dorsal/arxiv
View SchemaIonospheric (H-atom) Tomography: a Feasibility Study using GNSS Reflections
| Authors | Josep Marco, Giulio Ruffini, Leonardo Ruffini |
|---|---|
| Categories | |
| ArXiv ID | physics/0212087 |
| URL | https://arxiv.org/abs/physics/0212087 |
Abstract
In this report we analyze the feasibility of ionospheric monitoring using GNSS technology. The focus will be on the use of LEO GNSS data, exploiting GNSS Reflections, Navigation and Occultation TEC measurements. In order to attack this question, we have simulated GNSS ionospheric TEC data as it would be measured from a polar LEO (exploiting Navigation, Occultation and Reflection TEC data) and IGS ground stations, through the use of a climatic ionospheric model (we have explored both NeQuick and PIM). We have then developed a new tomographic approach inspired on the physics of the hydrogen atom, which has been compared to previous successful but somewhat awkward methods (using a voxel representation) and employed to retrieve the Electronic Density field from the simulated TEC data. These tomographic inversion results using simulated data demonstrate the significant impact of GNSS-R and GNSS-NO data: 3D ionospheric Electron Density fields are retrieved over the oceans quite accurately, even as, in the spirit of this initial study, the simulation and inversion approaches avoided intensive computation and sophisticated algorithmic elements (spatio-temporal smoothing). We conclude that GNSS-R data can contribute significantly to the GIOS (Global/GNSS Ionospheric Observation System).
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"abstract": "In this report we analyze the feasibility of ionospheric monitoring using\nGNSS technology. The focus will be on the use of LEO GNSS data, exploiting GNSS\nReflections, Navigation and Occultation TEC measurements. In order to attack\nthis question, we have simulated GNSS ionospheric TEC data as it would be\nmeasured from a polar LEO (exploiting Navigation, Occultation and Reflection\nTEC data) and IGS ground stations, through the use of a climatic ionospheric\nmodel (we have explored both NeQuick and PIM). We have then developed a new\ntomographic approach inspired on the physics of the hydrogen atom, which has\nbeen compared to previous successful but somewhat awkward methods (using a\nvoxel representation) and employed to retrieve the Electronic Density field\nfrom the simulated TEC data. These tomographic inversion results using\nsimulated data demonstrate the significant impact of GNSS-R and GNSS-NO data:\n3D ionospheric Electron Density fields are retrieved over the oceans quite\naccurately, even as, in the spirit of this initial study, the simulation and\ninversion approaches avoided intensive computation and sophisticated\nalgorithmic elements (spatio-temporal smoothing). We conclude that GNSS-R data\ncan contribute significantly to the GIOS (Global/GNSS Ionospheric Observation\nSystem).",
"arxiv_id": "physics/0212087",
"authors": [
"Josep Marco",
"Giulio Ruffini",
"Leonardo Ruffini"
],
"categories": [
"physics.ao-ph",
"physics.geo-ph"
],
"title": "Ionospheric (H-atom) Tomography: a Feasibility Study using GNSS Reflections",
"url": "https://arxiv.org/abs/physics/0212087"
},
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