1. Daylight Duration:
- The duration of daylight increases. This is because the path of the sun in the sky is higher, resulting in longer periods of sunlight during the day.
2. Sun Intensity:
- The intensity of sunlight generally decreases as the sun's altitude increases. This is because the sunlight has to travel through a thicker layer of the Earth's atmosphere, which scatters and absorbs some of the light. However, the intensity can still be high, especially at higher altitudes.
3. Temperature:
- The temperature tends to increase as the sun's altitude increases. This is because the sun's rays are more direct and concentrated, leading to higher temperatures on the Earth's surface.
4. Shadow Length:
- The length of shadows cast by objects decreases as the sun's altitude increases. This is because the sun's rays are striking the objects at a higher angle, resulting in shorter shadows.
5. Color of the Sky:
- The color of the sky appears to change as the sun's altitude varies. At sunrise and sunset, when the sun is near the horizon, the sky often takes on a reddish or orange hue due to the scattering of sunlight by atmospheric particles. As the sun rises higher in the sky, the sky appears blue due to Rayleigh scattering, which is the dominant scattering process for shorter wavelengths like blue light.
6. UV Radiation:
- The intensity of ultraviolet (UV) radiation increases as the sun's altitude increases. This is because there is less atmosphere to absorb UV rays at higher altitudes. Therefore, it's important to protect yourself from UV radiation by using sunscreen, sunglasses, and other protective measures, especially during the hours when the sun is high in the sky.