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Workreport 1997-4

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Name:

TUTKA-tiedonhallintajärjestelmän päivitys

Writer:

Ismo Lallo; Pirjo Hellä

Language:

Finnish

Page count:

79

Summary:

Working report: Lallo, I. & Hellä, P. 1997. Updating the TUTKA-data management system. Work report-97-04. Posiva
Oy, Helsinki. 76 p. (in Finnish).

ABSTRACT

Posiva Oy studies the Finnish bedrock for the final disposal of the spent nuclear fuel. Preliminary site
investigations were carried out in five areas, Kuhmo, Hyrynsalmi, Konginkangas, Sievi and Eurajoki
during 1987 - 1992. Detailed site investigations have continued at Kuhmo Romuvaara, Äänekoski
Kivetty and Eurajoki Olkiluoto sites since 1993. In the beginning of 1997 the investigations were started
also at Loviisa Hästholmen. The investigations at these four sites will continue until 2000 when the site
for final disposal of the spent nuclear fuel will be selected.

The contractors and other research organisations involved with the site investigations have delivered all
measured, interpreted or modified data also in digital form to Posiva. The contents of the data is
described in special description files. Since 1994 TUTKA data management system has been used to
store the investigation data. TUTKA contains two parts: one for retrieval of existing data from the
archive and one to inspect and store new data to the archives. The databases are based on Microsoft
Access and the actual investigation data files are stored to magneto-optical Compact Disks (MO-disks).
Before starting the use of TUTKA, the data files of the preliminary investigation phase were converted
to uniform format and stored to the MO-disks. During the detailed site investigation phase the data has
been stored immediately after the compilation of the field or interpretation work. Data has also been
retrieved from the archive for the planning of new investigations as well as for the further interpretation
work. The data archives have been backed up systematically.

As the amount of the investigation data constantly increases and the system and the media used,
especially the MO-disks, were getting old-fashioned it was inevitably to update the system. The digital
archives should remain usable until the year 2000, after that at least the data concerning the site selected
for the final disposal should be still usable. The hardware used was replaced totally by a new one, the
MO-disks were replaced by writable CD-R-disks and partly by new MO-disks. The investigation data
was transferred from the old MO-disks to the CD-R-disks. The data files from the preliminary
investigation phase were still in PC-8 format. They were converted to Windows ANSI format. The CD-
R-disks cannot totally replace the old MO-disks because they are not suitable for continuous writing. For
that purpose the new MO-disks having larger storage capacity are used. When the MO-disk is full the
data is transferred to the CD-R-disk.

The used programs, originally written in Borland Pascal were converted to Microsoft Access Visual
Basic. The databases of various investigation phases were combined, more parameters were added to the
program in order to make the program more user friendly. Also it is now possible to add new versions of
the existing data and store the abstracts of those work reports for which no digital data is stored.

Keywords: data management, database
Lallo, I. & Hellä, P. 1997. Updating the TUTKA-data management system. Work report-97-04. Posiva
Oy, Helsinki. 76 p. (in Finnish).

ABSTRACT

Posiva Oy studies the Finnish bedrock for the final disposal of the spent nuclear fuel. Preliminary site
investigations were carried out in five areas, Kuhmo, Hyrynsalmi, Konginkangas, Sievi and Eurajoki
during 1987 - 1992. Detailed site investigations have continued at Kuhmo Romuvaara, Äänekoski
Kivetty and Eurajoki Olkiluoto sites since 1993. In the beginning of 1997 the investigations were started
also at Loviisa Hästholmen. The investigations at these four sites will continue until 2000 when the site
for final disposal of the spent nuclear fuel will be selected.

The contractors and other research organisations involved with the site investigations have delivered all
measured, interpreted or modified data also in digital form to Posiva. The contents of the data is
described in special description files. Since 1994 TUTKA data management system has been used to
store the investigation data. TUTKA contains two parts: one for retrieval of existing data from the
archive and one to inspect and store new data to the archives. The databases are based on Microsoft
Access and the actual investigation data files are stored to magneto-optical Compact Disks (MO-disks).
Before starting the use of TUTKA, the data files of the preliminary investigation phase were converted
to uniform format and stored to the MO-disks. During the detailed site investigation phase the data has
been stored immediately after the compilation of the field or interpretation work. Data has also been
retrieved from the archive for the planning of new investigations as well as for the further interpretation
work. The data archives have been backed up systematically.

As the amount of the investigation data constantly increases and the system and the media used,
especially the MO-disks, were getting old-fashioned it was inevitably to update the system. The digital
archives should remain usable until the year 2000, after that at least the data concerning the site selected
for the final disposal should be still usable. The hardware used was replaced totally by a new one, the
MO-disks were replaced by writable CD-R-disks and partly by new MO-disks. The investigation data
was transferred from the old MO-disks to the CD-R-disks. The data files from the preliminary
investigation phase were still in PC-8 format. They were converted to Windows ANSI format. The CD-
R-disks cannot totally replace the old MO-disks because they are not suitable for continuous writing. For
that purpose the new MO-disks having larger storage capacity are used. When the MO-disk is full the
data is transferred to the CD-R-disk.

The used programs, originally written in Borland Pascal were converted to Microsoft Access Visual
Basic. The databases of various investigation phases were combined, more parameters were added to the
program in order to make the program more user friendly. Also it is now possible to add new versions of
the existing data and store the abstracts of those work reports for which no digital data is stored.

Keywords: data management, database

Keywords:

tiedonhallinta; tietokanta

File(s):

TUTKA-tiedonhallintajärjestelmän päivitys (pdf) (6.1 MB)


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