How is the weather forecast temperature measured?

Modern weather forecasting systems are mainly divided into ground meteorological observation stations, ground meteorological radar systems, upper atmospheric meteorological observation, meteorological satellites and data analysis centers.

The ground weather station is mainly responsible for collecting meteorological data such as air pressure, temperature, humidity, wind direction, wind speed, precipitation, snow depth, sunshine time, cloud cover and air quality. On the one hand, these data are used to summarize the atmospheric activity information collected by other means for real-time weather forecast, on the other hand, they form a database as valuable information for long-term research on climate change.

The ground weather radar system emits electromagnetic waves with centimeter wavelength to the clouds in the airspace through radar facilities established in various places, and observes the formation of condensation nuclei, ice crystals, raindrops or snowflakes in the clouds within hundreds of kilometers. The data obtained by radar and the measurement results of ground observation stations are summarized and analyzed to realize the forecast of rain and snow weather.

The role of weather forecast

1. Prompt the weather situation: The weather forecast lets people know the weather situation of the day by providing parameters such as temperature, precipitation probability, wind direction and air quality. This has an important guiding role in arranging outdoor activities, choosing clothes and paying attention to traffic safety.

2. Disaster weather forecast: Weather forecast can also predict the occurrence of disaster weather, such as typhoon, rainstorm and blizzard. For the relevant departments and the public, this can make preventive measures and emergency preparations in advance and reduce disaster losses.

3. Guide agricultural production: Weather has an important influence on agricultural production. Weather forecast can provide farmers with the best opportunity and precautions for farming activities such as sowing, fertilizing and spraying, and help crops grow healthily.