What is the concept of rainfall up to 50mm?

Rainfall refers to the height of rainfall from the sky to the ground in millimeters per unit of time when the rainwater falling from the sky to the ground has not evaporated or leaked. Professionally, it is measured directly with a rain measuring cup. For example, the rainfall in 24 hours is 58 mm, which means that the rainwater falling from the sky to the ground in 24 hours is 58 mm in height when it is not lost, evaporated and seeped.

There are hours in terms of time, and of course there are hours in more detail. It is measured on a need-to-know basis. Light rain refers to the rainfall in 24 hours 0 0-9 9 mm, moderate rain refers to the rainfall in 24 hours is 10 0--24 9 mm, heavy rain refers to the rainfall in 24 hours is 25 0--49 9 mm, heavy rain refers to the rainfall in 24 hours is 50 0-99 9 mm, heavy rain refers to the rainfall in 24 hours is 50 0--99 9 mm, heavy rain to heavy rain concept refers to the rainfall in 24 hours is 33 0--74 9 mm.

50mm of rainfall refers to a cumulative rainfall of 50mm in 24 hours, which is equivalent to the level of a rainstorm. If converted to the average depth of precipitation, 50 mm of precipitation is equal to 1 square meter of average water depth of 1 meter.

50 mm of rainfall is 24 hours, and 50 mm of rainfall is heavy to heavy rain.

According to the regulations, all daily rainfall of less than 10 mm is called light rain, millimeters are moderate rain, millimeters are heavy rain, heavy rain is millimeters, and heavy rainfall is 100-250 millimeters.

Rainfall is generally measured with a rain measuring cylinder, so precipitation may contain a small amount of dew, frost and pine. In meteorology, there are often yearly, monthly, daily, 12-hour, 6-hour or even 1-hour precipitation, and the rain and snow that falls in 6 hours all melt into water, which is called 6-hour precipitation; All the rain and snow that falls in 24 hours melt into water, which is called 24-hour precipitation. All the rain and snow that falls in a decade melt into water, which is called the precipitation in October; Over the course of a year, all the rain and snow that falls melt into water, which is called "annual precipitation".

50mm of rain falls to mean heavy rainfall. Rainfall refers to the depth of the water layer that has accumulated on the water surface without evaporation, infiltration, and loss of rainfall from the sky to the ground, generally in millimeters, which can intuitively indicate the amount of rainfall.

Light rain, moderate rain, heavy rain, heavy rain, etc., are generally measured in daily rainfall. Among them, light rain refers to a daily rainfall of 10 mm, a moderate rainfall of 10 to mm, a heavy rainfall of 25 to mm, a rainstorm of 50 to mm, a heavy rainfall of 100 to 250 mm, and a heavy rainfall of more than 250 mm.

The concept of rainfall for this value is as follows:A precipitation of 1 mm indicates the accumulation of water at a depth of 1 mm on a plane without evaporative infiltration. For example, this is equivalent to pouring two 500 ml bottles of mineral water on one square meter of horizontal glass surface, and 50 mm of precipitation is equivalent to 100 bottles of such mineral water in a round.

According to the identification of the relevant authorities, 5 mm of rain can make the arid land have 3-6 mm of water. However, weather forecasts issued by the Met Office often contain technical terms for light rain, moderate rain and heavy rain, and the differences between these are as follows:

Light rain refers to rain with precipitation of no more than 10 mm in 24 hours, light to moderate rain is 5 18 mm, moderate rain is 10 25 mm, moderate to heavy rain is 18 38 mm, heavy rain is 25 50 mm, and heavy to heavy rain is 38 75 mm. Rainfall of more than 50 mm in 24 hours is called heavy rain, more than 100 mm is called heavy rain, and more than 200 mm of Orange wide is called extremely heavy rain.

Summary. Rainfall of 50 mm refers to the cumulative rainfall of 50 mm on 1 square meter in 24 hours on the same day.

Rainfall of 50 mm refers to the cumulative rainfall of 50 mm on 1 square meter in 24 hours on the same day.

Precipitation of 50 mm refers to heavy to heavy rainfall. The meteorological department refers to rain and snow as precipitation, and the amount of precipitation is called precipitation, and the unit of precipitation is usually millimeters. 1 mm of precipitation is defined as 1 mm of water depth per unit area.

Light rain refers to rain with no more than 10 mm of precipitation in 24 hours, light to moderate rain of 5 mm - 18 mm, moderate rain of 10 mm - 25 mm, moderate to heavy rain of 18 mm - 38 mm, heavy rain of 25 mm - 50 mm, heavy to heavy rain of 38 mm - 75 mm. Rainfall of more than 50 mm in 24 hours is called heavy rain, more than 100 mm is called heavy rain, and more than 200 mm is called extremely heavy rain. Millimeter, also known as millimeter (or gong), is a unit of length and rainfall unit, the English abbreviation millimeter is equivalent to 1 centimeter, 100 millimeters is equivalent to 1 decimeter, and 1000 millimeters is equivalent to 1 meter (this is the literal meaning of millimeter).

Climate refers to the multi-year average state of the atmosphere in a region, and the main climate factors include temperature, precipitation and light, among which precipitation is an important element of climate. Generally speaking, areas with annual precipitation of more than 800 mm are humid areas; Areas with annual precipitation of 400 to 800 mm are semi-humid areas; Areas with annual precipitation of 200 to 400 mm are semi-arid; Areas with annual precipitation of less than 200 mm are arid areas. The distribution characteristics of precipitation in a region can be divided into two parts: regional distribution and seasonal distribution.

China is located in the eastern part of the Eurasian continent and the west coast of the Pacific Ocean, with a huge difference in the thermal properties of sea and land, thus forming the most typical monsoon climate in the world, and the precipitation in China is mainly brought by the southeast monsoon in summer. The southeast monsoon is the water vapor brought by the southeast monsoon to the Pacific Ocean in China, and the southeast coastal areas of China will be the first to get the water vapor brought by the southeast monsoon, forming abundant precipitation, and it has become the area with the most abundant annual precipitation in China. From the perspective of the regional distribution of annual precipitation, China's annual precipitation generally decreases from southeast to northwest, and China's northwest region has become the area with the least annual precipitation in China because it is deep inland and far away from the sea.

From the perspective of the seasonal distribution of precipitation, the precipitation in China is mainly concentrated in summer, that is, when the southeast monsoon prevails, so the climatic characteristics of China are "rain and heat in the same period". In winter, the northwest monsoon from the interior of the Eurasian continent prevails in China, and the water vapor content is very small, and the precipitation formed is not much.

Precipitation of 50mm, that is, within 24 hours, the rainfall is 50mm per mu. According to the regulations, all daily rainfall below 10 mm is called light rain, millimeters are moderate rain, millimeters are heavy rain, heavy rain is millimeters, heavy rainfall is millimeters, and more than millimeters are called extremely heavy rain. <

50 mm of precipitation, that is, 50 mm of rainfall in 24 hours. According to the regulations, all daily rainfall below 10 mm is called light rain, millimeters are moderate rain, millimeters are heavy rain, heavy rain is millimeters, heavy rainfall is millimeters, heavy rainfall is millimeters, and more than millimeters are called extraordinarily heavy rain.