Structural Breaks in Mean Temperature over Agroclimatic Zones in India

Table 2

Structural break point alongwith their significance level by Chow test.

Month	Zone	Break	Chow statistic	Rate of change in temperature from 1901 to break point	Rate of change in temperature after break point
Annual average temperature	All India	1972	14.547***	0.004***	0.014***
Annual average temperature	Humid	1972	19.565***	0.005***	0.013***
Annual average temperature	Semiarid temperate	1974	1.223	0.005**	0.018**
Annual average temperature	Semiarid temperate	1970	40.316***	0.004**	0.016***
Annual average temperature	Arid	1971	1.231	0.005**	0.018**
July	All India	1970	4.269***	−0.007***	0.023***
August	All India	1970	3.192***	−0.003**	0.02***
September	All India	1970	0.063	−0.003*	0.024***
October	All India	1967	5.420**	−0.003	0.016**
November	All India	1971	41.126***	0.007**	0.030***
December	All India	1971	37.215***	0.012***	0.017**
September	Humid	1969	2.845*	0.001	0.019***
December	Humid	1970	20.310***	0.014***	0.022**
September	Semiarid temperate	1970	5.204**	−0.005	0.021**
November	Semiarid temperate	1969	18.198***	0.010**	0.027*
December	Semiarid temperate	1973	16.050***	0.013***	0.021
September	Semiarid tropic	1967	21.538***	−0.005**	0.024***
November	Semiarid tropic	1970	35.158***	0.009**	0.032**
December	Semiarid tropic	1970	28.886***	0.013***	0.021**
July	Arid	1972	6.593**	−0.008	0.039**
November	Arid	1970	10.599***	0.005	0.033**

***Significant at 1% level of significance.
**Significant at 5% level of significance.
*Significant at 10% level of significance.