A Geoidal section in East Africa
Abstract
Astronomical observations were made over a loop
through East Africa from 8 degrees South to 3 degrees North
in the years 1967 to 1971 at existing trigonometrical stations
in the survey networks. The work presented in this thesis
covers twenty three stations in Tanzania from t~te in Ufipa
to the Kenya border.
Astro-geodetic deflections were computed to second
order accuracy and the resulting deviations of the vertical
were converted into the separation of the geoid from the
spheroid of the New Arc Datum 1960. Conversions were made
onto the European Datum 1950 and also the Tranet 8E Datum of
Isiolo to link with previously published work by Bomford
(1958) and Henry & Walker (1974). Anomalous deflections
are discussed in terms of the physical causes - topographical
and geological - and those considered to have been caused
by the computation and the adjustment of the networks of
the Arc and its loops in Tanzania.
Citation
M.Sc (Surveying)Publisher
School of Enginnering, University of Nairobi
Description
M.Sc Thesis