The main reasons for the large annual solar radiation in Golmud city

The main reasons for the large annual solar radiation in Golmud City are low latitude and high sun height. Located in the Qinghai-Tibet Plateau, with high altitude and thin air; Less precipitation, more sunny days, less atmospheric weakening and less solar radiation; The direct solar radiation to the ground is very strong.

First of all, the concept of solar radiation

Refers to the energy transmitted by the sun in the form of electromagnetic waves, electromagnetic waves and particle streams emitted by the sun into space. The energy transmitted by solar radiation is called solar radiation energy.

Second, the influencing factors

1. Latitude position: Low latitude means that the sun angle is high at noon, the distance of solar radiation passing through the atmosphere is short, and 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. Weather conditions: On sunny days, due to 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.

3. Altitude: the altitude is high, the air is thin, the atmosphere has a weak weakening effect on solar radiation, and 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. Sunshine length: long sunshine time, strong solar radiation, short sunshine time and weak 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.

Influence of solar radiation on human life

1, generating fuel

Fossil fuels such as coal, oil and natural gas, as the main energy sources of industrial production, are solar energy accumulated after biological fixation in geological history.

Step 2 provide energy

Solar radiation energy is the main energy source of solar cookers, solar water heaters and solar power stations used in our daily life and production. Most of the water used in hydropower stations is converted by solar energy, and the bioenergy that human beings cannot live without is also converted by solar energy.

3. Provide heat for agriculture.

Greenhouse agriculture is developed to make full use of the light and heat resources of the sun.