1. Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, CO, USA
2. Global Monitoring Division, Earth System Research Laboratory, National Oceanic and Atmospheric Administration,Boulder, CO, USA
3. AECOM, Austin, TX, USA
4. Kairos Aerospace, Mountain View, CA, USA
5. Department of Land, Air, and Water Resources, University of California, Davis, CA, USA
6. Scientific Aviation, Inc, Boulder, CO, USA
7. Southwestern Energy Company, Spring, TX, USA
8. Consultant to XTO Energy Inc., Fort Worth, TX, USA
9. ExxonMobil Upstream Research Co, Spring, TX, USA