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The atmosphere is changing and the potential consequences for the "System Earth" are manifold. Dynamics, chemistry, and radiation determine its state and because all are coupled with each other via various mechanisms it is often difficult to identify a direct link between causes and consequences. A better understanding of this system requires integral, continuous, precise, long term and global observations. In order to contribute to this effort of improved understanding, the World Data Center for Remote Sensing of the Atmosphere (WDC-RSAT) was established. ... more


Ozone Hole Size

Size of the Antarctic ozone hole for 2007 to 2016. The ozone hole sizes shown here are derived using the ROSE/DLR Chemistry and Transport Model (CTM) assimilating total ozone columns derived from MetOp/GOME-2 measurements. To allow the comparison of the ozone hole extents comparing the different years, only trace gas information derived from GOME-2 as well as an equivalent model setup was applied.
The size of the ozone hole is defined as the area where the total ozone columns amount is below 220 DU.

Further links:
WMO Antarctic Ozone Bulletins.
Southern Hemisphere Ozone Analysis Page.
Near-real-time GOME-2 observations and model analyses.

Ozone Dynamics Southern Hemisphere

Weather forecasts

For more information, please go to meteorology page.

Slide Show

Global distribution of NO2 as observed by the Global Ozone Monitoring Experiment 2 (GOME-2). NO2 is an excellent tracer for anthropogenic air pollution. Therefore, big cities and ......more

Please view our slide show with regularly updated images of the WDC products.