Optical turbulence in the coastal area over False Bay, South Africa: comparison of measurements and modeling results

2018 ◽  
Author(s):  
Detlev Sprung ◽  
Alexander M. J. van Eijk ◽  
Carmen Ullwer ◽  
Willi Gunter ◽  
Christian Eisele ◽  
...  
Keyword(s):  
South Africa ◽  
Coastal Area ◽  
Optical Turbulence

scholarly journals Characterization of Palyam serogroup orbiviruses isolated in South Africa and serologic evidence for their widespread distribution in the country

1989 ◽  
Vol 102 (2) ◽  
pp. 317-324 ◽  
Author(s):  
T. Whistler ◽  
R. Swanepoel ◽  
B. J. Erasmus
Keyword(s):  
South Africa ◽  
Coastal Area ◽  
Neutralizing Antibodies ◽  
Widespread Distribution ◽  
High Prevalence ◽  
Serologic Evidence ◽  
Antigenic Complex ◽  
Mild Fever

SUMMARYThe finding that there had been multiple isolations of Palyam serogroup orbiviruses from aborted cattle fetuses in neighbouring Zimbabwe, suggested that there was a need to investigate the possible occurrence of the viruses in South Africa. Unidentified viruses isolated in South Africa, which had been in storage, were examined. Four viruses which had been isolated fromCulicoidesmidges collected at various sites in the years from 1969 to 1977, were identified as three strains of Gweru virus and one of the Nyabira virus (Palyam group serotypes originally described from Zimbabwe) A fifth virus, isolated in 1967 from the blood of a cow with mild fever, was found to be a distinct new member of the Vellore antigenic complex of the Palyam serogroup and was named Apies River virus. Sera from 476 cattle, 150 sheep, 24 goats and 78 humans from 10 farms were tested for neutralizing antibodies to the above three serotypes of virus plus Abadina and Marondera serotypes. Only 1 of 100 cattle sera from two farms in the southern coastal area had antibody, but elsewhere there was a high prevalence of antibody with 254 (53%) of all cattle exhibiting activity for one or more of the five serotypes of virus tested. Only 6 (4%) sheep, 3 (12–5%) goats and 11 (14%) humans had antibody.

Inhomogeneity of optical turbulence over False Bay (South Africa)

2017 ◽  
Author(s):  
Alexander M. J. van Eijk ◽  
Carmen Ullwer ◽  
Detlev Sprung ◽  
Karin U. Stein ◽  
Willie Gunter
Keyword(s):  
South Africa ◽  
Optical Turbulence

I.—The Geological History of South Africa

1906 ◽  
Vol 3 (3) ◽  
pp. 97-104 ◽  
Author(s):  
F. H. Hatch
Keyword(s):  
South Africa ◽  
South African ◽  
Coastal Area ◽  
Land Surface ◽  
Geological History ◽  
Physical Conditions ◽  
History Of ◽  
The Subject ◽  
History Of The South ◽  
Broad Outline

The subject of this address is a brief acount of the succession, thickness, and geological history of the South African, and more especially of the Transvaal, formations. The information necessary for such an account is of course very incomplete, but in broad outline the succession is now known, and some speculation as to the physical conditions that prevailed during the building up of the region may perhaps be permitted. I propose to deal with the period of the geological history of this country that came to an end with the close of Karroo times. The Karroo period ends with the Stormberg rocks (Rhæitic), and since that time South Africa has, with the exception of a small coastal area, been a land surface, and the rocks have consequently been exposed uninterruptedly to the forces of denudation.

Some data on the feeding habits of the banded mongoose in a coastal area (South Africa)

2016 ◽  
Vol 54 (2) ◽  
pp. 245-247 ◽  
Author(s):  
Ant H. Maddock ◽  
Emmanuel Do Linh San ◽  
Mike R. Perrin
Keyword(s):  
South Africa ◽  
Coastal Area ◽  
Feeding Habits ◽  
Banded Mongoose

Investigation of the height dependency of optical turbulence in the surface layer over False Bay (South Africa)

2017 ◽  
Author(s):  
Dirk Seiffer ◽  
Alexander M. J. van Eijk ◽  
Detlev Sprung ◽  
Willem H. Gunter ◽  
Derek J. Griffith ◽  
...  
Keyword(s):  
South Africa ◽  
Surface Layer ◽  
Optical Turbulence

scholarly journals Extraordinary jumping ability of the Red Forest Duiker Cephalophus Natalensis

Koedoe ◽  
1979 ◽  
Vol 22 (1) ◽  
Author(s):  
V De Vos
Keyword(s):  
South Africa ◽  
Coastal Area

While catching game in the northeastern coastal area of Natal near False Bay, Lake St. Lucia, Republic of South Africa, we were forced to keep red forest duiker Cephalophus natalensis in a holding corral for short periods before translocation commenced.

First results on the Experiment FESTER on optical turbulence over False Bay South Africa: dependencies and consequences

2016 ◽  
Author(s):  
Detlev Sprung ◽  
Alexander M. J. van Eijk ◽  
Erik Sucher ◽  
Christian Eisele ◽  
Dirk Seiffer ◽  
...  
Keyword(s):  
South Africa ◽  
Optical Turbulence ◽  
First Results

Towards Integrated Coastal Area Management: A Case Study in Co-operative Governance in South Africa and Australia

2005 ◽  
Vol 20 (1) ◽  
pp. 65-84 ◽  
Author(s):  
Jan Glazewski ◽  
Marcus Haward
Keyword(s):  
South Africa ◽  
Local Government ◽  
Coastal Area ◽  
Human Activities ◽  
Focal Point ◽  
Political Factors ◽  
Coastal Area Management ◽  
Area Management

AbstractIn Australia and South Africa an ecologically diverse coastline is the focal point for virtually the whole spectrum of human activities. A key to coastal area management in both polities is "co-operative governance", that provides a solution to the dilemmas arising from divided jurisdiction and overlapping or competing claims for responsibility between different units of government. This paper examines the respective roles of national, sub-national and local government in coastal area management in South Africa and Australia focusing on legal and political factors supporting co-operative governance of the coastal area.

Time and Latitude in South Africa

1972 ◽  
Vol 1 ◽  
pp. 27-38
Author(s):  
J. Hers
Keyword(s):  
South Africa ◽  
Cape Town ◽  
Astronomical Observations ◽  
Royal Observatory ◽  
The Republic ◽  
Astronomical Determination ◽  
Limited Accuracy ◽  
Better Than

In South Africa the modern outlook towards time may be said to have started in 1948. Both the two major observatories, The Royal Observatory in Cape Town and the Union Observatory (now known as the Republic Observatory) in Johannesburg had, of course, been involved in the astronomical determination of time almost from their inception, and the Johannesburg Observatory has been responsible for the official time of South Africa since 1908. However the pendulum clocks then in use could not be relied on to provide an accuracy better than about 1/10 second, which was of the same order as that of the astronomical observations. It is doubtful if much use was made of even this limited accuracy outside the two observatories, and although there may – occasionally have been a demand for more accurate time, it was certainly not voiced.

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