166
March 2019
PHOTOGRAMMETRIC ENGINEERING & REMOTE SENSING
Lobito 1937 Datum to the WGS 84 Datum is
D
X = –256.73 m,
D
Y = 0.00 m, and
D
Z = –103.67 m (±10 m).
The Luanda Datum is based on the origin point at Luanda
Observatory where
F
o
= 08° 48´ 46.8˝ South,
L
o
= 13° 13´
21.8˝ East of Greenwich, Clarke 1866 ellipsoid. The Moçame-
des Datum of 1956 origin point is at the Moçamedes Meteoro-
logical Station where
F
o
= 15° 11´ 16.34˝ South,
L
o
= 12° 07´
34.53˝ East of Greenwich, Clarke 1866 ellipsoid.
Many thanks to Sequoia Read of the Defence Geographic
Centre and the Geodesy Section of the United Kingdom Hy-
drographic Office.
U
pdate
One recent article
1
found is by Sebastian J.F.
2
, Kutushev
S.B.
3
,
in
2015, called Modernization of “Geodetic Net” of the
Republic of Angola. The “Base Tasks.”
4
Printed in the Russian
journal Geodesy and Cartography [Geodezija i kartografija /
Геодезия и Картография], 2, pp. 19-24. However, the article
itself was not available (21JAN2019).
The article’s abstract reads:
The National Surveying and Mapping Organization needs to
be provided with legal support and technical documentation.
In general, modernization should involve three types of refer-
ence nets – Geodetic, Leveling and Gravimetric.
It seems there have been many calls for the modernization
of Angola’s geodetic network as far a field as the United Na-
tions Framework Convention on Climate Change
5
to a vari-
ety of dissertations
6,7
from Moscow State University.
The 2012 dissertation, outlines the main tasks of an orga-
nizational and technical nature, which, according to the au-
thors, is necessary to solve when upgrading the cartograph-
ic-geodetic of the Republic of Angola, State Geodetic Survey
In a recent email note from Dr. Rui Fernandes,
8
he men-
tioned that he inquired as to what the Angolan government
had accomplished in terms of a new datum and coordinate
system. Their reply was “We used your past project,” and
they offered no further details (personal communication, Jan-
uary 2019).
1 Geodesy and Cartography.
/
scientific_article/2015_2_19-24, Accessed 4 February 2019.
2 Department of Geography and Military Cartography of
the General Staff Angola Armed Forces, Luanda, Angola.
3 Bashkir State University, Ufa, Russia.
4 DOI: 10.22389/0016-7126-2015-896-2-19-24.
5 Angola Initial National Communication
/
resource/docs/natc/agonc1.pdf, Accessed 4 Febuary 2019.
6 Alves, Antonio. 2012. “Development of methods for up-
grading the planned geodetic network of the city using
modern satellite technologies”.
content/razrabotka-metodiki-modernizatsii-planovoi-geo-
dezicheskoi-seti-goroda-s-ispolzovaniem-sovrem, Accessed
4 February 2019.
7 Lucian, Damiao. 1998. “Development of a project for the
creation of the State Geodesic Network of Angola using
satellite technologies.”
razrabotka-proekta-sozdaniya-gosudarstvennoi-geodezich-
eskoi-seti-angoly-s-primeneniem-sputni#ixzz5eZrvgUUr,
Accessed 4 February 2019.
8 Universidade da Beira Interior Department of Computer
Science SEGAL, Covilhã, Portugal.
The contents of this column reflect the views of the author, who is
responsible for the facts and accuracy of the data presented herein.
The contents do not necessarily reflect the official views or policies of
the American Society for Photogrammetry and Remote Sensing and/
or the Louisiana State University Center for GeoInformatics (C
4
G).
This column was previously published in
PE&RS
.
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