Siple Experiment broadband VLF data

https://doi.org/10.48322/44y4-4j02

2021-06-14 22:37:42Z

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

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.

MATLAB_4

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.

start_year

start_month

start_day

start_hour

start_minute

start_second

latitude

longitude

altitude

Fs

Sampling rate of the data, 25 kHz.

PT0.000001S

PT0.00001S

gps_quality

adc_channel_number

adc_sn

adc_type

antenna_bearings

antenna_description

cal_factor

computer_sn

gps_sn

hardware_description

is_broadband

station_description

station_name

VERSION

data