Dyson, Liesl L.; Van Heerden, Johan; Sumner, P.D. (Paul)(Wiley, 2015-01)
Irene weather office sounding data are considered a proximity sounding for the Gauteng
province of South Africa. Sounding-derived parameters are analysed for 35 austral summers
from 1977 to 2012. The goal of this study ...
De Villiers, Michael P.; Van Heerden, Johan(Wiley, 2001)
Clear air turbulence (CAT) at high altitude remains a hazard to aviation which can result in passenger
injury and aircraft damage. Two limited surveys of CAT events over South Africa, 1993-1995 (inclusive)
and 1998, are ...
De Villiers, Michael P.; Van Heerden, Johan(Wiley, 2007-12)
Estimates have been made that, annually,
up to about two billion tons of dust are carried
up into the atmosphere, mainly by dust
storms. One dust storm can lift and deposit
more than 200 tons of dust (Griffin et ...
Klemm, Otto; Schemenauer, Robert S.; Lummerich, Anne; Cereceda, Pilar; Marzol, Victoria; Corell, David; Van Heerden, Johan; Reinhard, Dirk; Gherezghiher, Tseggai; Olivier, Jana; Osses, Pablo; Sarsour, Jamal; Frost, Ernst; Estrela, Maria J.; Valiente, Jose A.; Fessehaye, Gebregiorgis Mussie(Springer, 2012-05)
The collection of fog water is a simple and
sustainable technology to obtain fresh water for afforestation,
gardening, and as a drinking water source for human
and animal consumption. In regions where fresh water ...
De Villiers, Michael, P.; Van Heerden, Johan(Wiley, 2007-08)
Fog that reduces visibility to the point
where aircraft have to divert to another airport
is not uncommon at Abu Dhabi
International Airport (ADIA) in the United
Arab Emirates (UAE). Over the
period 1982 to 2003, ...