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Data Access

GIRO Doppler Skymap Plots

ResourceID
spase://GBO/DisplayData/GIRO/SKYMAP/PT15M

Description

Collection of GIRO Doppler skymap images at University of Massachusetts Lowell, covering selected ionosonde stations and periods of time from 1993-07-20 to current time, including 28 real-time feeds. Total number of GIRO locations represented is 50 as of February 14, 2012. Access to images is arranged via a webpage containing a browsable data availability table. GIRO skymaps are visualized by plotting received echoes in the polar coordinate system using echo zenith and azimuth information. Color scale is used to represent Doppler Velocity of the signal reflection area in the ionosphere. Additionally, observed echoes on the skymap are used to derived zenith and azimuth of the ionospheric tilt, as well as vertical and horizontal components of the bulk ionospheric motion across the sounder location.

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Details

Version:2.5.0

DisplayData

ResourceID
spase://GBO/DisplayData/GIRO/SKYMAP/PT15M
ResourceHeader
ResourceName
GIRO Doppler Skymap Plots
ReleaseDate
2019-05-05 12:34:56Z
RevisionHistory
RevisionEvent
ReleaseDate
2023-07-28 13:13:33
Note
Edited Acknowledgement, AccessURL, InformationURL, added Contact, SpatialCoverage and updated SPASE version. LNG
Description

Collection of GIRO Doppler skymap images at University of Massachusetts Lowell, covering selected ionosonde stations and periods of time from 1993-07-20 to current time, including 28 real-time feeds. Total number of GIRO locations represented is 50 as of February 14, 2012. Access to images is arranged via a webpage containing a browsable data availability table. GIRO skymaps are visualized by plotting received echoes in the polar coordinate system using echo zenith and azimuth information. Color scale is used to represent Doppler Velocity of the signal reflection area in the ionosphere. Additionally, observed echoes on the skymap are used to derived zenith and azimuth of the ionospheric tilt, as well as vertical and horizontal components of the bulk ionospheric motion across the sounder location.

Acknowledgement
Heavy investments of time, effort, expertise, and funds continue to be made to produce, collect, quality control, interpret, and archive ionosonde data. It is therefore important that the data suppliers and Lowell GIRO Data Center (LGDC) are appropriately acknowledged in scientific publications that include analysis of data obtained from LGDC servers. Please read Rules of the Road https://giro.uml.edu/didbase/RulesOfTheRoad.html for license information and refer to Acknowledgements List https://giro.uml.edu/didbase/acknowledgements.htm to use GIRO data per license requirements.
Contacts
RolePersonStartDateStopDateNote
1.PrincipalInvestigatorspase://SMWG/Person/Bodo.W.Reinisch
2.DataProducer
TechnicalContact		spase://SMWG/Person/Ivan.A.Galkin
3.MetadataContactspase://SMWG/Person/Leonard.N.Garcia
InformationURL
Name
GIRO (Global Ionospheric Radio Observatory) Home Page
URL
https://giro.uml.edu
Description

Access to real-time data and software tools

Language
en
Association
AssociationID
spase://SMWG/Observatory/GIRO
AssociationType
ObservedBy
PriorIDs
spase://VWO/DisplayData/GIRO/SKYMAP.PT15M
spase://VSPO/DisplayData/GIRO/SKYMAP/PT15M
AccessInformation
RepositoryID
spase://SMWG/Repository/UML/DriftBase
Availability
Online
AccessRights
Open
AccessURL
Name
GIRO DriftBase Skymap Browser
URL
https://giro.uml.edu/driftbase/
Description

Repository of GIRO skymap images at University of Massachusetts Lowell, containing browsable interface to retrieve individual images.

Language
en
Format
PNG
Encoding
None
DataExtent
Quantity
700000000
Units
byte
Per
PT15M
Acknowledgement
Heavy investments of time, effort, expertise, and funds continue to be made to produce, collect, quality control, interpret, and archive ionosonde data. It is therefore important that the data suppliers and Lowell GIRO Data Center (LGDC) are appropriately acknowledged in scientific publications that include analysis of data obtained from LGDC servers. Please read Rules of the Road https://giro.uml.edu/didbase/RulesOfTheRoad.html for license information and refer to Acknowledgements List https://giro.uml.edu/didbase/acknowledgements.htm to use GIRO data per license requirements.
ProcessingLevel
Calibrated
ProviderProcessingLevel
Level 2, Doppler skymap data processed to calculate ionospheric tilt and bulk plasma drift velocity. All images produced by ShowSkymap servlet from raw and processed data.
InstrumentIDs
spase://SMWG/Instrument/GIRO/Ionosonde
MeasurementType
Waves.Active
TemporalDescription
TimeSpan
StartDate
1987-01-01 00:00:05Z
RelativeStopDate
P 5M
Note
Cadence of skymap measurements may vary depending on the scheduling requirements at GIRO sites; 15 minutes is nominal cadence
Cadence
PT15M
Exposure
PT1M
SpectralRange
RadioFrequency
DisplayCadence
PT15M
ObservedRegion
Earth.NearSurface.Ionosphere
SpatialCoverage
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
GEO
Keywords
Skymap
Echo
Bulk Plasma Velocity
Ionospheric Tilt
Parameter #1
Name
Signal Strength
Description

Received signal strength, expressed as AC Electric Field in dB units relative to digitizer 1.

Cadence
PT15M
Units
dB
Wave
WaveType
PlasmaWaves
Qualifier
Magnitude
Qualifier
Pseudo
WaveQuantity
ACElectricField
FrequencyRange
SpectralRange
RadioFrequency
Low
500
High
30000
Units
kHz