Active-passive microwave remote sensing data combination for retrieval of soil moisture

Min-lu Zhou; Ze-qun Guan

doi:10.1117/12.912598

24 October 2011 Active-passive microwave remote sensing data combination for retrieval of soil moisture

Min-lu Zhou, Ze-qun Guan

Proceedings Volume 8286, International Symposium on Lidar and Radar Mapping 2011: Technologies and Applications; 82861S (2011) https://doi.org/10.1117/12.912598
Event: International Symposium on Lidar and Radar Mapping Technologies, 2011, Nanjing, China

Abstract

Microwave remote sensing has become an important way of soil moisture retrieval because of its better penetration into vegetation and soil layers, and its higher sensitivity to the content of soil moisture. Retrieval by active or passive method has a series of mature algorithms, and the combined active-passive methods are the recent research highlights. But the existing combined algorithms are not mature enough, with their weaker applicability and lower accuracy. This study aims to solve the problem of low accuracy, and proposes a new algorithm: based on the imitation of water-cloud model and IEM model, with a BP neural network, obtaining its own sensitive surface parameters from active and passive microwave remote sensing data, and developing a new combined active-passive retrieval model for soil moisture. Finally with testing and verifying in SMEX02 experiments, the model presented the results of higher accuracy.

Citation Download Citation

Min-lu Zhou and Ze-qun Guan "Active-passive microwave remote sensing data combination for retrieval of soil moisture", Proc. SPIE 8286, International Symposium on Lidar and Radar Mapping 2011: Technologies and Applications, 82861S (24 October 2011); https://doi.org/10.1117/12.912598

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