Earth  ID: 4180

Volume-Rendered Global Atmospheric Model

This visualization shows early test renderings of a global computational model of Earth's atmosphere based on data from NASA's Goddard Earth Observing System Model, Version 5 (GEOS-5). This particular run, called 7km GEOS-5 Nature Run (7km-G5NR), was run on a supercomputer, spanned 2 years of simulation time at 30 minute intervals, and produced petabytes of output. The model uses a 7.5 km cube-sphere parameterization. Geographic coordinate output volumes from the model are 5760 x 2881 x 72 voxels per time step. For each voxel numerous physical parameters are available such as temperature, wind speed and direction, pressure, humidity, etc. This visualziation uses a combination of the CLOUD and TAUIR parameters.

The visualization spans a little more than 7 days of simulation time which is 354 time steps. The time period was chosen because a simulated category-4 typhoon developed off the coast of China. The frames were rendered using Renderman. Brickmap volumes generated for each time step are about 2.6 gigabytes. This short visualization referenced nearly a terabyte of brickmap files. The 7 day period is repeated several times during the course of the visualization.

This visualization was presented at SIGGRAPH 2014 during the Dailies session.
 

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Visualization Credits

Greg Shirah (NASA/GSFC): Lead Animator
Trent L. Schindler (USRA): Animator
William Putman (NASA/GSFC): Scientist
Laurence Schuler (ADNET Systems Inc.): Project Support
Ian Jones (ADNET Systems Inc.): Project Support
Please give credit for this item to:
NASA's Scientific Visualization Studio

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http://svs.gsfc.nasa.gov/4180

Data Used:
GEOS-5 Atmospheric Model on the Cubed-Sphere 07/16/2005 through 07/24/2005
Note: While we identify the data sets used in these visualizations, we do not store any further details nor the data sets themselves on our site.

This item is part of this series:
Narrated Movies

Keywords:
SVS >> HDTV
NASA Science >> Earth