Statistical modeling of ionospheric foF2 over Wuhan
نویسندگان
چکیده
منابع مشابه
MODELING, PREDICTION AND FORECAST OF THE IONOSPHERIC CRITICAL FREQUENCY foF2
The temporal variations of the ionospheric critical frequency foF2 is a typical example of a time series in which deterministic variations at various time scales and nonstationary stochastic variations are involved. In a series of journal and conference papers we have obtained various modelling, prediction and forecast algorithms for foF2 variations over Europe, based on data from about 15 iono...
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[1] This study explores the saturation effects in the ionospheric foF2 due to sunspot number R, solar radio noise (10.7 cm) flux F10.7, and solar EUV fluxes. To locate the R, F10.7, or EUV value at which the foF2 values are saturated, a two-segmented regression model is built based on the data of the strictly rise period of the 21st solar cycle recorded by eight ionosonde stations scattering ro...
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Ionospheric slab thickness is defined as the ratio of TEC to maximum electron density of the F-region (NmF2), proportional to the square of the F2-layer critical frequency (foF2). It is an important parameter in that it is linearly correlated with scale height of the ionosphere, which is related to electron density profile. It also reflects variation of the neutral temperature. Therefore, ionos...
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[1] Empirical evidence of the preearthquake ionospheric anomalies (PEIAs) is reported by statistically investigating the relationship between variations of the plasma frequency at the ionospheric F2 peak foF2 and 184 earthquakes with magnitude M 5.0 during 1994– 1999 in the Taiwan area. The PEIA, defined as the abnormal decrease more than about 25% in the ionospheric foF2 during the afternoon p...
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1 Institute of Statistics, National Central University, Chung-Li, Taiwan, ROC 2 Institute of Space Science, National Central University, Chung-Li, Taiwan, ROC 3 Center for Remote Sensing and Space Researches, National Central University, Chung-Li, Taiwan, ROC 4 Institute of Geophysics, National Central University, Chung-Li, Taiwan, ROC * Corresponding author address: Dr. Yuh-Ing Chen, Institute...
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ژورنال
عنوان ژورنال: Radio Science
سال: 2004
ISSN: 0048-6604
DOI: 10.1029/2003rs003005