Sentence examples for irregularity occurrence from inspiring English sources

Tsunoda (1985) shows that the ionospheric irregularity occurrence is a maximum when sunsets in the conjugate E-region are simultaneous.

With the use of low order polynomial and harmonic functions, the second component describes the influence of solar cycle and seasons on irregularity occurrence.

The bar chart shows the number of days in a month for the OLR occurrence, and the red dotted line shows the irregularity occurrence rate.

The total time duration of the irregularity occurrence was then divided by the satellite transit time to obtain the occurrence probability in that square area.

Therefore, we study the linear regression between the monthly total irregularity occurrence rates and the number of OLR observations between ±15° of the dip equator.

Ground based ionograms (followed by radio wave scintillation and satellite in situ measurements) provide the most abundant data base for generating equatorial spread F (ESF) irregularity occurrence statistics.

Thus, the observed s/l distributions of irregularity occurrences exhibit a high occurrence of irregularities during a season at a longitude sector for a so-called 'ESF season' versus 'non-ESF season' in a different season of fewer irregularity occurrences.

The results are shown in Figure 3. Figure 3 Monthly/latitudinal distributions of irregularity occurrences within ±15° in dip latitudes.

The global s/l distributions of irregularity occurrences are shown in the upper panels for each season in Figure 1.

Together with the favorable post-sunset ionospheric condition, the global m/l distributions of irregularity occurrences could be adequately explained.

Plots of the monthly/latitudinal (m/l) distributions of irregularity occurrences versus the OLR occurrences within ±25° in geographic latitudes in the seven longitude sectors.