Passive microwave soil moisture researchThe AgRISTARS Soil Moisture Project has made significant progress in the quantification of microwave sensor capabilities for soil moisture remote sensing. The 21-cm wavelength has been verified to be the best single channel for radiometric observations of soil moisture. It has also been found that other remote sensing approaches used in conjunction with L-band passive data are more successful than multiple wavelength microwave radiometry in this application. AgRISTARS studies have also improved current understanding of noise factors affecting the interpretability of microwave emission data. The absorption of soil emission by vegetation has been quantified, although this effect is less important than absorption effects for microwave radiometry.
Document ID
19860048766
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Schmugge, T. J. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Oneill, P. E. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Wang, J. R. (NASA Goddard Space Flight Center Greenbelt, MD, United States)