Abstract:

Remote sensing techniques that use radio signals transmitted by global navigation satellite systems (GNSSs) have evolved into a robust global observing system. The radio occultation (RO) technique tracks GNSS signals as they traverse through Earth’s ionosphere and neutral atmosphere using a receiver onboard a low-Earth orbiting satellite. The RO measurements can be inverted to yield information about water vapor and temperature in the neutral atmosphere and electron density in the ionosphere.

In this presentation, we will introduce the GNSS RO measurement technique and discuss the application of RO observations to weather prediction, climate monitoring, and space weather forecasting.

Dr. Bill Kuo, Director of UCAR Community Programs, will introduce the radio occultation technique and discuss the application of radio occultation data to the prediction of tropical cyclones and convective systems.

Dr. John Braun, Deputy Director of UCAR COSMIC Program, will discuss the application of radio occultation data to climate monitoring and space weather forecasting.