The wind speed and direction are familiar concepts and we often say that the north wind blew, or that it was windy today. This already involves the concept of wind speed. Then, in meteorology, how is the wind speed and direction defined? The direction of the wind is the direction of the wind. If the wind blows from the south, it is called the south wind. When the wind blows from the north, it is called the north wind. When the wind direction is not regular, you can add a biased character. The wind speed is the speed of the wind and the unit is m/s. In general, we classify the wind speed, usually divided into 13 levels. There are many instruments for measuring wind direction wind speeds 0, 1, 2, .... Topographic instruments have wind speed recorders to measure wind speed and direction. Sometimes called wind direction wind speed monitor.
Wind direction, expressed in terms of position or angle. In the weather forecast, we often heard such words: Tonight, tomorrow, southerly wind, 4-5. This southerly wind is the wind direction, and 4-5 is the wind speed. The word "bias" means that the swinging of the azimuth cannot be determined. The north wind that is commonly referred to is the wind blowing from the north, and the south wind is the wind blowing from the south. Wind speed is divided into 12 levels in the academic community: windless, soft wind, light wind, breeze, gentle wind, strong wind, strong wind, blast, strong wind, gale force, gusty wind, storm, and hurricane. In general, the impact of wind speed and direction on crops is not particularly large, but we can't ignore its impact on crop plants. Therefore, the measured wind speed and wind direction play a non-negligible role in grasping the growth status of crops.
In addition, in meteorological measurements, there are often related parameters such as carbon dioxide content, atmospheric temperature, atmospheric humidity content, and illuminance. Because the atmosphere is a complex, she has many parts. As a result, a series of instruments for measuring these parameters such as a temperature illuminometer, a carbon dioxide recorder, a temperature illuminometer, and the like have also been produced. The impact of meteorological factors on agriculture is very large and even fatal. Farmland operations are basically dependent on natural resources. Although technology is now developed, greenhouse technology, drip irrigation, and sprinkler irrigation techniques are emerging. However, agriculture is still very dependent on the natural environment. Sunshine, water, and the atmosphere are the most basic factors. The wind speed is a few of the many factors. But the impact on agriculture is very important. Therefore, the importance of wind anemometer is also important.
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