Sentence examples for minimum solar activity from inspiring English sources
After a minimum, solar activity usually takes off quickly, but instead the Sun returned to slumber.
This is certainly a positive effect of the minimum solar activity over the period studied here.
In the present study we keep the solar wind conditions and the solar activity constant: we use an average solar wind speed and minimum solar activity.
Solar activity is the primary determinant of TEC during periods with high solar activity, whereas periodic factors primarily contribute to TEC during periods with minimum solar activity.
The daylight-hour data indicates that when solar activity is at a maximum, the daylight hours also increase, while during times of minimum solar activity, the daylight hours decrease.
Campbell and Matsushita (1982) showed that the semi-annual Sq variations are distinct only during solar maximum periods by comparing external equivalent currents during maximum and minimum solar activity.
During the past 1000 years, of particular interest were the Medieval Warming Period (high solar activity), the Maunder Minimum, (minimal solar activity) and the sharp multi-decadal increase in solar maxima during the first half of the 20th Century.
Following its highly successful survey of the latitudinal structure of the heliosphere under near-minimum solar activity conditions, the Ulysses space-probe embarked in 1998 on a second out-of-ecliptic orbit of the Sun.
An inter-minima comparison reveals that from an ionospheric point of view the last minimum of solar activity (minimum 23/24) was peculiar, with values of NmF2 lower than those recorded during the previous minima for all the stations and all the hours of the day.
Different statistical analysis were performed taking into account foEs observations near the periods of minimum and maximum solar activity.
The main focuses of the paper is to see the diurnal, seasonal and latitudinal variations of electron and ion temperatures during periods of minimum to maximum solar activity.
