94
S. Kusangaya et al.
Table 1
(continued)
Author (s)
Temperature parameters analysed
Study Area
Conclusions
Tshiala et al. (2011)
Annual mean minimum
Annual mean maximum Annual
seasonal minimum and maximum
Diurnal temperature range
Limpopo Province, South Africa An increase of 0.12°C/decade in the
mean annual temperature
13% of the catchments showed negative
trends, while 87% showed positive
trends in annual mean temperature
20% of catchments showed negative
trends, while 80% of catchments showed
positive trends in their diurnal
temperature range
Mean seasonal temperature trends of the
thirty catchments were found to be
0.180C/decade and 0.090C/decade for
winter and summer, respectively
Collins (2011)
Annual mean minimum
Annual mean maximum
Diurnal temperature range
Africa
Significant increasing temperature trends
were found in Southern Hemisphere of
Africa among other regions
For the months June–August, South
Africa saw significantly warmer
temperatures in the period 1995–2010
than in the period 1979–94
When the two most recent decades are
compared with the period 1979–90,
warming is observed and is concentrated
in the most recent decade, from 2001 to
2010
Over the period 1979–2010, there is a
significant (to 1% level) upward linear
trend noted with an estimate of 0.16
0C/decade.
(continued)
S. Kusangaya et al.
Table 1
(continued)
Author (s)
Temperature parameters analysed
Study Area
Conclusions
Tshiala et al. (2011)
Annual mean minimum
Annual mean maximum Annual
seasonal minimum and maximum
Diurnal temperature range
Limpopo Province, South Africa An increase of 0.12°C/decade in the
mean annual temperature
13% of the catchments showed negative
trends, while 87% showed positive
trends in annual mean temperature
20% of catchments showed negative
trends, while 80% of catchments showed
positive trends in their diurnal
temperature range
Mean seasonal temperature trends of the
thirty catchments were found to be
0.180C/decade and 0.090C/decade for
winter and summer, respectively
Collins (2011)
Annual mean minimum
Annual mean maximum
Diurnal temperature range
Africa
Significant increasing temperature trends
were found in Southern Hemisphere of
Africa among other regions
For the months June–August, South
Africa saw significantly warmer
temperatures in the period 1995–2010
than in the period 1979–94
When the two most recent decades are
compared with the period 1979–90,
warming is observed and is concentrated
in the most recent decade, from 2001 to
2010
Over the period 1979–2010, there is a
significant (to 1% level) upward linear
trend noted with an estimate of 0.16
0C/decade.
(continued)