Automatic measurement of magnetic records on photographic paper

J. J. Curto, E. Sanclement, J. M. Torta

Research output: Indexed journal article Articlepeer-review

5 Citations (Scopus)


Measuring and storing magnetometer data recorded photographically is a difficult problem for a geomagnetic observatory. In the Ebre Observatory, to overcome the problem, we have developed a system using modern computing advances which include electronic scanning, storage on CD-ROM media, and image analysis. This paper describes the main processes performed by this system. In particular, it describes the main difficulties found in the process of digitization (intersections, gaps, . . .) and how they were solved.

Original languageEnglish
Pages (from-to)359-368
Number of pages10
JournalComputers and Geosciences
Issue number4
Publication statusPublished - May 1996
Externally publishedYes


  • C
  • Digitization
  • Geomagnetic instrumentation
  • Geomagnetism
  • Variometric magnetograph


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