UNIT 20 - GIS AS ARCHIVES

UNIT 20 - GIS AS ARCHIVES

  • A. INTRODUCTION
  • B. NATURE OF ARCHIVES
  • C. EXAMPLES OF SPATIAL DATA ARCHIVE SYSTEMS
  • D. FATE OF ORIGINAL ARCHIVE SYSTEMS
  • E. SPATIAL DATA ARCHIVES TODAY
  • REFERENCES
  • EXAM AND DISCUSSION QUESTIONS
  • NOTES

    This unit introduces a very special type of GIS. Although the examples discussed are older systems, the idea of archival databases is very relevant today as government agencies develop large spatial databases for public use.

    UNIT 20 - GIS AS ARCHIVES

    A. INTRODUCTION

    Archive databases

    Project databases

    B. NATURE OF ARCHIVES

    Currency of data

    Use of archives

    Data for digital archiving

    C. EXAMPLES OF SPATIAL DATA ARCHIVE SYSTEMS

    CGIS

    MIDAS

    STORET

    LUNR

    NARIS

    MLMIS

    D. FATE OF ORIGINAL ARCHIVE SYSTEMS

    Platform

    Static data

    Distribution

    User interface

    Costs vs benefits

    Development of general purpose systems

    E. SPATIAL DATA ARCHIVES TODAY

    REFERENCES

    Mounsey, H. and R.F. Tomlinson, 1988. Building Databases for Global Science, Taylor and Francis, New York. A review of the current status of global spatial data archives

    Tomlinson, R.F., D.F. Marble and H.W. Calkins, 1976. Computer Handling of Spatial Data. UNESCO Press, Paris. Compares and assesses several archival systems, including CGIS, LUNR, MLMIS.

    Wiggins, J.C., R.P. Hartley, M.J. Higgins and R.J. Whittaker, 1987. "Computing aspects of a large geographic information system for the European Community,"

    International Journal of Geographical Information Systems 1(1):77-78. A description of the Co-ordinated Information on the European Environment (CORINE) program, a multi-national natural resources GIS project.

    EXAM AND DISCUSSION QUESTIONS

    1. Review and discuss a selected state natural resource data archive, such as MLMIS, CGIS. How does the system compare with NARIS?

    2. The volume Building Databases for Global Science listed in the references contains chapters discussing a number of efforts to construct global databases. What particular problems do they present?

    3. Design a study to assess the need for a state natural resource data archive, and to evaluate its potential benefits to the user community.

    4. The unit drew a parallel between spatial databases and map libraries. Discuss the validity of this analogy, and the dangers in using it to make design decisions for spatial databases.


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