The two main types of weather maps commonly used include
The two main types of weather maps commonly used include high-altitude maps, which are contour maps, and ground maps, which are isobaric maps.
A weather map is a specially made map filled with meteorological observation records from various places at the same time, which can reflect the weather conditions in a certain area. There are mainly two types of weather maps: surface weather maps and upper-altitude weather maps (isobaric surface maps). Weather maps can display the distribution and interrelationships of various weather systems and weather phenomena. They are a basic tool for analyzing and judging weather changes and making weather forecasts. In addition, related auxiliary charts such as thermodynamic charts, section charts, variable charts, single station charts, etc. are sometimes collectively referred to as weather charts. ?
Weather maps are generally divided into three categories: surface weather maps, upper-altitude weather maps and auxiliary maps. If classified according to its nature, it can be divided into: live analysis chart. Weather maps drawn based on actual observation records. Forecast map. Weather situation forecast maps or weather distribution forecast maps for the next 24, 48, and 72 hours drawn based on the results of weather analysis or numerical weather forecasts. Historical weather maps. A type of historical information printed and published based on fact analysis charts.
In addition, if necessary, we sometimes draw average maps of the average distribution of certain meteorological elements in different time periods (such as ten days, months, and years), and anomaly maps of the difference distribution of the average values, etc.
Upper-altitude weather charts are also called upper-altitude isobaric surface charts or upper-altitude charts. Diagrams used to analyze upper-altitude weather systems and atmospheric conditions. The high-altitude map of a certain isobaric surface is filled with observation records of geopotential height, temperature, temperature dew point difference, wind direction and speed of each sounding station or wind measuring station on the isobaric surface.
Analyze contours and isotherms based on numerical values of relevant elements and label various weather systems. The contour lines on the isobaric surface map represent the distribution of the isobaric surface in space at a certain time, reflecting the location and scope of influence of weather systems such as high-altitude low-pressure troughs, high-pressure ridges, cutting-off low-pressure and blocking high-pressure.