function [x_ci_max,x_ci,f_ci,x_2d,y_2d,f_2d,flag_err]=calc_footprint_FFP(zm,z0,umean,h,ol,sigmav,ustar) % [x_ci_max,x_ci,f_ci,x_2d,y_2d,f_2d,flag_err]=calc_footprint ...