Results 1 - 5 of 5 (Sorted by date)
Peer-reviewed Article
In ISPRS International Journal of Geo-Information
Author:
Saeid
Gharechelou
Ryutaro
Tateishi
Josaphat
Sumantyo

Soil moisture is a critical component for Earth science studies, and Synthetic Aperture Radar (SAR) data have high potential for retrieving soil moisture using backscattering models. In this study, polarimetric SAR (PALSAR: Phased Array type L-band Synthetic Aperture Radar) data and polarimetric decompositions including span, entropy/H/alpha, and...

Commissioned Report

平成29 年5 月に「合法伐採木材等の流通及び利用の促進に関する法律」(通称「クリーンウッド法」)が施行された。また、平成29 年11 月から、同法に基づく木材関連事業者の登録が開始された。
このような背景の中、木材関連事業者による木材等の合法性確認等の取組を一層推進するため、本事業が実施された。本事業の目的は、木材関連事業者が効率的に木材等の合法性確認等の取組を実施できるよう、生産国における木材の流通や関連法令に関する情報を収集することである。
調査対象国は、パプアニューギニア、ソロモン諸島、ロシア、ベトナム、中国の計5カ国であり、それぞれの国において木材流通状況、関連法令・許認可制度、その他参考情報等が収集された。

Peer-reviewed Article
In Land
Author:
Saeid
Gharechelou
Ryutaro
Tateishi

In this study, we measured and characterized the relative dielectric constant of mineral soils over the 0.3–3.0 frequency range, and compared our measurements with values of three dielectric constant simulation models (the Wang, Dobson, and Mironov models). The interrelationship between land cover and soil texture with respect to the dielectric...

Peer-reviewed Article
In Remote Sensing
Author:
Saeid
Gharechelou
Ryutaro
Tateishi

Generally, the characterization of land surface roughness is obtained from the analysis of height variations observed along transects (e.g., root mean square (RMS) height, correlation length, and autocorrelation function). These surface roughness measurements are then used as inputs for surface dynamics modeling, e.g., for soil erosion modeling...

Peer-reviewed Article
In Remote Sensing
Author:
Hossein
Vahidi
Brian
Klinkenberg
L. Monika
Moskal
Wanglin
Yan

This paper presents a collective sensing approach that integrates imperfect Volunteered Geographic Information (VGI) obtained through Citizen Science (CS) tree mapping projects with very high resolution (VHR) optical remotely sensed data for low-cost, fine-scale, and accurate mapping of trees in urban orchards. To this end, an individual tree crown...