| Autor: |
Sajjad, Sajjad Hussain1 (AUTHOR) shsajjad@hotmail.com, Blond, Nadège1 (AUTHOR), Mohsin, Tanzina2 (AUTHOR), Shakrullah, Khadija3 (AUTHOR), Clappier, Alain1 (AUTHOR) |
| Předmět: |
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| Zdroj: |
International Journal of Climatology. Apr2022, Vol. 42 Issue 5, p2881-2900. 20p. |
| Abstrakt: |
This study investigates the evolution of temperatures at several locations in Pakistan. Data on annual and seasonal minimum (Tn) and maximum (Tx) temperatures from 1950 to 2013 of urban (16 stations), town (11 stations), and rural (nine stations) areas are analysed to establish the mean decadal rate of change in urban, town, and rural temperatures. The homogeneity of the data was assessed using HOMER 2.6. To measure the temporal intensity of change in temperature, the data were split into two different periods: 1950–1981 (P1, phase of less urbanization) and 1982–2013 (P2, phase of highly urbanized period) and were analysed separately for both phases of 32 years each. The per decade changes of annual minimum and maximum temperatures (dTna and dTxa, respectively) over most stations show an increase in temperatures. The trends of annual and seasonal dTn and dTx observed over urban, town, and rural stations during P2 are significantly higher than those observed during P1. The increase in minimum temperatures is more significant than that in maximum temperature, and it is also more significant on urban stations than the town and rural stations. However, the maximum temperatures increase more at town stations than urban and rural stations. Overall, the tendencies in temperatures reflect less change in summer temperatures than other seasons of the year over the whole period. [ABSTRACT FROM AUTHOR] |
| Databáze: |
GreenFILE |
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