We studied the daily and monthly variations in the scintillation index S4 during this year, which showed that scintillation was a post-sunset phenomenon on equinoctial days, with high activity during the March equinox.
In general, the equatorial plasma bubbles have been regarded as the typical post-sunset phenomena.
These poems are concerned largely with evoking memories and dreams and with the subjective identification of the poet with natural phenomena, especially the sunset.
Amid peoples' busy schedules, the natural phenomenon of daily sunsets and sunrises are often overlooked and forgotten.
By the time we reboarded the boat it was sunset and now a bizarre natural phenomenon occurred: millions of flying insects emerged.
A rare optical phenomenon may occur shortly after sunset or before sunrise, known as a green flash.
During this time it is a so-called Harvest Moon – farmers once used this phenomenon to harvest their crops after sunset.
Ms. Koefoed, a photographer (the other two are painters), concentrates on young women in everyday surroundings -- talking, working, playing, cooking, shopping, sharing confidences, performing bodily functions, romping outdoors with dogs and horses, brooding over sunsets and other natural phenomena, all without men.
These phenomena describe the ionospheric sunrise enhancement and sunset enhancement, respectively (Schunk and Nagy 2009; Liu et al. 2004).
The Zodiacal Light, that misty diffuse cone of light seen in the West after Sunset and the East before Sunrise, is a beautiful and intriguing phenomenon.
