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发表于 2024-8-16 13:19:35
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本帖最后由 SunJiaming 于 2024-8-16 13:29 编辑
K=(T850-T500)+Td850-(T700-Td700)
附一下ECMWF对K指数的说明:
This parameter is a measure of the potential for a thunderstorm to develop, calculated from the temperature and dew point temperature in the lower part of the atmosphere. The calculation uses the temperature at 850, 700 and 500 hPa and dewpoint temperature at 850 and 700 hPa. Higher values of K indicate a higher potential for the development of thunderstorms. This parameter is related to the probability of occurrence of a thunderstorm: <20 K No thunderstorm, 20-25 K Isolated thunderstorms, 26-30 K Widely scattered thunderstorms, 31-35 K Scattered thunderstorms, >35 K Numerous thunderstorms.
我想如果按照这个公式去计算的话,摄氏度和K做单位应该数量上差273.15,不过我没有找到用摄氏度描述K指数的内容,各类百科在介绍K指数时也没带单位,如果您有用摄氏度描述K指数的文章或者内容,欢迎分享
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