Shortly after the end of the Second World War, there was a strong interest in improving the accuracy of weather forecasts. The importance of this was clear: if you can accurately predict storms, or any type of adverse weather, you have a much better chance to prepare for its effects and stay safe. George Dyson1 wrote about this in Turing's Cathedral: "In 1945 meteorology had become a science, while forecasting remained an art....On average, forecasts beyond twenty-four hours were still no better than 'persistence'-predicting that the weather tomorrow will be the same as it was today."

中文翻译：

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预测过去

第二次世界大战结束后不久，人们对提高天气预报的准确性产生了浓厚的兴趣。这一点的重要性是显而易见的：如果您能够准确预测风暴或任何类型的不利天气，您就有更好的机会为它的影响做好准备并保持安全。乔治·戴森 (George Dyson) 在图灵大教堂 (Turing's Cathedral) 中写道：“1945 年，气象学已经成为一门科学，而预测仍然是一门艺术……平均而言，超过 24 小时的预测仍然不比‘坚持’——预测明天的天气会和今天一样。”