Dong L. Wu, Ph.D.

Dong L. Wu, Ph.D. is the Project Scientist of NASA’s Total and Spectral Solar Irradiance Sensor missions and the Subject Matter Expert for GNSS-RO at Goddard Space Flight Center.

Figure 1: GPSJAM map on March 23, 2024. The map is based on GPS accuracy reports fron aircraft broadcast digital radio messages (ADS-B) over a 24-h period. A vast (uncolored) area on the globe is not covered because of no ADS-B report. Arcs are drawn over part of Europe and the eastern Mediterranean to help visualize the cone of the interference coming from potential jamming power sources. (Photo: GPSJAM.org)

May 24, 2024

Innovation: Recent GPS jamming in regions of geopolitical conflict

Figure 1: Scientific observations with GNSS radio occultation (GNSS-RO), GNSS grazing-angle reflectometry (GNSS-GR) and GNSS reflectometry (GNSS-R) techniques from low-Earth orbit (LEO). (Figure provided by the author)

March 13, 2024

Research Report: A Black Hole in Earth science