Due to the relatively limited number of available Low Earth Orbit (LEO)  occultation satellites, the sampling in a region of specific interest is still rather sparse, and it is difficult to acquire a series of profiles that are sequential in time for a desired period. RO measurements with a GPS receiver onboard an airplane offer the opportunity of rather dense sampling contiguous in space and time, while retaining a high vertical resolution sounding capability which could greatly facilitate studies of regional weather and climate (Xie et al., TGRS, 2008).

Co-Principal-Investigator: National Science Foundation (NSF)/Climate and Large Scale Dynamics Program: “Collaborative Research: Investigating the characteristics of lower tropospheric airborne GPS radio occultation observations and their impact in hurricane studies”, NSF 09-29, 2010-2013.