P-Band Signals of Opportunity for Remote Sensing of Root Zone Soil Moisture
- Resource Type
- Conference
- Authors
- Yueh, Simon H.; Xu, Xiaolan; Shah, Rashmi; Margulis, Steve; Elder, Kelly
- Source
- IGARSS 2018 - 2018 IEEE International Geoscience and Remote Sensing Symposium Geoscience and Remote Sensing Symposium, IGARSS 2018 - 2018 IEEE International. :1403-1406 Jul, 2018
- Subject
- Aerospace
Computing and Processing
Fields, Waves and Electromagnetics
Geoscience
Photonics and Electrooptics
Signal Processing and Analysis
Soil moisture
Remote sensing
Reflectivity
Soil measurements
Global navigation satellite system
Moisture
Soil Moisture
Reflectometry
- Language
- ISSN
- 2153-7003
The P-band Signals of Opportunity (SoOp) technique has significant potential for remote sensing of root zone soil moisture from space. We have conducted a proof-of-concept experiment to demonstrate the sensitivity of P-band reflectivity to soil moisture. The reflectivity data has a high correlation (~0.87) with the in situ soil moisture observations. Theoretical forward modeling and retrieval analyses have been carried out to assess the accuracy of using multifrequency SoOp data to retrieve the vertical soil moisture profile. Sensitivity analysis has also been carried out to determine the impact of ancillary data.