Retrieval of vegetation height in rice fields using polarimetric SAR interferometry with TanDEM-X data

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Títol: Retrieval of vegetation height in rice fields using polarimetric SAR interferometry with TanDEM-X data
Autors: Lopez-Sanchez, Juan M. | Vicente-Guijalba, Fernando | Erten, Esra | Campos-Taberner, Manuel | Garcia-Haro, Francisco Javier
Grups d'investigació o GITE: Señales, Sistemas y Telecomunicación
Centre, Departament o Servei: Universidad de Alicante. Departamento de Física, Ingeniería de Sistemas y Teoría de la Señal | Universidad de Alicante. Instituto Universitario de Investigación Informática
Paraules clau: Agriculture | TanDEM-X | Rice | Synthetic aperture radar (SAR) | PolSAR | Interferometry | PolInSAR | Vegetation height
Àrees de coneixement: Teoría de la Señal y Comunicaciones
Data de publicació: d’abril-2017
Editor: Elsevier
Citació bibliogràfica: Remote Sensing of Environment. 2017, 192: 30-44. doi:10.1016/j.rse.2017.02.004
Resum: This work presents for the first time a demonstration with satellite data of polarimetric SAR interferometry (PolInSAR) applied to the retrieval of vegetation height in rice fields. Three series of dual-pol interferometric SAR data acquired with large baselines (2–3 km) by the TanDEM-X system during its science phase (April–September 2015) are exploited. A novel inversion algorithm especially suited for rice fields cultivated in flooded soil is proposed and evaluated. The validation is carried out over three test sites located in geographically different areas: Sevilla (SW Spain), Valencia (E Spain), and Ipsala (W Turkey), in which different rice types are present. Results are obtained during the whole growth cycle and demonstrate that PolInSAR is useful to produce accurate height estimates (RMSE 10–20 cm) when plants are tall enough (taller than 25–40 cm), without relying on external reference information.
Patrocinadors: This work has been supported by the Spanish Ministry of Economy and Competitiveness (MINECO) and EU FEDER under project TIN2014-55413-C2-2-P. The research leading to these results has received funding from the European Union Seventh Framework Programme (FP7/2007–2013) under grant agreement 606983, and the Land-SAF (the EUMETSAT Network of Satellite Application Facilities) project. The in-situ measurements in the Ipsala site were conducted with the funding of The Scientific and Technological Research Council of Turkey (TUBITAK, Project No.: 113Y446).
URI: http://hdl.handle.net/10045/65090
ISSN: 0034-4257 (Print) | 1879-0704 (Online)
DOI: 10.1016/j.rse.2017.02.004
Idioma: eng
Tipus: info:eu-repo/semantics/article
Drets: © 2017 Elsevier Inc.
Revisió científica: si
Versió de l'editor: http://dx.doi.org/10.1016/j.rse.2017.02.004
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