Hello，I'm doing a simulation of wrf-les coupling. The CFD tool used is sowfa, and in its examples, there is a case of coupling with wrf, where there is a program to extract data from wrf. But after I changed my filename, nHrs and nPerhrs. Running error : wrfout file does not have z and fc parameters, then I thought of using wrf-python. But an error is still reported: as shown in the figure. Another point is that the variable fc does not appear in the results I run with wrf4.0. Does it mean Free Convection? Can someone tell me how to change this program so that I can run it properly? Any reply would be very helpful to me and I would appreciate it.