CFC-11 Deep
Ocean Penetration
CFC's are man-made pollutants which are extremely inert in sea water
and detectable at very low concentrations. Observation concentrations
provide a valuable measure of truth for computer models of ocean circulation,
particularly with respect to their representation of deep water pathways.
Climate Change Simulation
Temperature anomalies are simulated for the past and future over a 230 year period in a mid-range scenario.
Climate Change Simulation
Temperature anomalies are simulated for the past and future over a 230 year period in a mid-range scenario.
CO2
& Temperature Differences
Monthly average temperature differences are shown here between a 1%
CO2 transient experiment and a control run of the Parallel Climate
Model (PCM) at T42 resolution.
Greenhouse
Gases & Sulfate Aerosols
Climate models are often used to simulate future climates assuming
specific changes in our environment. Predicted global temperature
changes are shown by computing the effects of expected increased atmospheric
levels of carbon-dioxide and sulfate aerosols.
Greenhouse
Gases & Surface Temperature Change
Surface temperature and its predicted change due to increased levels
of greenhouse gases are simulated over a period of several decades
using the NCAR Climate System Model.
Polar Vortex
Breakdown
In early winter, cold temperatures result in the formation of a strong
circumpolar flow in the stratosphere, known as the polar night vortex,
producing favorable conditions for ozone depletion.
Polar Vortex
High Resolution Simulation
This new simulation of the stratospheric polar night vortex breakdown
was computed at a significantly higher resolution than the previous
one (two to four times the horizontal and vertical resolution).
Sea
Ice and CO2 Levels
After 140 years of a 1% annual increase in CO2, this simulation shows
a dramatic reduction in sea ice thickness at the North Pole. Results
for the South Pole are also shown.
Sulfate
Aerosol Evolution
The NCAR Community Climate Model (CCM3) is used to model sulfate aerosols
in the atmosphere that originate from coal burning and smelting operations
around the globe. These visualizations show the daily global distribution
of aerosols during a single model year.