Improvement of Vertical Diffusion Analytic Schemes Under Stable Atmospheric Conditions     

Amela Jeričević  Željko Večenaj 《Boundary-Layer Meteorology》2009,131(2):293-307

Based on gradient transport theory or K-theory, turbulent transport in the atmosphere has long been parameterized using the eddy diffusivity. Due to its simplicity, this approach has often been applied in many numerical models but rarely tested with observations. Here, the widely used O’Brien cubic polynomial approach has been validated together with an exponential approach against eddy diffusivity profiles determined from measurements and from large-eddy simulation data in stable conditions. Verification is completed by analyzing the variability effects on pollutant concentrations of two different vertical diffusion (K(z)) schemes incorporated in an atmospheric chemical model. It is shown that the analytical, exponential solution agrees better with observations than the O’Brien profile and should be used henceforth in practical applications.  相似文献   

A 21-Event, 4,000-Year History of Surface Ruptures in the Anza Seismic Gap,San Jacinto Fault,and Implications for Long-term Earthquake Production on a Major Plate Boundary Fault     

Thomas K. Rockwell  Timothy E. Dawson  Jeri Young Ben-Horin  Gordon Seitz 《Pure and Applied Geophysics》2015,172(5):1143-1165

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