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Table 2.
The occurrence percentage of the various types (l, c and h) of Es is given for each hour from 10:00 LT to 14:00 LT, for the whole data set from January 1976 to December 2009.
| Hour (LT) | Total ionograms | Ionograms with Es | Es type “l” | Es type “c” | Es type “h” |
|---|---|---|---|---|---|
| 10:00 | 11,650 | 9142 | 1830 (~20%) | 6411 (~70%) | 901 (~10%) |
| 11:00 | 11,757 | 8908 | 2277 (~26%) | 5763 (~65%) | 868 (~9%) |
| 12:00 | 11,915 | 8364 | 2683 (~32%) | 4785 (~57%) | 896 (~11%) |
| 13:00 | 11,967 | 7813 | 2797 (~36%) | 3916 (~50%) | 1100 (~14%) |
| 14:00 | 11,959 | 7515 | 2684 (~36%) | 3454 (~46%) | 1377 (~18%) |
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