In daily life, how do people get information about temperature?

The satellite cloud image of China Central Meteorological Observatory was taken from Fengyun-1 and other meteorological satellites. Using satellite cloud images for analysis can improve the accuracy of weather forecast. Weather forecast is usually divided into three types: short-term weather forecast (2 ~ 3 days), medium-term weather forecast (4 ~ 9 days) and long-term weather forecast (10 ~ 15 days or more). CCTV mainly broadcasts short-term weather forecast every day.

Extended data

Weather forecast is an important means for meteorological work to serve the national economy and national defense construction. Weather forecast is divided into regional weather forecast and local weather forecast according to the forecast scope. According to the needs of customers, there are daily public weather forecasts and professional weather forecasts. According to the length of aging, there are short-term, medium-term and long-term weather forecasts.

Meteorological offices and stations timely and accurately issue weather forecasts, especially severe weather forecasts, through various channels, which have played an important role in protecting people's lives and property and promoting economic development. At first, weather forecasting technology developed rapidly with the development of telegraph. Until the early 1950s, the weather forecast was based on the principle of meteorology.

With the development of computing technology and detection technology, in addition to the conventional weather chart method combined with mathematical statistics method for forecasting, meteorological radar and satellite detection data are applied to forecasting business, and numerical forecasting methods are developed. This method predicts the physical process of the atmosphere by determining the conservation principle of atmospheric mass, energy and momentum, which significantly improves the quality of weather situation forecast, thus promoting the objective quantification of weather forecast.