Geoinformatics
Online ISSN : 1347-541X
Print ISSN : 0388-502X
ISSN-L : 0388-502X
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Volume 16, Issue 4
Displaying 1-3 of 3 articles from this issue
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Development of System and Software
  • Development of Data Origination Program "Georiginer"to Estimate Geological Boundary Surfaces Based on Imaged Data
    Atsushi KAJIYAMA, Nobuyuki IKAWA, Kiyoji SHIONO
    Article type: Development of System and Software
    2005 Volume 16 Issue 4 Pages 225-234
    Published: 2005
    Released on J-STAGE: February 28, 2006
    DOIhttps://doi.org/10.6010/geoinformatics.16.225
    JOURNAL FREE ACCESS
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    Logical model of geological structure is expressed logical relation between boundary surfaces and geologic bodies. By using this logical relation, we can give a constraint to data in order to estimate geological boundary surfaces from the distribution position of geologic body. In this present research, we developed the data origination program "Georiginer" to estimate the geological boundary surface using this character of logical model of geological structure. This program can make the data for estimating the boundary surface from data distribution map, logical model of geological structure data, point data and strike & dip data corresponding to each point.
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  • Mass Balance Calculator coded in Java
    Akira TSUNE
    Article type: Development of System and Software
    2005 Volume 16 Issue 4 Pages 235-242
    Published: 2005
    Released on J-STAGE: February 28, 2006
    DOIhttps://doi.org/10.6010/geoinformatics.16.235
    JOURNAL FREE ACCESS
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    A software of mass balance calculation for petrologists was coded in Java. This paper described outline and usage of the program in addition to verification of the calculation. The program was enabled to evaluate validity of a mass balance model for crystallization differentiation, consisting of chemical compositions of two volcanic rocks and the rock-forming minerals. This software could calculate plausible relative proportions of the chemical compositions in the rocks due to crystallization differentiation, using least-squares method. The validity of the model could be judged by (1) sum of squares of the residuals (SSR) and (2) root mean square of the residuals per a component (RMSR).
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  • Development of Topographic Map Provision System Using Web
    Construction of Marine Web GIS and Opening of Topographic Mapping Website
    Kana NAKAMOTO, Masatoshi AKIYAMA, Tadashi MASHUYAMA
    Article type: Development of System and Software
    2005 Volume 16 Issue 4 Pages 243-250
    Published: 2005
    Released on J-STAGE: February 28, 2006
    DOIhttps://doi.org/10.6010/geoinformatics.16.243
    JOURNAL FREE ACCESS
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    Topographic mapping using a computer is not easy because it needs the knowledge of numerical data and high speed computer. We developed a 2D and 3D topographic map provision system using web, which applied the numeric data sets J-EGG500, GTOPO30, ETOPO2 and TerrainBase and used of three servers (Web Server, MATLAB Web Server and Application Server).
    As a result, we can make a topographic mapping website that can make 2D, 3D mapping with a few parameters such as the latitude and longitude of the mapping area.
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