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The department and CIRA jointly host weekly colloquia held Thursday afternoons in ATS 101 (the large classroom of the main building). Beverages are served at 2:45 p.m. in the weather lab (ATS 105), and the presentation begins at 3 p.m. The department also hosts other seminars generally announced on the associated mailing list. You can subscribe to the list by sending a message to using "subscribe colloquium" as the subject.

If you would like to invite a speaker, please first read the colloquium guide for hosts and check this page for available dates. Contact Michael Bell ( or Christine Chiu ( with questions. The faculty member hosting the speaker arranges the speaker's visit schedule. This visit schedule template is available should you choose to use it.

Upcoming Colloquia

October 24, 2019 Climate impact of anthropogenic aerosols on large-scale cirrus clouds
Joyce E. Penner and Jialei Zhu from University of Michigan
Hosted by Sonia Kreidenweis
October 25, 2019 “Young Scientist Symposium on Atmospheric Research (YSSAR)”
Hosted by ATS graduate students
November 6, 2019 at 1:30 pm Title to be announced
Aneesh Subramanian from University of Colorado, Boulder
Hosted by David Randall
November 7, 2019 Title to be announced
Greg Poulos
Hosted by Michael Bell and Jeff Collett
November 14, 2019 Title to be announced
Clara Deser from NCAR Climate and Global Dynamics Division
Hosted by Jim Hurrell
November 21, 2019 Title to be announced
Anthony Didlake from Penn State University
Hosted by Michael Bell
December 5, 2019 Title to be announced
Chun-Chieh Wu from National Taiwan University
Hosted by Michael Bell
February 6, 2020 Title to be announced
Owen Cooper from CIRES/NOAA
Hosted by Emily Fischer
March 12, 2020 Title to be announced
Brian Ancell from Texas Tech University
Hosted by Russ Schumacher

Past Colloquia

2019 Spring Fall
2018 Spring Fall
2017 Spring Fall
2016 Spring Fall
2015 Spring Fall
2014 Spring Fall
2013 Spring Fall
2012 Spring Fall
2011 Spring Fall
2010 Spring Fall
2009 Spring Fall
2008 Spring Fall
2007 Spring Fall