![A headshot of Christian Spallone. (Image credit: Courtesy of Christian Spallone) A headshot of Christian Spallone.](/sites/default/files/styles/square_width_325/public/2023-07/Spallone_Christian.jpeg?h=9fbf8245&itok=vng0Wrqg)
Christian Spallone
Atmospheric Science
Penn State University Park
An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock () or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.