Journal of The Remote Sensing Society of Japan
Online ISSN : 1883-1184
Print ISSN : 0289-7911
ISSN-L : 0289-7911
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Volume 32, Issue 2
Displaying 1-12 of 12 articles from this issue
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Foreword
Paper
  • Development of the Method to Estimate Light Environment on Forest FloorUsing 3D Portable Laser Scanner and Radiative Transfer Model
    Masayasu MAKI, Atsuhiro TAKAHASHI, Tetsuo OKANO, Hiroyuki OGUMA
    2012 Volume 32 Issue 2 Pages 77-87
    Published: April 20, 2012
    Released on J-STAGE: November 01, 2012
    DOIhttps://doi.org/10.11440/rssj.32.77
    JOURNAL FREE ACCESS
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    In recent years, forests have very important roles from the viewpoint of the global warming and biodiversity. However, poorly-managed forests are increasing with decay of forest industry and decrease in forest managers. Therefore, an efficient management of forest is required. As the one of the index to evaluate forest condition, the light environment on forest floor is considered. The light environment on forest floor means the distribution of photosythetically active radiation that reaches to forest floor. Forest Light Environmental Simulator (FLiES), a kind of radiative transfer model, is useful to estimate the light environment on forest floor. To execute FLiES, some parameters of forest structure are required. 3D portable laser scanner has been often used to estimate forest structure. This study developed the method to estimate the light environment on forest floor using 3D portable laser scanner data and radiative transfer model. As the result, although it was difficult to estimate the absolute light intensity on forest floor, relative light intensity on forest floor could be estimated with a high degree of accuracy. This study was able to indicate that the proposed method had potential to estimate the light condition on forest floor.
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Review
  • Step Forward to the Next Earth Observation Satellite Systems in JAXA
    Tamotsu IGARASHI
    2012 Volume 32 Issue 2 Pages 88-96
    Published: April 20, 2012
    Released on J-STAGE: November 01, 2012
    DOIhttps://doi.org/10.11440/rssj.32.88
    JOURNAL FREE ACCESS
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    Japan Aerospace Exploration Agency (JAXA) is making final preparation for the launch of GCOM-W1 “Shizuku” in JFY2012, which is the first satellite for the Global Change Observation Mission (GCOM). In this paper, the next earth observation satellite systems which will be launched in coming 5 years; 2012-2016, GCOM-W1, ALOS-2, GPM, GCOM-C1, EarthCARE in phase C and D for the system development and manufacturing, and ALOS-3 and GOSAT-2 in phase A for the mission definition study and system concept design are reviewed from the view point of their mission, sensor, data and potential applications.
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Laboratory Introduction
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