How to judge the wind direction in high school geography

1. The horizontal pressure gradient force points from high pressure to low pressure, perpendicular to the isobars;

2. The wind direction shifts to the left in the southern hemisphere and to the right in the northern hemisphere;

3. The non-directional beacon defaults to "up, north, down, south, left, west, right, east". If there is a directional beacon, judge according to the directional beacon;

4. In which direction the red flag flies, or hold a thin silk scarf in your hand , hold it in the air to see which way the silk scarf flies; or grab a handful of fine sand from the ground and sprinkle it into the air to know which direction the wind is blowing.

Extended information:

Meteorologically, the direction of the wind is determined as the direction of the wind. Therefore, the wind coming from the north is called north wind, and the wind coming from the south is called south wind. When weather stations forecast winds, when the wind direction swings left and right in a certain direction and is uncertain, the word "bias" is added, such as northerly wind. When the wind force is very low, the explanation is "the wind direction is uncertain".

Based on the calculated wind direction frequency, we can know which wind direction has more and which wind direction is the least in a certain area. According to observations, northerly winds (north wind, northeasterly wind, northwest wind) are common in North China, the Yangtze River Basin, South China and coastal areas in my country in winter, while southerly winds (souther wind, southeasterly wind and southwesterly wind) are common in summer.