s*******q
发帖数: 310 | 1 我有一组数据记录某地几十年气温的数据，想用SAS分析，求教如何解决leap year的问
题？我的数据中还有降雨和降雪的数据，几十年里的每天气温数据有极大极小以及均值
温度，如何分析几十年内气温是否升高了呢？谢谢了，回答有帮助的，包子答谢。 | w****n
发帖数: 10 | 2 You can do a running average on daily average temperature data to smooth the
noisy data. Look for the so-called "Hockey stick".
After you remove the long-term trend, daily periodicity, and seasonal cycles
, I believe that the data you left will be white noise, suggested by most
climate model.
Climatic data are time series data, meaning that they are autocorrelated and
regular regression models fail to apply.
I cannot recall any method to test if the warming trend is significant or
not.
Hope it is helpful! |
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