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1987 Fiscal Year Final Research Report Summary

Processing system of degital elevation data for geomorphological research

Research Project

Project/Area Number 60460237
Research Category

Grant-in-Aid for General Scientific Research (B)

Allocation TypeSingle-year Grants
Research Field 自然地理学
Research InstitutionTokyo Metropolitan University

Principal Investigator

NOGAMI Michio  Professor of Physical Geography Faculty of Science Tokyo Metropolitan University, 理学部, 教授 (50087144)

Co-Investigator(Kenkyū-buntansha) IMAIZUMI Toshifumi  Lecturer of Geomorphology Faculty of Science Tokyo Metropolitan University, 理学部, 助手 (50117694)
Project Period (FY) 1985 – 1987
KeywordsDegital Elevatin Model / DEM / DTM / Data Processing system / Morphometry
Research Abstract

In order for Digital Eleveation Model in "Digital National Land Information" prepared by Geographical Survey Institute, to be useful in geomorphological study, following procedures and algorithms were discussed. And a processing system of DEM was built using a personal computer and peripherals.
1) data acquisition from the national DEM, 2) editing for DEM, 3) elevation estimation for data failure grids and inland water surace without elevation data. 4) change of grid aperture, 5) calculation of local geomorphological characteristics, 6) calculation of statistic parameters in small quadrangle, 7) calculation of areal statistics of parameters of baove items 5 and 6. 8) contouring of DEM, 9) composition of drainage system and calculation of drainage area. 10) display and output of DEM.
Following procedures ate also treated as additional functions.
A) transformation to shaded raster map, B) raster contouring, C) contouring of irregularly spaced data, D) Affin transformation of DEM for overlay to satellite image, E) transformation of stereo pair, F) display of satelite image.
The programs of the system are coded mainly in C by reason of rapid I/O of the large files of DEM, but BASIC is also used for coveniences in graphics.

  • Research Products

    (12 results)

All Other

All Publications (12 results)

  • [Publications] 野上道男: 「地形」. 6. 245-264 (1986)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 野上道男: 地理「ジオ・グラフィックス」. 31. 16-26 (1986)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 野上道男: 地理「ジオ・グラフィックス」. 31. 44-52 (1986)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 野上道男: 数理地理学演習. 275 (1986)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 山口岳志: 昭和61年度科学研究費成果報告書国土情報利用の高度化に関する研究, 「地形計測のアルゴリズム」. 147 (1987)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 山口岳志: 昭和62年度科学研究費成果報告書国土情報利用の高度化に関する研究, 「数値地図による地形計測システムについて」. (1988)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Nogami, M.: "Recent trend and fundamental conditions of geographical data processing." Geographical Journal Tokyo. 94 (7). 581-585 (1985)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Nogami. M.: "A processing system for digital terrain analysis." Transactions, Japanese Geomorphological Union. 6 (3). 245-264 (1985)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Nogami, M.: "Data processing system of DEM in "Digital National Land Information"." Tiri (Kokon-shoin). special issue of Vol.31. 16--26 (1986)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Nogami.M.: "Data processing of MSS image of Landsat." Tiri (Kokon-shoin). special issue of Vol.31. 44--52 (1986)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Nogami, M.: Kokon-shoin. Practical Mathematic Geograpy, 275 (1986)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Nogami, M.: Algorithms for procedures of morphometry. in "Reaserch on Intensive Utilization of Geographic Information" ed. by Prof. T. Yamaguchi, University of Tokyo,

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 1989-03-30  

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