How did the rainstorm come about? What are the main factors leading to heavy rain?

How did the rainstorm come about? What are the main factors leading to heavy rain? What about the rainstorm? The reasons for the rainstorm caused by the rising water vapor on the hillside and other terrain are very complicated, but there are two main conditions for the rainstorm: one is the continuous evaporation of water supply; The other is forced to lift the hillside and other terrain, making its water vapor temperature lower and easier to condense. Clouds can't bear the weight, so it is rain. On the other hand, because the water supply is sufficient, the transverse tropical high pressure is always maintained. The air temperature in the air docking area is always maintained, and the rising time of water vapor is continuous, so the rainfall is also continuous, and the result is easy to rain and flood. Disaster. Belonging to a special year, there is such a high-intensity rainstorm and flood in the south. However, from this country, this kind of weather disaster is actually different in area, intensity and scope every year, which is irregular.

Atmosphere, if the meteorological activities are very routine, then the weather forecast will become very easy, and everyone will not complain that the weather forecast is inaccurate. In fact, with the development of meteorological technology, in addition to the development of the platform, our weather forecast for the next two or three days is very accurate. If it rains, it may be a little late, or a little bit on the side, which is inevitable, but judging from the whole, if it rains, then nine times out of ten, in this case, you still have to take an umbrella. When Wande predicted that there would be heavy rain in Beijing, the result was still not over, and it was still raining. Therefore, the specific time point of prediction is not necessarily accurate, but within the scope of one day, the whole is more accurate.

The technology of our country has developed rapidly, and several meteorological satellites have been launched. If you want to monitor typhoons or other meteorological activities, satellite cloud pictures are very accurate, as well as remote sensing and radar. For example, someone will come, someone will learn to look at radar puzzles and see the movement of clouds. It has a possible speed and intensity, and then you can judge how far it is. Nowadays, the meteorological service still lacks everyone's ability, but once this information is shared, everyone can make difficult judgments according to their own needs. Is there a long-term pattern of rain? If so, why do you always encounter "once in a hundred years" and "once in a thousand years" natural disasters?

These data series are not enough to support "100 year" and "one of the Millennium", which may be unrealistic and flawed. Generally speaking, meteorological stations and hydrological stations have a history of more than 100 years, and their data series are indeed reliable and convincing science.