Acknowledgments

We gratefully acknowledge the continuing support over the years from the NASA Science Mission Directorate; Earth Science Division, and especially Drs. Hal Maring, Ramesh Kakar, and Don Anderson for their encouragement. The success of the effort depends critically upon the collaborations built within the scientific community, and we are grateful for the positive discourse we have had with our colleagues.

The current NASA proposal in support of this work is:

"Ice Cloud Bulk Scattering and Absorption Models: Refinement through Intercomparison of Hyperspectral, Narrowband, and Polarization Sensors”." Funding is provided for years 2011-2013 by the NASA Science Mission Directorate; Earth Science Division (Dr. Ramesh Kakar). Co-investigators include Dr. Ping Yang (Texas A&M University) and Dr. Andrew Heymsfield (National Center for Atmospheric Research, Boulder, CO).

Previous NASA proposals in support of this work:

"Refinement of ice cloud bulk optical models: From microphysical measurements to global retrievals using multiple satellite instruments." Funding was provided for 2008-2010 by the NASA Science Mission Directorate, Earth Science Division (Dr. Hal Maring). Co-investigators included Dr. Ping Yang (Texas A&M University) and Dr. Andrew Heymsfield (National Center for Atmospheric Research, Boulder, CO).

"Regional and global analyses of multilayered clouds, ice phase clouds, and mixed phase clouds using EOS-Terra and Aqua data." Funding was provided for years 2004-2006 by the NASA Radiation Sciences Program (Dr. Hal Maring). Co-investigators included Dr. Ping Yang (Texas A&M University), Dr. Andrew Heymsfield, (National Center for Atmospheric Research, Boulder, CO), and Dr. Steve Platnick (NASA Goddard Space Flight Center.

Analysis of historical cirrus in-situ data in support of Terra, Aqua, and GIFTS cirrus retrieval efforts.” Funding was provided for years 2001-2004 by the NASA Radiation Sciences Program (Dr. Don Anderson). Co-Investigators included Dr. Ping Yang (Texas A&M University), Dr. Andrew Heymsfield (National Center for Atmospheric Research), and Dr. Steve Ackerman (University of Wisconsin-Madison).