Post Nagoya

Uploaded from authorPOINTLite
Views:
 
     
 

Presentation Description

No description available.

Comments

Presentation Transcript

Slide1: 

CReSS: A Cloud Resolving Storm Simulator CReSS is a cloud resolving atmospheric model designed for a high performance parallel computing to simulate cloud-scale to storm-scale phenomena. Objectives of CReSS are thunder-storms and related phenomena: tornadoes, downbursts, hail storms, squall lines and so on. Key Features of CReSS The three-dimensional non-hydrostatic and compressible equation system in a terrain-following coordinate The 1.5th order turbulent closure Warm and cold rain bulk parameterizations A parallel computation in use of MPI Simulation of a Tornado within a Supercell CReSS performed a simulation experiment of a tornado within a supercell observed on 24 September 1999 in the Tokai District of Japan. The simulation aimed to resolve the vortex of the tornado and its parent supercell with a uniformly-spaced grid system. The tornado hit Toyohashi city, mid-Japan on 24 September 1999. Two dimensional domain decomposition and communication strategy. Horizontal display of the simulated supercell is shown with a closed-up horizontal (up-right) and vertical (down-left) cross-section of the simulated tornado. The computational domain is approximately 50 x 50 km in horizontal and the grid-spacing is 100 m. The result shows CReSS can successfully simulate tornado and supercell.