CISL Visualization Gallery

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 California 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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Water Vapor Content of the Current and Future Climate of North America

This visualization shows column integrated water vapor content over North America for the period April to June 2011, during which time one of the most destructive and deadliest tornado outbreaks to impact the United States occurred (April 25-28). Side-by-side comparison of the simulations show greater water vapor content in the simulated future climate, which can…

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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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Planetary Boundary Layer Height

Planetary Boundary Layer (PBL) is the lowest part of the atmosphere which is directly influenced by the Earth’s surface. The top of the PBL often acts like a cap to trap air in the layers below thus having a major influence on atmospheric phenomenon like dispersion and concentration of pollutants (air quality), trade winds, cloud…

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Present and Future Climate in a Global Model

This visualization shows a CESM1 model comparison between a present day (1990) and a future (2090) simulation using a business-as-usual or high emissions scenario, called RCP8.5.  Clouds represent six-hourly time steps of total water vapor for one year. Technically speaking, this is the CESM1 model variable, TMQ, defined as the total precipitable water (vertically integrated)…

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Droplet Dynamics in Cloud Turbulence

The study of droplet dynamics is a crucial part of cloud physics and involves investigation of each and every droplet’s properties. It is difficult to carry out such investigations using field observations. Small scale simulation is one method to study such phenomena, and visualization of these processes provides a deep and quick understanding. This work…

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Climate Change: Precipitation

This simulation shows a comparison between present day (1990) and future (2090) precipitable water in the Earth’s atmosphere using an RCP8.5 emissions scenario. Movies  Movie File (.mov, 1920×1080, 236MB) Images Science Credits This simulation was made possible because of the large number of individuals both from within NCAR and the many outside collaborators who have…

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Climate Change: Temperature Anomalies

A comparison between present and future (RCP8.5) surface temperature anomalies. A 3-day smoothing has been applied to the output to dampen day to day variability. Movies  Movie File (.mov, 118MB, 1920×1080) Images Computational Modeling Nan Rosenbloom and Gary Strand (NCAR/CGD) Visualization and Post-production Tim Scheitlin and Matt Rehme (NCAR/CISL) Model CESM Visualization Software NCAR Command…

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