A passive Distributed Temperature Sensing approach to large-scale soil moisture validation

摘要: To validate the observations from SMOS, in-situ measurements must be made over a wide variety of soil and land cover types. In recent years, Distributed Temperature Sensing (DTS) has been used in applications including estimating seepage polders, to measuring flow into streams. Active DTS, which cables observe response heat pulse, successfully measure moisture several studies. The objective this study was investigate potential passive as relatively portable, inexpensive alternative approach on large-scale.