Seasons of the year in the annual cycle of nature’s development. In the temperate climate of the Northern Hemisphere, there are 4 seasons. These are: spring, summer, autumn and winter. These are four equal periods into which the annual cycle of sunlight reaching the Earth and, accordingly, weather conditions is conventionally divided.
Seasons of the year: the change.
It is caused by its movement around the Sun. Also by the tilt of the Earth’s axis to the plane of the ecliptic at an angle of 66.5°. The population of temperate latitudes is accustomed to certain rhythmic changes in the surrounding nature. They always repeat from year to year and are called seasons. Everyone is familiar with the natural signs of spring, summer, autumn and winter. They are easy to distinguish in the environment, in photographs or drawings. The seasons influence economic activities, the planning of work and leisure time, daily life, and health.
Our planet constantly revolves around the Sun
Our planet constantly revolves around the Sun, moving along an orbit that resembles an ellipse. This means that throughout the year, the Earth both approaches and moves away from the star. The Sun is a source of heat for us. However, it would be a mistake to think that winter occurs when we are farthest from the Sun. The change of seasons depends not only on orbital movement but also on the Sun. This alters the angle at which sunlight strikes different areas of the planet. Where the angle is greater, the surface warms up better, and where it is smaller, colder weather prevails.
This is why it is warmer in the Northern Hemisphere during the summer. In the Southern Hemisphere during the winter. From June to August, the Northern Hemisphere is tilted towards the Sun. Days there become longer, and nights shorter. In the south, it is colder during this time. From December to February, the Southern Hemisphere warms up better. In March and September, both parts of the planet receive an equal amount of light and heat. This is when spring and autumn occur for us, respectively.
During the winter season, snow reflects up to 90% of sunlight from the Earth’s surface. This prevents the ground from warming up.