Dr. Wu’s research is focused on remote sensing of clouds with mm- and submm-wave radiometry and polarimetry, multi-platform stereoscopic technique for atmospheric motion vectors (AMVs) and cloud/aerosol top heights, and Sun-Climate connection. His research interest also includes GNSS radio occultation techniques for planetary boundary layer (PBL), E-region electron density, Zeeman measurement of geomagnetic field, and 2-THz sounding for thermospheric winds and oxygen density.