Assessment of Climate Change Impact on Potential Evapotranspiration Trends in Sirsa and Hisar Districts of Haryana, India
Rahul Punia, Anurag, Ram Niwas, Yogesh Rajrana, Pardeep Kumar, Khemendra Choudhary, Ashish Kumar
Journal of Scientific Research and Reports · pp. 78–92 · Published 29 Jul 2025
10.9734/jsrr/2025/v31i83353Abstract
Potential evapotranspiration (PET), which is crucial for irrigation planning, influences crop water requirements in part. Thus, patterns in PET were discovered over Hisar and Sirsa in Haryana (India) in the current study utilizing the non-parametric Mann-Kendall (MK) test. First, PET values were first estimated for different time periods using the Thornthwaite method, employing meteorological data spanning 35 years from 1985 to 2019. Over the annual, kharif, rabi, pre-monsoon, monsoon, and post-monsoon time frames, PET was shown to climb significantly at Hisar and Sirsa. After evaluating the underlying meteorological parameters responsible for the reported PET trends in the Hisar and Sirsa, it was found that wind speed had a dynamic effect on the observed PET fluctuations at the yearly time scale and during all seven seasons. The results of the study support the hypothesis that evapotranspiration increases over Sirsa and Hisar.
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