Statistics
Scientific paper
Dec 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006agufmsa52a..06c&link_type=abstract
American Geophysical Union, Fall Meeting 2006, abstract #SA52A-06
Statistics
2415 Equatorial Ionosphere, 2439 Ionospheric Irregularities, 2447 Modeling And Forecasting
Scientific paper
Recent improvements to the Scintillation Network Decision Aid (SCINDA) model offer enhanced regional specifications of the scintillation environment. Through its network of more than a dozen ground-based scintillation receivers in the equatorial region, SCINDA provides global depictions of scintillation activity in real- time. The number of stations is expected to increase to 20 or more by the end of 2007, further expanding the coverage region and resolution of the current sensor network. A significant upgrade to the version of SCINDA currently used in operational support of the SATCOM community offers the ability to provide output at user selectable frequencies. Through the use of decorrelation time statistics, when available, the new multi-frequency scintillation simulation tool allows for accurate scaling of ground-based measurements to user-selectable frequencies. Results from a validation study of earlier version of SCINDA have led to additional enhancements including the implementation of an improved scintillation decay algorithm and the application of gridded confidence levels which offer insight into SCINDA's ability to model and propagate detected scintillation structures and highlight inherent limitations on the multi-frequency scintillation simulation tool. On-going enhancements include the development of a real-time data-based product in support of RADAR operators where real-time observed interference may be displayed within the fan of operation at user-selectable frequencies. Additional plans include the incorporation of ground-based scintillation observations from CERTO tri-band beacons on board the COSMIC (FORMOSAT-3) and C/NOFS satellites as well as making use of in- situ plasma density measurements by C/NOFS in conjunction with a phase-screen propagation model to provide nearly global coverage in the equatorial region.
Carrano Charles S.
Caton R. G.
Groves Keith M.
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