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The department and CIRA jointly host weekly colloquia held Friday mornings in room 101 (large classroom) of the main building. Refreshments are served at 10:45 a.m. in the weather lab (room 105 ATS) with the presentation starting at 11:15 a.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 (, Christine Chiu (, or Torrie Moss ( with questions. Here is a template for a visit schedule for speakers.

Upcoming Colloquia

November 16, 2018 Watching the Earth Breathe from Space: The OCO-2 and OCO-3 missions
Annmarie Eldering from NASA/JPL
Hosted by Chris Kummerow
November 30, 2018 Title to be announced
Robert Pincus from NOAA/ESRL Physical Sciences Division
Hosted by Christine Chiu
December 7, 2018 “ATS 2018 Outstanding Alum Award”
Hosted by Jeff Collett
January 25, 2019 Title to be announced
Johnny Luo from City University of New York
Hosted by Sue van den Heever
February 22, 2019 Title to be announced
Kerri Pratt from University of Michigan
Hosted by Jeff Collett

Past Colloquia

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