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AWESOME receiver system broadband VLF data

(2020). AWESOME receiver system broadband VLF data [Data set]. Worldwide Archive of Low frequency Data and Observations (WALDO). https://doi.org/10.48322/fzcf-f191. Accessed on .

ResourceID
spase://ISWI/NumericalData/AWESOME/VLF/PT0.00001S

Description

The Very Low Frequency Atmospheric Weather Electromagnetic
System for Observation, Modeling, and Education, or VLF AWESOME,
completed in 2004 provides high sensitivity broadband radio
measurements of natural lightning emissions, transmitting
beacons, and radio emissions from the near-Earth space
environment over the frequency band 0.8-50 kHz.

Most of the data is collected on two air-core loop
antennas, oriented orthogonal, to collect the two horizontal
components of the magnetic field. The north-south, or N/S antenna
is sensitive mostly to waves arriving from the north of from the
south direction, meaning it picks up the magnetic field component
in the east-west direction. The other antenna is the east-west
antenna, which is the opposite.

Broadband data contain direct samples of the receiver output, usually
at 100 kHz or 1 MHz sampling frequency. These files essentially
contain everything that the receiver records, entirely
uncompressed. The files are very large, for instance just one
minute of VLF data will produce a ~12 MB file for each antenna
channel. This adds up to 35 GB per day if you have two antenna
channels.

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Details

Version:2.3.1

NumericalData

ResourceID
spase://ISWI/NumericalData/AWESOME/VLF/PT0.00001S
ResourceHeader
ResourceName
AWESOME receiver system broadband VLF data
DOI
https://doi.org/10.48322/fzcf-f191
ReleaseDate
2021-03-02 17:39:48Z
Description

The Very Low Frequency Atmospheric Weather Electromagnetic
System for Observation, Modeling, and Education, or VLF AWESOME,
completed in 2004 provides high sensitivity broadband radio
measurements of natural lightning emissions, transmitting
beacons, and radio emissions from the near-Earth space
environment over the frequency band 0.8-50 kHz.

Most of the data is collected on two air-core loop
antennas, oriented orthogonal, to collect the two horizontal
components of the magnetic field. The north-south, or N/S antenna
is sensitive mostly to waves arriving from the north of from the
south direction, meaning it picks up the magnetic field component
in the east-west direction. The other antenna is the east-west
antenna, which is the opposite.

Broadband data contain direct samples of the receiver output, usually
at 100 kHz or 1 MHz sampling frequency. These files essentially
contain everything that the receiver records, entirely
uncompressed. The files are very large, for instance just one
minute of VLF data will produce a ~12 MB file for each antenna
channel. This adds up to 35 GB per day if you have two antenna
channels.

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
Umran S. Inan, Morris B. Cohen, Mark A. Golkowski
PublicationDate
2020-01-01 00:00:00Z
PublishedBy
Worldwide Archive of Low frequency Data and Observations (WALDO)
Contacts
RolePerson
1.ArchiveSpecialistspase://SMWG/Person/Morris.Cohen
InformationURL
Name
Worldwide Archive of Low-Frequency Data and Observations (WALDO)
URL
PriorIDs
spase://GBO/NumericalData/AWESOME/VLF/PT0.00001S
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
1986-05-01 11:11:14
RelativeStopDate
-P3Y
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, usually 100 kHz or 1 MHz.

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