Dependency of forest biomass on full Polarimetric parameters obtained from L-band SAR data for a natural forest in Indonesia

Author

Watanabe, Manabu ; Motohka, Takeshi ; Shiraishi, Tomohiro ; Thapa, Rajesh Bahadur ; Kawano, Namiko ; Shimada, Masanobu

Author_Institution

Japan Aerosp. Exploration Agency (JAXA), Tsukuba, Japan

fYear

2013

fDate

21-26 July 2013

Firstpage

3919

Lastpage

3922

Abstract

Aboveground (AG)-biomass was estimated from a field biomass collection and LiDAR observations for a natural forest in Indonesia. The derived AG-biomass data were plotted against full polarimetric parameters calculated from Polarimetric and Interferometric Airborne Synthetic Aperture Radar L2 (Pi-SAR-L2) and PALSAR data. The α°-AG-biomass curve shows saturation by around 100 tons/ha, while for entropy, correlation is observed up to 200 tons/ha. The largest coefficient of determination (R² = 0.2348) was observed for the range with AG-biomass of more than 100 tons/ha for the relation between AG-biomass and entropy. The α°_HV-biomass plot derived from PALSAR data shows smaller variance in the dry season than in other seasons, indicating that dry season data is preferable for a more accurate estimate of AG-biomass.

Keywords

remote sensing by laser beam; remote sensing by radar; synthetic aperture radar; vegetation; Indonesia; L-band SAR data; LiDAR observations; PALSAR data; Pi-SAR-L2 data; Polarimetric and Interferometric Airborne Synthetic Aperture Radar L2; aboveground-biomass curve; aboveground-biomass data; determination coefficient; field biomass collection; forest biomass; natural forest; polarimetric parameters; Abstracts; Biomass; Laser radar; Radiometry; L-band SAR; REDD+;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium (IGARSS), 2013 IEEE International

Conference_Location

Melbourne, VIC

ISSN

2153-6996

Print_ISBN

978-1-4799-1114-1

Type

conf

DOI

10.1109/IGARSS.2013.6723689

Filename

6723689