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This Directory contains mean daily values of geomagnetic field
components at the Tbilisi Observatory (1880 - 1991).
This Directory was prepared by Institute of Geophysics of Georgian
Academy of Science.

Information on the DUSHETI (TBILISI, GEORGIA)
magnetic observatory
Geograpic Geomagnetic
Latitude 42 05' 36 31'
longitude 44 42' 122 12'
The long history of magnetic observations of Dusheti observatory is
recor-
ded on the PC-Disquette.
On the floppy disk in the directory DUSHETI are written the elements
of
the Earth's magnetic field from 1880 to 1991. In the subdirectory D,H,Z
are
written: D-declination, H and Z horizontal and vertical components.In the
D -
subdirectory are opened the files named 1880d (1880 is year and d is
declina-
tion). The data are given in minutes x10 (four orders). In the file
named
(1880d - is written the averaged twenty - fourhours' information about
annual
declination:
January: on the first and second lines (from 1 to 31 numbers).
February on the third and fourth lines (from 1 to 28 , or from 1 to 29
num-
bers) and so on.
December the twenty -third and twenty-fourth lines (from 1 to 31
numbers).
Similarty are written H and Z components (five orders) in nT.
If some of months or days in file are missing -it means, that the
figures
don't exist and these places are filled with gaps.
Directory 1TFS_YMD was prepared by WDC for STP. This Directory contains
Data in more comfortable format for users.