SPATIAL AND TEMPORAL MAPPING OF SOIL MOISTURE CONTENT WITH POLARIMETRIC RADARSAT 2 SAR IMAGERY IN THE ALPINE AREA

被引：2
|
作者：
Pasolli, Luca [1 ,2 ]
Notarnicola, Claudia [2 ]
Bruzzone, Lorenzo [1 ]
Bertoldi, Giacomo [3 ]
Niedrist, Georg [3 ]
Tappeiner, Ulrike [3 ]
Zebish, Marc [2 ]
Del Frate, Fabio [4 ]
Laurin, Gaia Vaglio [4 ]
机构：
[1] Univ Trento, Dep Informat Engn & Comp Sci, Via Sommarive 14, I-38123 Trento, Italy
[2] EURAC Res, Inst Appl Remote Sensing, I-39100 Bolzano, Italy
[3] EURAC Res, Inst Alpine Environm, I-39100 Bolzano, Italy
[4] Univ Roma Tor Vergata, Dept Comp Syst & Product Engn, I-00133 Rome, Italy
来源：
2011 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS) | 2011年
关键词：
Remote Sensing; biophysical parameters; estimation; Synthetic Aperture Radar (SAR); soil moisture;
D O I：
10.1109/IGARSS.2011.6049380
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this work, fully polarimetric RADARSAT2 SAR images and advanced feature extraction strategies are investigated for improving the retrieval of soil moisture content in Alpine meadows and pastures. More in detail, standard Intensity & Phase polarimetric features, polarimetric decompositions and general purpose feature extraction strategies are exploited in combination with a sequential forward selection to increase the accuracy of the system. The capability of the system to provide spatially and temporally distributed estimates of soil moisture is also addressed by using different satellite acquisitions. The achieved results indicate that the polarimetric information in the SAR data, if properly exploited, allows one to improve the estimation of soil moisture content in the investigated mountain area. Concerning the mapping of the target variable, the analysis of the results suggest that the proposed estimation system is promising and effectively maps the soil moisture status both in time and space.
引用
收藏
页码：1067 / 1070
页数：4
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