Near real time VTEC estimation using La Plata Ionospheric ...

1 September 2009.Buenos Aires, Argentina.

IAG Scientific Assembly: Geodesy ForPlanet Earth.

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M. Gende1, C. Brunini1, C. Valladares2

Universidad Nacional de La Plata, Argentina1

Boston College, USA 2

Near real time VTEC estimationNear real time VTEC estimationusing La Platausing La Plata IonosphericIonospheric ModelModel



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OutlookOutlook

LISN ProjectSIRGAS-IONLPIM modelNear real time dataConclusions and future work



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The actual state of the ArgentineanThe actual state of the Argentineancomponent of the LISN projectcomponent of the LISN project



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LISNLISN

Low-latitude Ionospheric Sensor Network

Distributed multi-instrumental observatory

Monitoring and predicting the equatorialionosphere



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InstrumentsInstruments

70 GPS receivers (modified firmware)

5 flux gate magnetometers

5 ionospheric sensors



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GPSGPS



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GPSGPS



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MagnetometerMagnetometer



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IonosphericIonospheric sensorsensor



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SIRGASSIRGAS--IONION



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Stations for regional mapsStations for regional maps



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http://http://cplat.fcaglp.unlp.edu.ar/iono/uscplat.fcaglp.unlp.edu.ar/iono/us/index.shtml/index.shtml

http://cplat.fcaglp.unlp.edu.ar/iono/us

http://cplat.fcaglp.unlp.edu.ar/iono/us



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LPIM modelLPIM model

Pre-processing

Calibration

Interpolation

4 STEC + B + B + N +srL

4 ( ).VTEC + +arcL f z



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CorrientesCorrientes



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CorrientesCorrientes



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ConclusionsConclusionsA set of instruments were installed in theframe of the LISN project

Part of LPIM routines were used tocompute VTEC with a delay of 5 minutes

A prototype platform for future services



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Future WorksFuture Works

Modify LPIM to accept NTRIP data formatas input

Include more stations so a regionalinterpolation can be done



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Near real time VTEC estimation using La Plata Ionospheric ...

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