CISL Visualization Gallery

Global weather simulated by a cloud-resolving weather prediction model

The global weather from 20 October – 4 November 2012, simulated by a cloud-resolving weather prediction model

Model: MPAS – Variable: Outgoing Longwave Radiation

Science: The complex evolution of multiscale cloud systems illustrates the myriad of weather phenomena that populate our atmosphere. Features of interest include the diurnal cycle of convection over central Africa and the Amazon rain forest; the birth, intensification, and demise of tropical cyclones in the Indian Ocean and Western Pacific; the recurring developments of extratropical cyclones along the midlatitude jet streams; and the formation of orographic clouds downstream of the Rocky Mountains.

The simulation was created with the Model for Prediction Across Scales (MPAS), a collaborative project for developing atmosphere, ocean and other earth-system simulation components for use in climate, regional climate and weather studies. The primary development partners are the climate modeling group at Los Alamos National Laboratory (COSIM) and the National Center for Atmospheric Research.

For this experiment, MPAS was configured with a horizontal resolution of 4 km and 55 vertical levels. This resolution allows for the explicit simulation of deep convection (i.e., heavy rain showers and thunderstorms), facilitating the seamless prediction of weather from local to planetary scales. The animation time step is 12 min.

Movies


Movie File (.mp4, Hammer Projection, 1920×1080, 86MB) 

Images

Global Weather Simulation
Global Weather Simulation

Science Credits

Dr. Falko Judt (NCAR ASP Postdoc)

Computational Resources

This research was made possible with an NCAR Strategic Capabilities 3-million core-hour allocation, and facilitated by NCAR’s CISL compute, visualization, and storage resources, including Yellowstone, a 1.5 petaflops high-performance IBM iDataPlex cluster at the NCAR-Wyoming Supercomputer Center in Cheyenne, Wyoming.

Visualization and Post-production

Tim Scheitlin (NCAR/CISL)

Model

The Model for Prediction Across Scales (MPAS) is a collaborative project for developing atmosphere, ocean and other earth-system simulation components for use in climate, regional climate and weather studies.

Visualization Software

The NCAR Command Language (Version 6.4.0) [Software]. (2017). Boulder, Colorado: UCAR/NCAR/CISL/TDD. http://dx.doi.org/10.5065/D6WD3XH5

Acknowledgments

Earth imagery is courtesy of the NASA Visible Earth Project.