Long-term variations of surface air temperature at major industrial cities of India

Kumar, Krishan; Hingane, L. S.

doi:10.1007/bf00139811

Cited by 53 publications

(38 citation statements)

References 17 publications

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“…The summer season also shows significant cooling trend due to slightly decrease in Tmax. This cooling trend in Junagadh (Saurashtra Region) Gujarat, India temperature is supported by studies conducted by other researchers (Rupa Kumar and Hingane, 1988). These authors studied the temperature for Junagadh (Saurashtra region) Gujarat, India during the period 1980-2007 and observed a cooling trend, but not significant at any level.…”

supporting

confidence: 61%

A Study of Maximum and Minimum Temperatures Trends at Junagadh (Saurashtra Region) of Gujarat, India

et al. 2015

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This paper, therefore, attempts to study temporal variation in temperature over Junagadh (Saurashtra Region) of Gujarat, India, India, during the period 1980-2011. The long-term change in temperature has been evaluated by Mann-Kendall rank statistics and linear trend. An important aspect of the present study is the significant cooling trend in mean annual temperature, which is more predominant during winter season. The summer season also shows significant cooling trend due to slightly decrease in Tmax. This cooling trend in Junagadh (Saurashtra Region) Gujarat, India temperature is supported by studies conducted by other researchers (Rupa Kumar and Hingane, 1988). These authors studied the temperature for Junagadh (Saurashtra region) Gujarat, India during the period 1980-2007 and observed a cooling trend, but not significant at any level. Against this background, in the present study, temperature data during the period 1980-2011 have been studied. The result indicates significant slightly decrease in winter temperature at 0.01 level. This suggests that the last decade has witnessed a phenomenal epoch in temperature series, leading to a decreasing trend from non-significant to significant. Contrary to this, the monsoon season shows warming trend. This may be due to significant increase in the low cloud amount during this season. We are still a long way from understanding the complex interaction of many physical processes that determine the evolution of climate.

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confidence: 61%

A Study of Maximum and Minimum Temperatures Trends at Junagadh (Saurashtra Region) of Gujarat, India

et al. 2015

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“…A 9-point Gaussian lowpass filter was used to give a smoothed curve a s was used earlier in Indian studies by Hingane e t al. (1985) and Rupakumar & Hingane (1988). The smoothed curve is drawn as the time series in addition to the trend line.…”

Section: Data and Analysismentioning

confidence: 99%

“…Their analysis showed that the mean annual temperature in India has increased by 0.4 "C during the past century. Rupakumar & Hingane (1988) have reported the results of the analysis of long-term trends of surface air temperatures of 6 industrial cities in India. They concluded that 3 cities (Calcutta, Bombay and Bangalore) showed a significant warming trend, 2 cities (Madras a n d Pune) did not show any significant trend a n d 1 city (Delhi) showed a significant cooling trend (Fig.…”

Section: Introductionmentioning

confidence: 99%

Climatic changes and trends over a major river basin in India

Rao¹

1993

Clim. Res.

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ABSTRACT. Long-term changes of seasonal and annual surface air temperatures and precipitation of the Mahanadi river basin in India are presented. The long-term trends in these 2 important climatic elements were evaluated by linear trend analysis. The results indicate that there is a highly significant warming trend in the mean maximum, mean minimum and average mean temperatures of the basin based on data from 7 stations for the period 1901-80. Results of the trend analysis of surface air temperatures of individual stations are also presented and discussed. Increase in greenhouse gases in the atmosphere over India, recent land-use pattern changes and agricultural practices in the region appear to have a bearing on the observed i'varrning trend. For rainfall, rnonsoon and annual serles were subjected to trend analysis. Basin rainfall series based on data from 125 stations for the period 1901-80 did not show any significant trend. Moreover, none of 10 selected stations in the basin was characterised by a significant increasing or decreasing tendency in either monsoon or annual rainfall.

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“…The details of the stations are given in Table 1. The classification of cities is similar to that of Ren et al [18] and Rupa Kumar et al [12]. Stations with altitude more than 1000 m are considered as hill stations (https://en.wikipedia.org./wiki/Hill_station).…”

Section: Data and Methods Of Analysismentioning

confidence: 99%

“…While, all the major cities along the coasts show a significant increasing trend in almost all the seasons for the periods 1971-2013 and 1901-2013 (Figure 2 and relevant explanation are given in section 4). The marked differences in the temperature trends at the stations are determined more by the location of the stations with respect to the broad areas of increasing/decreasing trends observed over India rather than the stations being highly industrialized/non-industrialized [12].…”

Section: Major Citiesmentioning

confidence: 95%

Long Term Temperature Trends at Major, Medium, Small Cities and Hill Stations in India during the Period 1901-2013

Kothawale¹,

Deshpande²,

Kolli³

2016

AJCC

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Industrialization and urbanization are the most dominant causal factors for long-term changes in surface air temperatures. To examine this fact, the long term changes in the surface-air temperatures have been evaluated by the linear trend for the different periods, i.e. and recent period 1971-2013 as rapid industrialization was observed during the recent four decades. In the present study, seasonal and annual mean, maximum and minimum temperature data of 36 stations for the period 1901-2013 have been used. These stations are classified into 4 groups, namely major, medium, small cities and hill stations. During the period 1901-1970, less than 50% stations from each group showed a significant increasing trend in annual mean temperature, whereas in the recent period 1971-2013, more than 80% stations from all the groups except small city group showed a significant increasing trend. The minimum temperature increased faster than that of the maximum temperature over major and medium cities, while maximum temperature increased faster than the minimum temperature over the small cities and hill stations. The annual mean temperature of all the coastal stations showed a significant increasing trend and positive correlation with Precipitable Water Vapour (PWV). The effect of PWV is more pronounced on minimum temperature than that of the maximum.

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Long-term variations of surface air temperature at major industrial cities of India

Cited by 53 publications

References 17 publications

A Study of Maximum and Minimum Temperatures Trends at Junagadh (Saurashtra Region) of Gujarat, India

A Study of Maximum and Minimum Temperatures Trends at Junagadh (Saurashtra Region) of Gujarat, India

Climatic changes and trends over a major river basin in India

Long Term Temperature Trends at Major, Medium, Small Cities and Hill Stations in India during the Period 1901-2013

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