About PE calculation:

1. In Column M, the PE equation is: PET =Re(T+5)/28.5/100. However, the note shows “ETP=Re(T+5)/28.5/68”
2. PET is based on Oudin et al. 2005 work. From the Equation 3 of the attached paper, PE =0.408Re(T+5)/100. It is quite different from the spreadsheet.