Terrain-Induced Turbulence over Lantau Island

Lantau Island is the site of the Hong Kong Airport, Chek Lap Kok, which opened in 1998. A team of researchers from the Lantex field experiment were on-site in 1994 to study the terrain-induced turbulence effects on the new airport site. While they were there, tropical storm Russ came through, and the data they collected was used to produce the following visualizations.


Bernoulli Energy	Enstrophy	vrms iso

QuickTime \| Real \| MPEG Note the vigorous activity over low-altitude terrain. Vortex-shedding characteristics of great interest.	QuickTime \| Real \| MPEG Shows the magnitude of the vorticity squared. Note the "smoke rings" coming off the mountain peak.	QuickTime \| Real \| MPEG



Vertical Vorticity

QuickTime \| Real \| MPEG Red and yellow show opposite rotations. Note the counter-rotating vortices advecting down the mountainsides.	QuickTime \| Real \| MPEG

Model
Model Name:	Clark-Hall
Data
Dataset:	Initialization data sourced from Lantex field experiment
Time Resolution:	15 seconds
Domain
Horizontal Real World:	11 x 17 km
Horizontal Resolution:	192 x 289
Vertical Resolution:	49
Visualization
Visualization:	Don Middleton, NCAR
Software:	Vis5D
Hardware:	SGI Onyx with Infinite Reality Graphics
Project
Scientists:	Dr. Terry Clark, NCAR, MMM Bill Hall, NCAR, MMM Janice Coen, NCAR, MMM
Date Catalogued:	2002-08-12
Rights:	© 2002, UCAR, All rights reserved.