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

fYear

2012

fDate

22-27 July 2012

Firstpage

658

Lastpage

661

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium (IGARSS), 2012 IEEE International

Conference_Location

Munich

ISSN

2153-6996

Print_ISBN

978-1-4673-1160-1

Electronic_ISBN

2153-6996

Type

conf

DOI

10.1109/IGARSS.2012.6351508

Filename

6351508