Title :
A new method for estimation of bare surface soil moisture with L-band radiometer
Author :
Guo, Peng ; Shi, Jiancheng ; Du, Jinyang ; Liu, Qiang
Author_Institution :
State Key Lab. of Remote Sensing Sci., Beijing Normal Univ., Beijing, China
Abstract :
This study demonstrates a technique of estimating soil moisture using the L-band dual-polarization measurements and no soil roughness information. The development is based on the analysis of the simulated database using Advanced Integral Equation Model (AIEM) under SMAP sensor configurations. Through analyzing the current surface emission models the Hp model was selected as the basic model for development. The inversion technique is validated with both simulated data and ground experimental data. The inversion accuracy with RMSE (root-mean-square error) for simulated data and ground experimental data is 1.4% and 3.6%, respectively, which can meet the requirement of SMAP (soil moisture active and passive).
Keywords :
hydrological techniques; soil; Advanced Integral Equation Model; L-band dual-polarization measurements; L-band radiometer; SMAP sensor configurations; bare surface soil moiture; root-mean-square error; simulated database analysis; soil roughness information; surface emission models; Land surface; Mathematical model; Microwave radiometry; Rough surfaces; Sea surface; Soil moisture; Surface roughness; L-band radiometer; SMAP; passive microwave; soil moisture;
Conference_Titel :
Geoscience and Remote Sensing Symposium (IGARSS), 2012 IEEE International
Conference_Location :
Munich
Print_ISBN :
978-1-4673-1160-1
Electronic_ISBN :
2153-6996
DOI :
10.1109/IGARSS.2012.6351508
