Traditional Culture Encyclopedia - Weather inquiry - What is the weather symbol of Sanwan?
What is the weather symbol of Sanwan?
Visibility is obviously reduced during sand blowing, and the sky is cloudy and yellow when it appears. The north is easy to appear in spring. The wind is strong in sand-blowing weather, which affects the visibility between 1 km and1km.
The function of meteorological graphic symbols:
1, weather graphic symbols In order to facilitate public understanding and recognition, a set of graphic images representing weather phenomena has been formulated for use by TV or other public media.
2、? The three horizontal lines represent the "fog" that often brings disasters to aviation, navigation and road transportation. Refers to a large number of water droplets or ice crystal particles suspended in the air near the ground. When this aggregate reduces the horizontal visual distance below 1000 meters, it is called fog; When the visible distance drops to 1000 ~ 10000 meters, it is called light fog.
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