A forum for scientific discussion of optical phenomena in the atmosphere and the natural environment,
sponsored by the Optical Technology Center at Montana State University in Bozeman, Montana.

This international meeting attracts scientists from around the world who love to observe and explain optical phenomena in their natural environment. It began and continues because these people enjoy getting together to learn from and share with each other. Here is a brief outline of the meeting history:

1) Meteorological Optics                                            August 28-29, 1978            Keystone, Colorado            coordinated by David Lynch
2) Atmospheric Optics                                               January 3-5, 1983               Incline Village, Nevada         coordinated by William Mach & Alister Fraser
3) Meteorological Optics                                            April 2-3, 1986                   Honolulu, Hawaii                 coordinated by David Lynch
4) Light & Color in the Open Air                                July 11-13, 1990                 Washington, D.C.                coordinated by Robert Greenler
5) Light & Color in the Open Air                                June 16-18, 1993                State College, Pennsylvania  coordinated by Craig Bohren
6) Light & Color in the Open Air                                February 10-12, 1997         Santa Fe, New Mexico        coordinated by Ken Sassen
7) Meteorological Optics                                            June 6-8, 2001                    Boulder, Colorado               coordinated by Stanley Gedzelman
8) Atmospheric/Meteorological Optics                        June 13-17, 2004                Bad Honnef, Germany         coordinated by Michael Vollmer
9) Light & Color in Nature                                         June 25-29, 2007                 Bozeman, Montana             coordinated by Joseph Shaw
10) ???