The effects of nonlinear advection in the PBL on the dissipation of the atmo-spheric kinetic energy (DAKE) are studied. The DAKE formula involving large-scaleparameters are thus determined. Results show that the effects of nonlinear advection willchange the magnitude of the DAKE, depending on the characteristic features of thepressure pattern. Hence, our knowledge of the DAKE will be further improved. comparison is also made of the above results with those obtained under the assumption ofthe geostrophic momentum approximation herein.