Weather in high latitudes

1. The intensity of solar radiation decreases from low latitude to the poles;

2. The solar radiation in summer is stronger than that in winter;

3. The plateau is stronger than the plain, and the higher the altitude (the thinner the clouds), the stronger the solar radiation;

The clearer the weather (fewer/thinner clouds), the stronger the solar radiation.

Influencing factors of solar radiation intensity;

1. Latitude position: low latitude makes the high angle of the sun at noon large, and the distance of solar radiation passing through the atmosphere is short, so it is less weakened by the atmosphere, so the solar radiation reaching the ground is strong; On the contrary, it is weak. This is also one of the reasons why solar radiation decreases from low latitude to two poles.

2. Sunshine length: long sunshine time leads to more solar radiation, while short sunshine time leads to less solar radiation. In the summer half year, the days at high latitudes are long, which makes up for the energy lost at low solar altitude.

3. Altitude: the altitude is high, the air is thin, and the atmosphere has a weak weakening effect on solar radiation, so the solar radiation reaching the ground is strong; On the contrary, it is weak. This is the main reason why the Qinghai-Tibet Plateau has become the region with the strongest solar radiation in China.

4. Weather conditions: On sunny days, due to the few and thin clouds, the atmosphere has a weak weakening effect on solar radiation, and the solar radiation reaching the ground is strong; In rainy weather, due to the thick and many clouds, the atmosphere has a strong weakening effect on solar radiation, and the solar radiation reaching the ground is weak.