Role of Vertical Resolution in Numerical Models Towards the Intensification, Structure and Track of Tropical Cyclones

Autor: D. V. Bhaskar Rao, D. Hari Prasad, D. Srinivas, Y. Anjaneyulu
Rok vydání: 2010
Předmět:
Zdroj: Marine Geodesy. 33:338-355
ISSN: 1521-060X
0149-0419
Popis: The impact of vertical resolution on the evolution and movement of tropical cyclones was studied using NCAR MM5 model with a horizontal resolution of 9 km. Four numerical experiments were performed with different vertical resolutions, that is, with 23 vertical levels as control experiment, and 36 vertical levels with high resolution in the lower troposphere, 33 vertical levels with high resolution in the upper troposphere and 46 vertical levels with increased vertical resolution throughout the troposphere as relative to base experiment. The results indicate that increased vertical resolution in the lower troposphere produces efficient intensification and better structure in terms of eye and eyewall. Increased vertical resolution at lower levels improves the prediction of vertical shear of horizontal wind. Experiments with high resolution in the lower troposphere and high resolution throughout the troposphere simulate better track up to 72 hours.
Databáze: OpenAIRE
Externí odkaz:
Nepřihlášeným uživatelům se plný text nezobrazuje