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Siple Experiment broadband VLF data

(2020). Siple Experiment broadband VLF data [Data set]. Worldwide Archive of Low frequency Data and Observations (WALDO). https://doi.org/10.48322/44y4-4j02 (CiteAs link). Accessed on .

ResourceID
spase://ISWI/NumericalData/SipleExperiment/VLF/PT0.00004S

Description

The Siple Station experiment ran from 1973-1988, during which time
a long horizontal ELF transmitter was erected over a thick ice
sheet in Antarctica, described by Raghuram et al [1974]. The
transmitter broadcast tones and frequency ramps to probe the
magnetosphere’s excitation and response to injected ELF/VLF
signals, including amplification and triggered emissions from
wave-particle interactions, along with natural signals like
whistlers and chorus. Receivers were setup at Siple station (75.93
deg. S, 84.25 deg. W geographic, corresponding to an invariant
latitude of 60.4 deg. S, at L = 4.2), and
near the geomagnetic conjugate point (first at Roberval, Quebec,
Canada (48.52 deg. N, 72.23 deg. W) and in 1986
near Lake Mistissini, Canada (50.42 deg. N, 73.87 deg. W)). Complete results of the Siple
station experiment are summarized in Helliwell [1988] but analysis
work on this dataset continued well after the experiment
ended. These data were originally stored on Ampex magnetic tapes,
then converted over to a digitized format with some error
correction applied as described by Li et al [2014].

The sampling rate of these data are 25 kHz.

The filename naming convention is:

XXYYMMDDHHMMSS_ACC.mat

where

XX - Station ID

YY - Year

MM - Month

DD - Day

HH - Hour

MM - Minute

SS - Second

A - Sampling rate. 0 for 100 kHz sampled data (VLF), 1 for 1 MHz
sampled data (LF), 2 for 25 kHz sampled data (Siple station
experiment).

CC - 00 for N/S channel, 01 for E/W channel

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Details

Version:2.3.1

NumericalData

ResourceID
spase://ISWI/NumericalData/SipleExperiment/VLF/PT0.00004S
ResourceHeader
ResourceName
Siple Experiment broadband VLF data
DOI
https://doi.org/10.48322/44y4-4j02
ReleaseDate
2021-06-14 22:37:42Z
Description

The Siple Station experiment ran from 1973-1988, during which time
a long horizontal ELF transmitter was erected over a thick ice
sheet in Antarctica, described by Raghuram et al [1974]. The
transmitter broadcast tones and frequency ramps to probe the
magnetosphere’s excitation and response to injected ELF/VLF
signals, including amplification and triggered emissions from
wave-particle interactions, along with natural signals like
whistlers and chorus. Receivers were setup at Siple station (75.93
deg. S, 84.25 deg. W geographic, corresponding to an invariant
latitude of 60.4 deg. S, at L = 4.2), and
near the geomagnetic conjugate point (first at Roberval, Quebec,
Canada (48.52 deg. N, 72.23 deg. W) and in 1986
near Lake Mistissini, Canada (50.42 deg. N, 73.87 deg. W)). Complete results of the Siple
station experiment are summarized in Helliwell [1988] but analysis
work on this dataset continued well after the experiment
ended. These data were originally stored on Ampex magnetic tapes,
then converted over to a digitized format with some error
correction applied as described by Li et al [2014].

The sampling rate of these data are 25 kHz.

The filename naming convention is:

XXYYMMDDHHMMSS_ACC.mat

where

XX - Station ID

YY - Year

MM - Month

DD - Day

HH - Hour

MM - Minute

SS - Second

A - Sampling rate. 0 for 100 kHz sampled data (VLF), 1 for 1 MHz
sampled data (LF), 2 for 25 kHz sampled data (Siple station
experiment).

CC - 00 for N/S channel, 01 for E/W channel

Acknowledgement
DATA USAGE POLICY The data in the WALDO database have been collected by Stanford University, the Georgia Institute of Technology, and the University of Colorado Denver. Funding has been provided by the United States government under various basic science research grants over many years. To maximize the benefit of those investments, WALDO data are released without restriction, and can be freely analyzed or published. The curators of WALDO are Morris Cohen (Georgia Tech) and Mark Golkowski (CU-Denver). We request that the following acknowledgement be added in any publication using data from WALDO "VLF data are provided by the WALDO database (https://waldo.world), operated jointly by the Georgia Institute of Technology, and the University of Colorado Denver, using data collected from those institutions as well as Stanford University, and has been supported by various US government grants from the NSF, NASA, and the Department of Defense." If extensive amounts of WALDO data are used in a publication, the curators request, but do not require, to be contacted to discuss the possibility of joint authorship, with the WALDO curators providing help analyzing and interpreting the large dataset.
PublicationInfo
Authors
Helliwell, Robert A.; Katsufrakis, John P.; Li, J. D.; Spasojevic, M.; Harid, V.; Cohen, Morris B.; Golkowski, Mark; Inan, Umran S..
PublicationDate
2020-01-01 00:00:00
PublishedBy
Worldwide Archive of Low frequency Data and Observations (WALDO)
Contacts
RolePersonStartDateStopDateNote
1.ArchiveSpecialistspase://SMWG/Person/Morris.Cohen
InformationURL
Name
Worldwide Archive of Low-Frequency Data and Observations (WALDO)
URL
AccessInformation
RepositoryID
AccessURL
Name
Worldwide Archive of Low-Frequency Data and Observations (WALDO) Broadband Data
URL
Format
MATLAB_4
Acknowledgement
VLF data are provided by the WALDO database (https://waldo.world), operated jointly by the Georgia Institute of Technology, and the University of Colorado Denver, using data collected from those institutions as well as Stanford University, and has been supported by various US government grants from the NSF, NASA, and the Department of Defense.
InstrumentIDs
MeasurementType
Waves.Passive
TemporalDescription
TimeSpan
StartDate
1973-01-01 00:00:00
StopDate
1988-01-01 00:00:00
ObservedRegion
Earth.NearSurface
ObservedRegion
Earth.NearSurface.Ionosphere
Parameter #1
Name
start_year
Support
SupportQuantity
Temporal
Parameter #2
Name
start_month
Support
SupportQuantity
Temporal
Parameter #3
Name
start_day
Support
SupportQuantity
Temporal
Parameter #4
Name
start_hour
Support
SupportQuantity
Temporal
Parameter #5
Name
start_minute
Support
SupportQuantity
Temporal
Parameter #6
Name
start_second
Support
SupportQuantity
Temporal
Parameter #7
Name
latitude
Support
SupportQuantity
Positional
Parameter #8
Name
longitude
Support
SupportQuantity
Positional
Parameter #9
Name
altitude
Support
SupportQuantity
Positional
Parameter #10
Name
Fs
Description

Sampling rate of the data, 25 kHz.

CadenceMin
PT0.000001S
CadenceMax
PT0.00001S
Support
SupportQuantity
Other
Parameter #11
Name
gps_quality
Support
SupportQuantity
DataQuality
Parameter #12
Name
adc_channel_number
Support
SupportQuantity
Other
Parameter #13
Name
adc_sn
Support
SupportQuantity
Other
Parameter #14
Name
adc_type
Support
SupportQuantity
Other
Parameter #15
Name
antenna_bearings
Support
SupportQuantity
Orientation
Parameter #16
Name
antenna_description
Support
SupportQuantity
InstrumentMode
Parameter #17
Name
cal_factor
Support
SupportQuantity
Other
Parameter #18
Name
computer_sn
Support
SupportQuantity
Other
Parameter #19
Name
gps_sn
Support
SupportQuantity
Other
Parameter #20
Name
hardware_description
Support
SupportQuantity
InstrumentMode
Parameter #21
Name
is_broadband
Support
SupportQuantity
InstrumentMode
Parameter #22
Name
station_description
Support
SupportQuantity
Other
Parameter #23
Name
station_name
Support
SupportQuantity
Other
Parameter #24
Name
VERSION
Support
SupportQuantity
Other
Parameter #25
Name
data
Wave
WaveType
Electromagnetic
WaveQuantity
ACMagneticField
FrequencyRange
SpectralRange
RadioFrequency
Low
0.3
High
50
Units
kHz