årstidsvariasjonene
Årstidsvariasjonene, also known as seasonal variations, refers to the predictable patterns of change that occur in the natural world and human activities throughout the year. These variations are primarily driven by the Earth's axial tilt and its orbit around the sun, which results in differing amounts of solar radiation received by different parts of the planet over the course of a year. This leads to distinct seasons, characterized by changes in temperature, daylight hours, and weather patterns.
In temperate and polar regions, these variations are most pronounced, manifesting as spring, summer, autumn, and
These seasonal changes have profound effects on ecosystems. Plants undergo cycles of growth, reproduction, and dormancy.