Influence of forest disturbances on backscatter of the airborne L-band synthetic-aperture radar in a larch forest in northern Japan
スポンサーリンク
概要
- 論文の詳細を見る
This paper is a case study on the detection of forest disturbances in airborne synthetic-aperture radar (SAR) data. We investigated changes in the L-band SAR backscattering coefficient (σ0) following thinning and a typhoon in a larch forest in northern Japan. The thinning caused changes of intermediate magnitude in the above-ground biomass (AGB), whereas the typhoon broke or uprooted most of the trees, thereby significantly changing the forest structure without changing the biomass. Thinning led to back-scattering coefficients change of less than about 1 dB; HV polarization was most sensitive to the change in AGB, and HH was insensitive to it. In the case of the typhoon, VV was sensitive to the change in forest structure, whereas HH and HV were insensitive to it, suggesting that the tree trunks, which were felled in one direction by the typhoon, enhanced the backscattering signal of the polarisation that accorded with the trunk direction.
論文 | ランダム
- 計算力学に関する第2回アジア-太平洋会議報告
- 2251.シールドと山岳トンネル工法の境界を目指すトンネル工法の開発(シールドトンネル)
- Studies on the Constituents of the Japanese Mistletoe, Viscum album L. var. coloratum OHWI Grown on Different Host Trees
- Studies on Chemical Constituents of Antitumor Fraction from Periploca sepium. V. : Structures of New Pregnane Glycosides, Periplocosides J, K, F and O
- 抗腫瘍活性天然薬物の探索 : 特に高等植物を中心にして