Remote Sensing of Soil Moisture Using Microwave Technologies and the Lastest Development of SMAP Mission

Department of Hydrology & Atmospheric Sciences
Wednesday, September 19, 2018
4:00 pm in Harshbarger 206 ~ Refreshments at 3:45 pm
Narenda Das
Jet Propulsion Laboratory
California Institute of Technology, Pasadena, USA


The lecture will introduce microwave remote sensing of soil moisture and discuss the reasons why microwave frequencies are preferred over other frequencies of the electromagnetic spectrum. Satellite-based microwave remote sensing technologies such as radiometry and radar platforms for soil moisture will also be introduced. The lecture will cover various past and current satellites using microwave technologies for measuring soil moisture. Special emphasis will be given to the NASA’s Soil Moisture Active Passive (SMAP) mission that was launched on January 31st, 2015. SMAP utilized a microwave L-band radar and L-band radiometer sharing a rotating 6-meter mesh reflector antenna to measure soil moisture at very high spatiotemporal resolution. The lecture will also talk about various soil moisture products from the SMAP mission and how to get those products to use for research and geophysical applications.