CISL Visualization Gallery

Weather Systems in a World without Land or Seasons

Aquaplanet simulations—as their name suggests—are idealized representations of Earth where the planet is covered entirely by water. The absence of continents, while unrealistic, provides a clean laboratory where weather systems can develop, evolve, and dissipate as they would do over Earth’s oceans. This kind of simulation is, therefore, useful for learning about the fundamental processes…

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Ocean Surface Boundary Layer Turbulence Under Hurricane Irene

Simulated ocean surface boundary layer turbulence under Hurricane Irene (~9:30 UTC, August 28, 2011) entrains cold bottom water that cools the sea surface and weakens the hurricane as it makes landfall on the New Jersey continental shelf.  Large-aspect-ratio coherent structures that modify the evolution of the mean sea-surface temperature are highlighted in a 2 km by 2…

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Coalescing Droplets in Turbulence

Coalescing Droplets

Precipitation in warm clouds can be explained by coalescing water droplets. This coalescence can be accelerated by turbulent vortices within the cloud. In this visualization, we see how this turbulence drives the coalescence of large and small droplets. Movies   Movie File (.mp4, 224MB, 1920×1080) Images Science Credits Melanie Li Sing How (Cornell), Lance Collins…

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HRRR Smoke in the Summer of 2020

HRRR Smoke 2020

  These volume renderings show the simulated dispersal of smoke generated with the High Resolution Rapid Refresh (HRRR) model. This visualization emphasizes the Western wildfires during the last days of August, 2020. Science credit to Ka Yee Wong and Ravan Ahmadov, of NOAA’s Global Systems Laboratory. Movies Movie File (430 KB, MP4) Images   Science…

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F5 Tornado in CM1

A simulation of an F5 tornado produced by Cloud Model 1 (CM1). Movies   Quicktime Movie File (1920×1080, 2.57 GB) Images Science and Visualization Credits Leigh Orf, University of Wisconsin Madison. Model CM1. Visualization Software VAPOR

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Radiative MHD Simulation of a Solar Active Region

Radiative MHD Simulation of a Solar Active Region from Flux Emergence to Coronal Mass Ejections. Movies Movie File (.mp4, 621MB, 1920×1080)  Images Computational Modeling Matthias Rempel (NCAR/HAO) Feng Chen (NCAR/HAO, University of Colorado/LASP) Visualization and Post-production John Clyne and Matt Rehme (NCAR/CISL) Acknowledgments This work was supported by the National Science Foundation and NCAR’s Advanced…

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Modelling The Indonesian Throughflow

Rising ocean temperatures have given rise to coral bleaching events at higher rates than have been seen in observed history. Researchers at the National Center for Atmospheric Research are studying how effectively coral reef ecosystems can repopulate each other after bleaching events through a metric called Potential Connectivity. In this visualization, we observe a state…

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Yarnell Hill Fire

Ignition: 6/28/13 near Yarnell, Arizona Movies Images Science Credits Principle Investigator: Janice Cohen (NCAR) Collaborator: Wilfrid Schroeder (Univ. of Maryland) Visualization Software VAPOR  

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King Fire 2014

The King Fire was ignited on 9/13/14 in the Eldorado National Forest northeast of Pollock Pines, CA, where pine plantations lie between steep canyons. Eventhough fuel conditions were dry, environmental winds recorded at nearby weather stations were weak, thus rapid fire growth was not expected. On the 17th, the north-spreading fire reached the Rubicon canyon…

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Sunspots

Transition from umbra to penumbra shows changes in magnetic field. The interface between a sunspot’s umbra (dark center) and penumbra (lighter outer region) shows a complex structure with narrow, almost horizontal (lighter to white) filaments embedded in a background having a more vertical (darker to black) magnetic field. Farther out, extended patches of horizontal field…

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