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Ionospheric Scintillation and TEC monitoring and modelling (ISACCO)
Call year: 2015
Status: active
IADC_id: 6
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The principal scope of the project ISACCO is to measure the ionospheric Total Electron Content (TEC) and to monitor the ionospheric scintillations by suitably modified GPS receivers – GISTM (GPS Ionospheric Scintillation and TEC Monitor). These experimental observations are necessary to develop models and algorithms to mitigate the negative impact of the disturbed ionosphere on Global Navigation Satellite Systems based technology. rnThe project ISACCO was born in 2003 when the first GISTM receiver was installed at Ny-Ålesund in Dirigibile Italia Station. In 2004, a second receiver was located about 1 km far from the first one and a third receiver was set up in Longyearbyen, 125 km from the other two. In January 2006, another GISTM was installed at the Italian Antarctic station ‘‘Mario Zucchelli’’, Terra Nova Bay (74.7S, 164.1E). From January 2008 up to now three receivers were deployed at the Italian-French Antarctic station of Concordia at Dome C (75.0S, 123.0E), on the Antarctic plateau.rnCurrently the GISTM bi-polar network consists of NovAtel OEM4 dual-frequency receivers with special firmware, comprises the major component of a GPS signal monitor, specifically configured to measure amplitude and phase scintillation from the L1 frequency GPS signals, and ionospheric TEC (Total Electron Content) from the L1 and L2 frequency GPS signals. Software is included in the GISTM to automatically compute and log the amplitude scintillation index, S4, and phase scintillation index, ?, computed over 1, 3, 10, 30 and 60 s. In addition, TEC and TEC phase are each logged every 15 s. Phase and amplitude data, either in raw form or detrended (to remove systematic variations), are also logged at 50 Hz. rn
National/International Cooperation:
GRAPE SCAR EXPERT GROUP (www.grape.scar.org), Participant Countries are: South Africa, Brazil, Canada, UK, Poland, Argentina, Japan, etc....
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