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http://nopr.niscpr.res.in/handle/123456789/17093| Title: | Comparison of observed hmF2 and IRI 2007 model with M(3000)F2 estimation of hmF2 during high solar activity for an equatorial station |
| Authors: | Ehinlafa, O E Adeniyi, J O |
| Keywords: | F2 layer peak height;F2 region electron density;High solar activity |
| Issue Date: | Apr-2013 |
| Publisher: | NISCAIR-CSIR, India |
| PACS No.: | 94.20.dj; 94.20.dt; 92.60.hv; 96.60.Q- |
| Abstract: | In this paper, the ways of improving the equatorial F2 layer peak heights estimated from M(3000)F2 ionosonde data measured using the Ionospheric Prediction Service (IPS-42) sounder at Ouagadougou, Burkina Faso (geog lat +12.4°N, geog long +1.5°W, magnetic dip +5.9°N) during high solar activity year (1991) was investigated. For this purpose, the observed height of maximum electron density of F2 region (hmF2obs), deduced using an algorithm from scaled virtual heights of quiet day ionograms; and the predicted hmF2 values, which is given by the IRI 2007 model (hmF2IRI2007) have been compared with the ionosonde measured M(3000)F2 estimation of the hmF2 values (hmF2est), respectively. A strong correlation with its coefficients R2 for all the seasons ranging 0.562 - 0.857 for hmF2obs values, and ranging 0.876 - 0.968 for the hmF2IRI2007 values was observed in the linear regressions of hmF2obs and hmF2IRI2007 with M(3000)F2 inverse. During the nighttime, estimated hmF2 (hmF2est) was found to be positively correlated with the hmF2obs values by the post-sunset peak representation, which is not represented by the hmF2IRI2007 values. Also, the validity of the hmF2est values has been investigated by finding the percentage deviations when compared with the hmF2obs and hmF2IRI2007. |
| Page(s): | 82-88 |
| ISSN: | 0975-105X (Online); 0367-8393 (Print) |
| Appears in Collections: | IJRSP Vol.42(2) [April 2013] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJRSP 42(2) 82-88.pdf | 425.36 kB | Adobe PDF | View/Open |
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