Geoscience Reference
In-Depth Information
Series fit_dif
0.2
0.1
0.0
-0.1
-0.2
-0.3
-0.4
5
10
15
Lag
FIGURe 4.5
Partial auto-correlation function (PACF).
aforementioned dataset, ARIMA (1,1,1) can be fitted. The fitted
ARIMA (1,1,1) model without intercept is
ˆ
Y
=−
0 4435
.
Y
−
0 9497
.
ε
t
t
−
1
t
−
1
(4.8)
(.
0 1182
)
( .
0 0615
)
The number in the bracket indicates the standard error of the
parameter estimates.
4.3
Impact studies
Climate change impact studies here refer to research and inves-
tigations designed to find out what effect future changes in cli-
mate could have on the agriculture and allied sector. It requires
some tools and techniques that facilitate proper assessment. A
lot of research is going on in different fields of science with
respect to climate change. Here, some statistical techniques are
discussed which could be used for such studies to a great extent.
