Atmospheric Rivers, Illustrated

Graphics from the Scientific American archive show how these storm systems impact California

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This article was published in Scientific American’s former blog network and reflects the views of the author, not necessarily those of Scientific American


The term “atmospheric river” has bubbled up in the news again, as California braces for the possibility of significant precipitation this weekend.

What are atmospheric rivers, and how has California been affected by them in the past? Here are a few graphics from the Scientific American archive to get you up to speed. Check out “The Coming Megafloods” by Michael Dettinger and B. Lynn Ingram in the January 2013 issue for more context. 

Credit: Don Foley


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Credit: Jen Christiansen (graphic), XNR Productions (map)

Jen Christiansen is acting chief of design and senior graphics editor at Scientific American, where she art directs and produces illustrated explanatory diagrams and data visualizations. She is also author of the book Building Science Graphics: An Illustrated Guide to Communicating Science through Diagrams and Visualizations (CRC Press). In 1996 she began her publishing career in New York City at Scientific American. Subsequently she moved to Washington, D.C., to join the staff of National Geographic (first as an assistant art director–researcher hybrid and then as a designer), spent four years as a freelance science communicator and returned to Scientific American in 2007. Christiansen presents and writes on topics ranging from reconciling her love for art and science to her quest to learn more about the pulsar chart on the cover of Joy Division’s album Unknown Pleasures. She holds a graduate certificate in science communication from the University of California, Santa Cruz, and a B.A. in geology and studio art from Smith College. Follow Christiansen on Bluesky @jenchristiansen.com

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