Besides date, time and temperature, what should be recorded in the weather calendar?

In the weather calendar, besides date, time and temperature, cloud cover, precipitation, temperature, wind direction and wind speed should also be recorded.

On the weather map, analyze the weather system and atmospheric state of a certain area. This includes barometric analysis. Use isobar or contour line to represent the spatial pressure distribution and analyze the temperature. The distribution of cold and warm air masses in the atmosphere, the thermodynamic structure and humidity analysis of the atmosphere are all expressed by isotherms. The distribution of water vapor content in the atmosphere is represented by equal specific wet line or equal dew point line.

Wind field analysis. The characteristics of atmospheric flow are expressed by streamline and isowind. On the basis of these analyses, air mass analysis, frontal analysis and air pressure system (or wind field system) analysis can be carried out.

According to the area covered by the forecast, the weather forecast can be divided into:

1, large-scale forecast. Generally speaking, it refers to global forecast, hemispheric forecast, continental or national forecast. Mainly produced by World Meteorological Center, Regional Meteorological Center and National Meteorological Center.

2. Medium-term forecast. Often refers to the provincial (district), state and regional forecasts, which are made by provincial, municipal or state meteorological stations and regional meteorological stations.

3. Small-scale forecasting. Such as the forecast of a county, city, reservoir, airport, port, etc. These forecasts are made by the local weather station.