Interferometric processing of C-band SAR data for the improvement of stand age estimation in rubber plantation

Bambang H. Trisasongko; David J. Paull; Dyah R. Panuju

doi:10.1117/12.2074773

9 January 2015 Interferometric processing of C-band SAR data for the improvement of stand age estimation in rubber plantation

Bambang H. Trisasongko, David J. Paull, Dyah R. Panuju

Author Affiliations +

Proceedings Volume 9444, International Seminar on Photonics, Optics, and Its Applications (ISPhOA 2014); 94440C (2015) https://doi.org/10.1117/12.2074773
Event: International Seminar on Photonics, Optics, and Applications 2014, 2014, Sanur, Bali, Indonesia

Abstract

Rubber ranks the second largest plantation in Indonesia after oil palm. While oil palm plantations have been exploited mainly by large companies, many rubber plantations are still managed by peasant farmers who maintain its biodiversity. Due to its broad and scattered location, monitoring tropical rubber plantation is a crucial application of active remote sensing. In this paper, the backscatter coefficient of Envisat Advanced Synthetic Aperture Radar (ASAR) is compared to interferometric coherence to study the relationship between stand age and SAR parameters. It is shown that VV polarized C-band SAR achieves its saturation level in plantations aged about 5-10 years. Extension of saturation level can be achieved by processing an interferometric pair of ASAR data, which results in interferometric coherence. In this paper, coherence can take up to 20 years stand age to achieve prior to saturation. Since stand age is highly related to biomass, this finding argues that the biomass can be best estimated using coherence.

Citation Download Citation

Bambang H. Trisasongko, David J. Paull, and Dyah R. Panuju "Interferometric processing of C-band SAR data for the improvement of stand age estimation in rubber plantation", Proc. SPIE 9444, International Seminar on Photonics, Optics, and Its Applications (ISPhOA 2014), 94440C (9 January 2015); https://doi.org/10.1117/12.2074773

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