivity-phase difference table
ParameterKey
frequency
Description
Frequency values in Hz for the sensitivity-phase difference table for this induction magnetometer. As of July 2013, this parameter is invalid.
Support
Parameter #6
Name
Sensitivity coefficients for the sensitivity-phase difference table
ParameterKey
sensitivity
Description
Conversion coefficients in V/nT taking into account the frequency-dependent sensitivity for this induction magnetometer. As of July 2013, this parameter is invalid.
Support
Parameter #7
Name
Phase difference values for the sensitivity-phase difference table
ParameterKey
phase_difference
Description
Phase difference in degree for each frequency used for the phase calibration. As of July 2013, this parameter is invalid.
Support