Chinese Academy of Meteorological Sciences, Beijing 100081, China
Abstract:
In terms of statistical physics, a fluid such as the atmosphere is a many-body system which has a vast amount of degree of
freedom and thus obeys the second law of thermodynamics.
In this paper, a noticeable improvement of the prognostic outputs is made by reconstructing the terms of the horizontal diffusion
of MM5 according to the principles of the second law of thermodynamics; besides, the computational noise is effectively and
significantly suppressed since the physical dissipative technique for reconstructing suggested in this paper is based on the
physical law rather than on the computational method such as the artificial viscosity.