What is the current rainfall in units?

The depth of the water layer that falls from the sky to the ground, and the depth of the water layer that accumulates on the surface of the water without evaporation, infiltration, or loss, is called rainfall (in millimeters), which can visually indicate the amount of rainfall. At present, the commonly used instruments for measuring rainfall include rain measuring cylinders and measuring cups. The rain gauge is generally 20 cm in diameter and contains a funnel and a bottle.

The measuring cup has a diameter of 4 cm, and it is used with a rain gauge. When measuring, pour rainwater from the rain scale into a measuring cup, and you can know the amount of rain for the day according to the scale on the cup.

The China Meteorological Administration stipulates that the rainfall within 24 hours is called the daily rainfall, and the daily rainfall is less than 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 rainfall. Due to the vast territory of our country, a small number of areas have other provisions according to the specific conditions of the province.

For example, in the rainy Guangdong, the daily rainfall of more than 80 mm is called heavy rainfall; In the Yan'an area of Shaanxi Province, where there is little rain, the daily rainfall of more than 30 mm is called heavy rainfall.

The above explains how rainfall is measured.

I add: the rainfall is measured. For example, if you drop a height of 1 mm in a rain gauge, then the rainfall is 1 mm.

The measuring cup mentioned above is to measure the height of the rainfall, and you can also use an accurate method to directly measure the height of the water in the rain gauge, if you can, ha, it's too troublesome, so use the measuring cup to simplify.

Precipitation is measured in millimeters, and precipitation is the depth at which liquid or solid (melted) water falls from the sky to the ground, without evaporation, infiltration, or loss, and accumulates in the horizontal plane. In mm, one decimal place is taken in meteorological observations.

Precipitation is a measure of how much precipitation falls in an area. Specifically, it refers to the depth at which liquid and solid (melted) precipitation falls from the sky to the ground, accumulating in the horizontal plane without evaporation, infiltration, and loss.

Rainfall is the depth of the water layer that falls on a certain point on the ground or on a certain unit area in a certain period of time, measured in millimeters.

Generally, a rain gauge is used to measure the precipitation in a certain literal area during a period of Chongxiao spring.

Provisions: The rainfall within 24 hours is called the daily rainfall, where the daily rainfall is less than 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 extraordinarily heavy rainfall.

The unit of rainfall is expressed in mm.

mm, also known as gongli or gong, is a unit of length and rainfall, in Chinese, millimeters. 10 mm is equivalent to 1 centimeter, and 1 millimeter of precipitation refers to 1 millimeter of water depth per unit area.

Basic definition of rainfall:

Rainfall refers to the depth of the water layer that falls to the surface in a certain period of time, and is expressed in millimeters. The amount of rainfall per unit time is called the rainfall intensity. Rainfall intensity is classified by rainfall rating.

The amount of rainfall in the flood control department is the depth of the water layer that falls on the ground at a certain point or on a certain unit area within a certain number of times, calculated in millimeters.

Rainfall refers to the depth at which liquid or solid water falls from the sky to the ground, without evaporation, infiltration, or loss, but accumulates in the horizontal plane. The amount of precipitation is measured in mm, and one decimal place is taken in meteorological observations, which can intuitively show the amount of rainfall.

Rainfall is an important basis for calculating regional water resources, so it is necessary to find an accurate and easy way to increase rainfall.

Millimetre. Because 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, it can intuitively indicate the amount of rainfall.

The millimeter, also known as the metric mile (or gong), is a unit of length and a unit of rainfall, abbreviated as mm.

Difference Between Precipitation and Rainfall:

Meteorological forecasts refer 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.

Meteorological forecasts or towns call rain and snow 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.

How much precipitation falls on the field per millimeter, the area of each acre is square meters, so 1 millimeter of precipitation is equal to 0,667 cubic meters of water per acre. Each cubic meter of water is 1,000 kilograms, so 1 millimeter of precipitation is equivalent to pouring about 650 kilograms of water per acre. It has been determined that 5 mm of rain can soak dry land with 3 cm to 6 cm.

Light rain, moderate rain, heavy rain, heavy rain, etc., are generally measured in daily rainfall. Among them, light rain refers to daily rainfall of less than 10 mm; Moderate rainfall of 10 mm on a day; Heavy rainfall of 25 mm; Heavy rainfall of 50 mm; Heavy rainfall of 100 250 mm; Heavy rainfall of more than 250 mm.

1. The unit of rainfall is mm as the unit of measurement.

2. Precipitation.

precipitation) refers to the depth of liquid or solid (melted) water that falls from the sky and falls to the ground without evaporation, infiltration, or loss, but accumulates on a horizontal plane. In mm, one decimal place is taken in meteorological observations. The amount of precipitation in 1 mm is the amount of precipitation on one acre of land (666 7 square meters) to reach a depth of 1 mm.

3. Precipitation: Data that measures the amount of precipitation in an area. Specifically, it refers to the depth at which liquid and solid (after melting) precipitation falls from the sky to the ground, accumulating in the horizontal plane without evaporation, infiltration, and loss.

Rainfall is generally measured in millimeters, which can visually indicate the amount of rainfall. The amount of precipitation per unit of time is called precipitation intensity, which is usually measured in mm h or mm min. The amount of rainfall per unit of time is called rain intensity.

Average the annual precipitation of a place over many years is called the "average annual rainfall" of that place. For example, the average annual rainfall in Beijing is millimeters, and the average annual rainfall in Shanghai is millimeters.

Generally, it is measured in millimeters. In order to make the amount of precipitation have a high degree of accuracy and comparison, the meteorological observation specification stipulates that precipitation refers to the depth at which liquid or solid (after melting) precipitation that falls from the sky to the ground and accumulates on the horizontal plane without evaporation, infiltration, or loss.

Precipitation has an important impact on human production and life. Too much or too little precipitation can be a disaster. Therefore, people need to know how much water falls in a rain or snow, and they also need to know how much rain (snow) falls in a year, season or month.

In this way, the amount of precipitation needs to be measured. In our country, it is common to use a few fingers of rain or a few inches of rain (that is, a few fingers or inches deep that penetrates into the soil) to describe the size of a rain. This method can be used for rough estimates of the degree of drought mitigation in the local area, for example, but it does not provide accurate information and is not easy to compare with each other.

Therefore, it is not scientific to use the depth of rainwater infiltration to represent the amount of precipitation.

Precipitation (mainly refers to: rainfall, snowfall) is measured in millimeters or liters of square meters. 100 millimeters of precipitation is equal to 100 liters of square meters of precipitation.

If converted to the average depth of precipitation, 100 mm of precipitation is equal to 1 square meter of precipitation with an average depth of 1 meter.

Hope it helps!

Rainfall is generally described in (millimeters).