Geodetic Reference System 1980


Salah satu resolusi penting IUGG 1979 adalah ketetapan pemakaian sistem referens geodetik baru iaitu GRS 1980. Sistem referens baru ini mengganti GRS 1967. Ketetapan parameter yang mendefinisi GRS 1980 diterbitkan dan telah dimuat dalam banyak penebitan geodesi. Salah satunya adalah dari sumber berikut - iag/aig (link). 

Another link - mit.

Wild Tachymat TC1 (1980)

source - dehilster

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