Trial biomass map production in Riau Province, Indonesia using L-band SAR data

被引：0
|
作者：
Watanabe, Manabu [1 ]
Motohka, Takeshi [1 ]
Thapa, Rajesh Bahadur [1 ]
Shiraishi, Tomohiro [1 ]
Shimada, Masanobu [1 ]
机构：
[1] Japan Aerosp Explorat Agcy JAXA, Earth Observat Res Ctr, Tsukuba, Ibaraki 3058505, Japan
来源：
CONFERENCE PROCEEDINGS OF 2013 ASIA-PACIFIC CONFERENCE ON SYNTHETIC APERTURE RADAR (APSAR) | 2013年
关键词：
FOREST;
D O I：
暂无
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：
Biomass maps were produced from PALSAR data using two methods. Method 1 used land-cover classification results derived from PALSAR multi-temporal mosaic images. The average biomass value for a class was regarded as a representative biomass value for the class, and these were assigned to each respective class. Method 2 used the correlation between radar backscattering (gamma(0)(HV)) and forest aboveground biomass (AG-biomass). The RMSEs of the biomass estimation for method 2 were between 59.1 and 79.4, depending on the LiDAR-biomass model. These values are smaller than 99.1, which is the estimate from a simple average (method 1). This indicates that the variety of biomass within a natural forest class is correctly evaluated with method 2 by using the gamma(0)(HV)-(AG-biomass) relation. The gamma(0)(HV)-(AG-biomass) relation is useful for accurately estimating biomass, especially for a region in which biomass is less than 100 t/ha.
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页码：152 / 155
页数：4
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