氣溫日資料轉換為小時資料

Modeling temporal variation in air temperature From Campbell, G.S. and J.M. Norman (1997) An introduction to environmental biophysics Equation (2.2) and (2.3) page23 dimentionless diurnal temperature function Gamma(t) = 0.44 – 0.46 sin(w * t + 0.9) + 0.11 sin(2wt + 0.9) Where w = pi/12, t is time of day in hours The hourly temperature calculated from following equations T(t) = Tmax,i-1 Gamma(t) + Tmin,i [1-Gamma(t) ] 0 < t <= 5 T(t) = Tmax,i Gamma(t) + Tmin,i [1-Gamma(t) ] 5 < t <= 14 T(t) = Tmax,i Gamma(t) + Tmin,i+1 [1-Gamma(t) ] 5 < t <= 14 Here, Tmax is the daily maximum temperature and Tmin is the minimum temperature. The subscript I represents the present day; i - 1 is the previous day, and i + 1 is the next day. 檔案下載 https://drive.google.com/file/d/1AqnJnoA3M0SyjoCvRWWSDPR2OSH0U6Iq/view?usp=sharing