Antarctic Firn Characterization through Wideband Microwave Radiometry

Global Precipitation Measurement (GPM) constellation is utilized in this study as a single multifrequency wideband radiometer to profile subsurface properties of the Antarctic firn. Initial analyses focusing on the Concordia station in Antarctica indicate that GPM brightness temperature measurements provide important information regarding the physical and thermal properties of the firn down to a few tens of meters depth from the surface. Thus, wideband microwave radiometry provides an excellent opportunity for characterizing the Antarctic firn with broad spatiotemporal coverage.