IMAGING OF THE IONOSPHERE BASED ON LOW-ORBITAL AND HIGH-ORBITAL RADIO TOMOGRAPHIC SYSTEMS
Currently available low orbital (LO) satellite navigational systems (like the Russian "Tsykada " satellites and American "Transit "- Navy Navigation Satellite System) having nearly circular orbits at 1000-1150 km altitudes, and ground receiving chains provide a possibility to yie...
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Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.579.467 http://www.ursi.org/Proceedings/ProcGA05/pdf/G01a.3(01033).pdf |
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description | Currently available low orbital (LO) satellite navigational systems (like the Russian "Tsykada " satellites and American "Transit "- Navy Navigation Satellite System) having nearly circular orbits at 1000-1150 km altitudes, and ground receiving chains provide a possibility to yield a series of tomographic data along a set of rays and to get 2D RT images of the ionosphere over a region 1-3 thousand kilometers as large within 10-15 minutes. The main results obtained in ionospheric LO RT are presented in a series of monograph and reviews [1-3]. In recent years receiving networks of high-orbital (HO) navigational systems such as GPS/GLONASS are actively developing. Ionospheric RT with HO systems is considered; results of HO RT are compared with those yielded by LO RT. RT BASED ON LOW-ORBITAL SATELLITES A series of RT experiments has been already and are being currently carried out in different regions of the world: in Europe, America and Asia [1-8]. RT images of the ionosphere along the path Moscow-Barentsburg (Svalbard) and over Alaska region during periods of geomagnetic storms in October 2003 (Fig.1) and in July 2004 (Fig.2) were obtained and analyzed. Geomagnetic storm of 29-31 October 2003 ranks as an extremely strong event (planetary index of geomagnetic activity reached its maximum Kp=9). As an example, shown in Fig.1a is ionospheric cross-section between Moscow and Barentsburg reconstructed from the data of 30.10.2003, 19:25UT (31.11.2003, 22:25LT). As seen from the reconstruction, a complicated structure with wavelike disturbances (with a maximum of 1.0*106 el/cm3 which |
format | Text |
genre | Barentsburg Svalbard Alaska |
genre_facet | Barentsburg Svalbard Alaska |
geographic | Barentsburg Svalbard |
geographic_facet | Barentsburg Svalbard |
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institution | Open Polar |
language | English |
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spelling | ftciteseerx:oai:CiteSeerX.psu:10.1.1.579.467 2025-01-16T21:12:15+00:00 IMAGING OF THE IONOSPHERE BASED ON LOW-ORBITAL AND HIGH-ORBITAL RADIO TOMOGRAPHIC SYSTEMS The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.579.467 http://www.ursi.org/Proceedings/ProcGA05/pdf/G01a.3(01033).pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.579.467 http://www.ursi.org/Proceedings/ProcGA05/pdf/G01a.3(01033).pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.ursi.org/Proceedings/ProcGA05/pdf/G01a.3(01033).pdf text ftciteseerx 2016-01-08T12:54:43Z Currently available low orbital (LO) satellite navigational systems (like the Russian "Tsykada " satellites and American "Transit "- Navy Navigation Satellite System) having nearly circular orbits at 1000-1150 km altitudes, and ground receiving chains provide a possibility to yield a series of tomographic data along a set of rays and to get 2D RT images of the ionosphere over a region 1-3 thousand kilometers as large within 10-15 minutes. The main results obtained in ionospheric LO RT are presented in a series of monograph and reviews [1-3]. In recent years receiving networks of high-orbital (HO) navigational systems such as GPS/GLONASS are actively developing. Ionospheric RT with HO systems is considered; results of HO RT are compared with those yielded by LO RT. RT BASED ON LOW-ORBITAL SATELLITES A series of RT experiments has been already and are being currently carried out in different regions of the world: in Europe, America and Asia [1-8]. RT images of the ionosphere along the path Moscow-Barentsburg (Svalbard) and over Alaska region during periods of geomagnetic storms in October 2003 (Fig.1) and in July 2004 (Fig.2) were obtained and analyzed. Geomagnetic storm of 29-31 October 2003 ranks as an extremely strong event (planetary index of geomagnetic activity reached its maximum Kp=9). As an example, shown in Fig.1a is ionospheric cross-section between Moscow and Barentsburg reconstructed from the data of 30.10.2003, 19:25UT (31.11.2003, 22:25LT). As seen from the reconstruction, a complicated structure with wavelike disturbances (with a maximum of 1.0*106 el/cm3 which Text Barentsburg Svalbard Alaska Unknown Barentsburg ENVELOPE(14.212,14.212,78.064,78.064) Svalbard |
spellingShingle | IMAGING OF THE IONOSPHERE BASED ON LOW-ORBITAL AND HIGH-ORBITAL RADIO TOMOGRAPHIC SYSTEMS |
title | IMAGING OF THE IONOSPHERE BASED ON LOW-ORBITAL AND HIGH-ORBITAL RADIO TOMOGRAPHIC SYSTEMS |
title_full | IMAGING OF THE IONOSPHERE BASED ON LOW-ORBITAL AND HIGH-ORBITAL RADIO TOMOGRAPHIC SYSTEMS |
title_fullStr | IMAGING OF THE IONOSPHERE BASED ON LOW-ORBITAL AND HIGH-ORBITAL RADIO TOMOGRAPHIC SYSTEMS |
title_full_unstemmed | IMAGING OF THE IONOSPHERE BASED ON LOW-ORBITAL AND HIGH-ORBITAL RADIO TOMOGRAPHIC SYSTEMS |
title_short | IMAGING OF THE IONOSPHERE BASED ON LOW-ORBITAL AND HIGH-ORBITAL RADIO TOMOGRAPHIC SYSTEMS |
title_sort | imaging of the ionosphere based on low-orbital and high-orbital radio tomographic systems |
url | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.579.467 http://www.ursi.org/Proceedings/ProcGA05/pdf/G01a.3(01033).pdf |