論文

2015年12月

A new 500-m resolution map of canopy height for Amazon forest using spaceborne LiDAR and cloud-free MODIS imagery

INTERNATIONAL JOURNAL OF APPLIED EARTH OBSERVATION AND GEOINFORMATION
  • Yoshito Sawada
  • Rempei Suwa
  • Keiji Jindo
  • Takahiro Endo
  • Kazuo Oki
  • Haruo Sawada
  • Egidio Arai
  • Yosio Edemir Shimabukuro
  • Carlos Henrique Souza Celes
  • Moacir Alberto Assis Campos
  • Francisco Gasparetto Higuchi
  • Adriano Jose Nogueira Lima
  • Niro Higuchi
  • Takuya Kajimoto
  • Moriyoshi Ishizuka
  • 全て表示

43
開始ページ
92
終了ページ
101
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1016/j.jag.2015.04.003
出版者・発行元
ELSEVIER SCIENCE BV

In the present study, we aimed to map canopy heights in the Brazilian Amazon mainly on the basis of spacebome LiDAR and cloud-free MODIS imagery with a new method (the Self-Organizing Relationships method) for spatial modeling of the LiDAR footprint. To evaluate the general versatility, we compared the created canopy height map with two different canopy height estimates on the basis of our original field study plots (799 plots located in eight study sites) and a previously developed canopy height map. The compared canopy height estimates were obtained by: (1) a stem diameter at breast height (D)- tree height (H) relationship specific to each site on the basis of our original field study, (2) a previously developed D-H model involving environmental and structural factors as explanatory variables (Feldpausch et al., 2011), and (3) a previously developed canopy height map derived from the spacebome LiDAR data with different spatial modeling method and explanatory variables (Simard et al., 2011). As a result, our canopy height map successfully detected a spatial distribution pattern in canopy height estimates based on our original field study data (r=0.845, p = 8.31 x 10(-3)) though our canopy height map showed a poor correlation (r= 0.563, p =0.146) with the canopy height estimate based on a previously developed model by Feldpausch et al. (2011). We also confirmed that the created canopy height map showed a similar pattern with the previously developed canopy height map by Simard et al. (2011). It was concluded that the use of the spaceborne LiDAR data provides a sufficient accuracy in estimating the canopy height at regional scale. (C) 2015 Elsevier B.V. All rights reserved.

リンク情報
DOI
https://doi.org/10.1016/j.jag.2015.04.003
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000362144000008&DestApp=WOS_CPL
ID情報
  • DOI : 10.1016/j.jag.2015.04.003
  • ISSN : 0303-2434
  • eISSN : 1872-826X
  • Web of Science ID : WOS:000362144000008

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