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Various weather symbols in weather forecast

发布:董叔枫

本文目录一览⒈What is the symbol for rain and snow levels?

1. The symbols of rain and snow during the day are as follows:

2. The symbols of rain and snow levels at night are as follows:

Extended information

Light rain: The rainfall in 1d (or 24h) is less than 10mm.

Moderate rain: 10-25mm rainfall in 1 day (or 24 hours).

Heavy rain: 25-50mm rainfall in 1 day (or 24 hours).

Heavy rain: 50 to 100mm of rainfall in 1 day (or 24 hours).

Heavy rainstorm: 100-250mm of rainfall in 1 day (or 24 hours).

Extreme heavy rain: rainfall exceeding 250mm in 1 day (or 24 hours).

Light snow: a snowfall process in which the snowfall amount within 12 hours is less than 1.0mm (equivalent to the amount of melted rainwater, the same below) or the snowfall amount within 24 hours is less than 2.5mm.

Medium snow: a snowfall process in which the snowfall amount is 1.0~3.0mm within 12 hours, or the snowfall amount is 2.5~5.0mm within 24 hours, or the snow depth reaches 3CM.

Heavy snow: a snowfall process in which the snowfall amount is 3.0~6.0mm within 12 hours, or the snowfall amount is 5.0~10.0mm within 24 hours, or the snow depth reaches 5CM.

Blizzard: A snowfall process in which the snowfall amount is greater than 6.0mm within 12 hours, or the snowfall amount is greater than 10.0mm within 24 hours, or the snow depth reaches 8CM.

Heavy blizzard: a snowfall process in which the snowfall amount is greater than 12.0mm within 12 hours, or the snowfall amount is greater than 20.0mm within 24 hours, or the snow depth reaches 16CM.

Extremely heavy snowfall: a snowfall process in which the snowfall amount is greater than 24.0mm within 12 hours, or the snowfall amount is greater than 40.0mm within 24 hours, or the snow depth reaches 32CM.

Reference: Baidu Encyclopedia-Rainfall Level

⒉What are the symbols for weather forecasts?

Weather symbols are divided into two forms, namely day and night.

Weather symbols during the day:

Weather symbols at night:

Meteorological disaster warning signals (hereinafter referred to as Early warning signal) refers to the early warning information released to the public by meteorological stations affiliated to meteorological authorities at all levels. Early warning signals consist of names, icons, standards and defense guidelines, and are divided into typhoon, heavy rain, blizzard, cold wave, strong wind, sandstorm, high temperature, drought, thunder and lightning, hail, frost, heavy fog, haze, road ice, etc.

Meteorological disaster early warning signals are generally divided into four levels (levels IV, III, II, and I): blue, yellow, orange, and red, repre senting general, severe, serious, and extremely serious respectively. At the same time Marked in Chinese and English, consistent with all emergency response levels and colors of the country.

Extended information:

Weather forecast (measurement) or meteorological forecast (measurement) is the use of modern science and technology to pre dict the state of the earth's atmosphere at a certain location in the future. pre dict. Since pre historic times, humans have begun to pre dict the weather to arrange their work and life accordingly (such as agricultural production, military operations, etc.). Today's weather forecasting is primarily based on collecting large amounts of data (temperature, humidity, wind direction and speed, pre ssure, etc.) and then using current knowledge of atmospheric processes (meteorology) to determine future air changes. Because of the chaos of atmospheric processes and because today's science does not finally have a thorough understanding of atmospheric processes, weather forecasts will always have a certain amount of error. [1]

The satellite cloud images of my country's Central Meteorological Observatory are taken from meteorological satellites such as "Fengyun-1". Using satellite cloud images and photos for analysis can improve the accuracy of weather forecasts. Weather forecasts are usually divided into three types based on the length of time: short-term weather forecast (2 to 3 days), medium-term weather forecast (4 to 9 days), and long-term weather forecast (more than 10 to 15 days). CCTV broadcasts mainly short-term weather forecasts every day.

Reference: Baidu Encyclopedia entry weather forecast

⒊What symbols are used to repre sent weather?

There are many types of weather, with various corresponding symbols. Here we collect a complete list of weather symbols to help everyone distinguish and identify various types of weather.

The symbols commonly used in weather forecasts are: clear, cloudy, cloudy, frost, thunderstorm, rainfall, snowfall, fog, wind, cooling, sunshine, rain, sun, moon, clouds and the symbols of umbrellas and snowmen.

Weather forecast symbols are special symbols repre senting various weather phenomena, cloud shapes, sky conditions, etc. In order to facilitate public understanding and identification, the country has specially developed a set of symbols repre senting weather phenomena. Graphics are intended for use on television or other public media.


Extended information:

Weather symbols - Weather symbol standards for weather travel services:

1. Scope

This standard specifies the labeling, definition, expre ssion, usage, etc. of the National Public Meteorological Service weather symbols.

This standard applies to the static repre sentation of weather symbols in national public meteorological services.

2. Terms and definitions

(1) Clear

The sky is cloudless, or there are scattered clouds, and the cloud cover is less than 1/10 of the sky area.

Weather symbols:

Sunny

(2) Cloudy

The sky has 4-7% of medium and low clouds or 6- 10% high cloud.

Weather symbol:

Cloudy

(3) Cloudy day

The sky is dark and densely covered with clouds, or there are gaps in the sky. It still feels dark (the total cloud cover is more than 80%), and occasionally weak sunlight can be seen through the gaps in the clouds.

Weather symbols:

Cloudy

(4) Light rain

12-hour pre cipitation is 0.1-4.9 mm, 24-hour pre cipitation 0.1-9.9mm.

Note: This regulation does not apply to the arid areas in western my country. The western provinces have other regulations.

Weather symbols:

Light rain

(5) Moderate rain

12-hour pre cipitation 5.0-14.9 mm, 24-hour pre cipitation 10.0-24.9mm.

Note: This regulation does not apply to the arid areas in western my country. The western provinces have other regulations.

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