On the Sensitivity of Mesoscale Models to Surface-layer Parameterization Constants

نویسندگان

  • J. R. GARRATT
  • R. A. PIELKE
چکیده

The Colorado State University standard mesoscale model is used to evaluate the sensitivity of one-dimensional (1D) and two-dimensional (2D) fields to differences in surface-layer parameterization “constants”. Such differences reflect the range in the published values of the von Karman constant, Monin-Obukhov stability functions and the temperature roughness length at the surface. The sensitivity of 1D boundary-layer structure, and 2D sea-breeze intensity, is generally less than that found in published comparisons related to turbulence closure schemes generally.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Sensitivity of an Ocean General Circulation Model to a Parameterization of Near-Surface Eddy Fluxes

A simplified version of the near-boundary eddy flux parameterization developed recently by Ferrari et al. has been implemented in the NCAR Community Climate System Model (CCSM3) ocean component for the surface boundary only. This scheme includes the effects of diabatic mesoscale fluxes within the surface layer. The experiments with the new parameterization show significant improvements compared...

متن کامل

بررسی پارامترسازی عمق لایه پایدار شبانه و تاثیر آن در آلودگی هوای یک منطقه شهری با توپوگرافی پیچیده (تهران)

Mixing height of the atmospheric boundary depends on the vertical variation of temperature in the atmosphere which includes temperature inversion (including surface and elevated inversions) that has a significant effect on air quality. The mixing height like some other meteorological variables has diurnal variations. The reason for that is its dependence on some other basic meteorological param...

متن کامل

Accounting for Pliem-Xiu and NOAH Module to Simulate Dust: A Case of Western Areas of Ahwaz

Extended abstract 1- INTRODUCTION In the arid and semi-arid areas of Asia, dust storms occur frequently. Much progress has been made in the monitoring modeling and prediction of Asian dust storms. Dust emission is caused by wind erosion in the sensitive areas. Wind erosion is described as the transportation of soil particles by means of the wind. Soil Surface moisture is one of the most i...

متن کامل

Calculation of geometric characteristics of land cover and urban canyon for multi-scale parameterization of megalopolis meteorological models

The results of studies on the development of computational techniques for geometric and thematic characteristics of the underlying surface and urban canyon are presented. These characteristics are intended for parameterization of the local model of energy-mass exchange between the surface layer of the atmosphere and the surface of the active layer of the underlying urban areas (cities). Multisc...

متن کامل

The impact of plant stomatal control on mesoscale atmospheric circulations

Avissar, R. and Pielke, R.A., 1991. The impact of plant stomatal control on mesoscale atmospheric circulations. Agric. For. Meteorol., 54: 353-372. Only a few numerical studies with mesoscale atmospheric models have been undertaken to explore the influence of vegetation on the generation and modification ofmesoscale atmospheric circulations. Nevertheless, these few studies have demonstrated the...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2004