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
InformationURL
Name
Worldwide Archive of Low-Frequency Data and Observations (WALDO)
URL
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.
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