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210120-N-NO204-0002.JPG Photo By: U.S. Naval Research Laboratory

WASHINGTON - A plume in red on the map shows an example of how the U.S. Naval Research Laboratory’s CT-Analyst modeling software can track the release of harmful chemicals or biological agents in a crowded urban area during the 59th Presidential Inauguration ceremony of President Joseph R. Biden Jr., Jan. 20, 2021. CT-Analyst is a 3D computer-simulated modeling program that can track the release of chemical, biological, and radioactive substances that can spread large distances in seconds.


This photograph is considered public domain and has been cleared for release. If you would like to republish please give the photographer appropriate credit.

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