Post on 30-May-2018
8/9/2019 Climatic Changes and Trends Over a Major River
http://slidepdf.com/reader/full/climatic-changes-and-trends-over-a-major-river 1/9
8/9/2019 Climatic Changes and Trends Over a Major River
http://slidepdf.com/reader/full/climatic-changes-and-trends-over-a-major-river 2/9
8/9/2019 Climatic Changes and Trends Over a Major River
http://slidepdf.com/reader/full/climatic-changes-and-trends-over-a-major-river 3/9
8/9/2019 Climatic Changes and Trends Over a Major River
http://slidepdf.com/reader/full/climatic-changes-and-trends-over-a-major-river 4/9
21 8 Clim. Res 2 : 2 1 5 - 2 2 3 , 1 9 9 3
Table 1 Seasonal and annual temperatures (mean f S D ) in the
Mahanadi Basin
(5) For annual mean minimum tempera-
tures, all stations except Sambalpur and Puri
and th e basin as a whole also showed signifi-
cant warming trends (0.1 o 5 % levels).emperature ("C)
Maximum M~ni mum Mean IWinter
Annual
Jabalpur During this season, the basin's averag e tem-
perature exhibited a significant increasing
trend (at 1% level). In case of individual sta-
tions, 5 stations, excepting Sambalpur and
Pun, showed significant warming trends (at
0.1% level) with a maximum increase of 2. 7 "C
per 100 yr at Jabalpur. It is seen that the major
contribution to increasing trend in average
temperatures is by the mean maximum tem-
peratu res in th.is season
Raipur
Sarnbalpur
Kanker
Cuttack
Jagdalpur
Pu n
Mahanadi Basin
WinterJabalpur
Raipur
Sambalpur
Kanker
Cuttack
Premonsoon
In this season Sambalpur, Cuttack and Puri
did not show any significant tren d. Increasing
trend in the average mean temperature was
highest at Jabalpur (2.9"C or 100 yr) which is
significant at 0.1% level. In the mean maxi-
mum temperatures, only Jabalpur showed a
significant rising trend (at 0.1% level). In
the case of minimum temper atures, th e whole
basin (at 5 % level), Jabalpur (at 10/0 level),
Raipur and Kanker (at 5 % levels) exhibit
significant warming trends for this season.
Jagdalpur
Pu n
Mahanadl Basin
Premonsoon
Jabalpur
Ra~purSambalpur
Kanker
Cuttack
Jagdalpur
PunMonsoon
Mahanadi Basin
During this season the basin as a whole and
3 stations, namely Jabalpur, Kanker and Jag-
dalpur, showed significant warming t rends in
the average mean temperatures. In the mean
maximum temperatures, 2 stations adjacent
to water bodies, i.e. Cuttack and Puri, werecharacterised by significant warming trends
(a t 5% levels) in addition to a rising trend at
Jabalpur (at 1% level). Jabalpur and Kanker
are the only 2 stations that showed rising
trends in the mean minimum temperatures at
1 and 5% levels respectively in this season.
Monsoon
Jabalpur
Raipur
Sambalpur
KankerCuttack
Jagdalpur
Puri
h4ahana d1 Basin
Postmonsoon
Jabalpur
Raipur
Sambalpur
Kanker
Cuttack
Jagdalpur
Pu n
Postmonsoon
Except Puri, all stations and the basin as a
whole showed significant incr eas~ng rends
in the average mean temperatures. Thelargest tr end of 3.3"C per 100 yr, which is
highly significant at the 0.1% level was ob-
served at Jabalpur. In the mean minimum
Mahan adi Basin
8/9/2019 Climatic Changes and Trends Over a Major River
http://slidepdf.com/reader/full/climatic-changes-and-trends-over-a-major-river 5/9
8/9/2019 Climatic Changes and Trends Over a Major River
http://slidepdf.com/reader/full/climatic-changes-and-trends-over-a-major-river 6/9
nQ
Tmpaue1°t
2 'P
Tmpauelo
P 2 zs~~:~~
~gzg~gY:K::
Tmpaue(
4- -,g~wNW
w*vl,..,OaoWWN:K
g % 2
wz
-W
-2'U.
Tempeaure1l
NNN NN W
~
L
"
m
z
~
.
o~
%
z
Y
i
Y
%
8/9/2019 Climatic Changes and Trends Over a Major River
http://slidepdf.com/reader/full/climatic-changes-and-trends-over-a-major-river 7/9
Rao: Climatic changes in India
MAX IMUM 0 . 6 ~ ~ / 1 0 0 ears
31
MEAN 0 3'~/ 100 Years
27
L
3
:, 26L
MINI MUM 0 . 2 ~ ~ / 1 0 0ears25
E
C 2 4
23
2 2
21
E 29MEAN I . O * C / ~ O O e a r s + +
28
f3 27m
Fig. 9.Trend analysis of surfa ce air tempe ratur e (
Puri
Fig. 7. Trend ana lysis of surf ace air temper ature ("C) at
Cuttack
34
33MAXIMUM 1.Ooc /Years + + +
Me." (.
SO ("C) 034
33 MAXIMUM 0.8 'C/100 Year s *
HEAN 0.7 OC/IOO Years *
MINIMUM 1 . 6 ~ ~ / 1 0 0 ears * * * lMean ['C)h S D K ) 0
Fig. 8. Trend analysis of surface air temperature ("C] at
Jagdalpur
Fig. 10. Trend analysis of surface air temperature ("C)
Mahanadi Basin
8/9/2019 Climatic Changes and Trends Over a Major River
http://slidepdf.com/reader/full/climatic-changes-and-trends-over-a-major-river 8/9
8/9/2019 Climatic Changes and Trends Over a Major River
http://slidepdf.com/reader/full/climatic-changes-and-trends-over-a-major-river 9/9