1. GATS Inc. Boulder Colorado USA
2. Aerospace Engineering Science University of Colorado Boulder Boulder Colorado USA
3. Center for Atmospheric and Space Sciences Utah State University Logan Utah USA
4. Institute of Atmospheric Physics German Aerospace Center Oberpfaffenhofen Germany
5. School of Physical Sciences University of Adelaide Adelaide South Australia Australia
6. ATRAD Pty Ltd. Thebarton South Australia Australia
7. Australian Antarctic Division Department of the Environment Kingston Tasmania Australia