Dr. Klein earned a Diploma (1993) in Physics and PhD in Civil Engineering (1999) degrees from the University of Karlsruhe. From 1999 to 2000 she was a Post-Doc at ETH in Zurich, Switzerland where she worked on the European Project TRAPOS that focused on the disperions of tarddic emissions in street canyons. She moved to Norman, OK in January 2001 to take a position as Visiting Assistant Professor in Civil Engineering and Environmental Science at the Univeristy of Oklahoma before she joined the School of Meteorology as tenure-track faculty member in 2002.