Assessing resource vulnerability quadrants under changing precipitation trends in Uttarakhand, Central Himalayan region

Vijhani, Ayushi; Sinha, Vinay Shankar Prasad; Govindan, M.

doi:10.1007/s11629-021-6856-6

Cited by 6 publications

(2 citation statements)

References 82 publications

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“…In climate studies, the identi cation of trends of climatic variables on a global scale within a watershed is a common pursuit. To ascertain these trends with an acceptable level of con dence, statistical approaches frequently employ either parametric or non-parametric trend analysis methods (Vijhani et al, 2021). Among the methods used for this purpose, the Mann-Kendall Test and Sen's Slope Test are often popular choices.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Climate Extremes in Jabalpur District of Madhya Pradesh: Trends and Future Implications

Thakur,

Gururani,

Agrawal

et al. 2024

Preprint

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Climate change is a long-term change in hydro-meteorological conditions in a particular geographical region. In the present study, spatio-temporal long-term change in rainfall during 1961–2020 was analyzed using IMD 0.25°×0.25° resolution gridded dataset in the Jabalpur district. The non-parametric Mann–Kendall trend test and Sen’s slope estimator was applied to determine the trend and its magnitude, respectively in the precipitation time series. Extreme indices were employed to understand the risks and vulnerabilities associated with extreme weather events in the district. Mann-Kendall trend test showed an insignificant trend at 95% confidence interval with Sen’s slope value of -2.98 to 0.73 mm/year. CLIMPACT tool was used to study extreme indices and it revealed that, in the district, CDD, CWD, R10, R20, and RX5 were decreasing, whereas RX1 and SDII were found increasing. The study’s outcomes provide valuable inferences for future water resource planning and management in central India, particularly in Jabalpur district.

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Section: Introductionmentioning

confidence: 99%

Investigation of Climate Extremes in Jabalpur District of Madhya Pradesh: Trends and Future Implications

Thakur,

Gururani,

Agrawal

et al. 2024

Preprint

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“…Spatio-temporal heterogeneity in precipitation causes detrimental effects on the river and spring hydrology which consequently induces relevant societal implications. During 1901 and 2010, the average annual rainfall in Uttarakhand's three physiographic zones was Himadri Himalaya (1376.57 mm), Lesser Himalayas (1477.41 mm), and Shivalik Himalaya (1443.18 mm) (Vijhani et al, 2021). Further, the springs have dried up and become seasonal in over half of the villages in Uttarakhand imperilling the water security of the spring-dependent population (Sati, 2005).…”

Section: Introductionmentioning

confidence: 99%

Assessment of diminishing discharge of springs in Central Himalayan region, India

Vijhani

Sinha

Azad³

et al. 2022

Hydrological Processes

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Uttarakhand is witnessing a drastic decrease in spring discharge which leads to scarcity of drinking water for Himalayan inhabitants. This study uses a novel approach to assess the surface‐subsurface interaction of water, pivotal for estimating the status of spring discharge. Hydrological modelling has been used to quantify the diminishing discharge of spring and their associated factors, including changes in land practises and precipitation patterns. The coupling of the soil water assessment tool (SWAT) and MIKE hydro NAM model was proposed in the study to assess the decreasing discharge for an ungauged watershed. The model performance evaluated between the SWAT and the MIKE hydro NAM model indicated a very good index of agreement (d = 0.81). Field‐based spring discharge investigations were conducted in almost all watersheds in the study area. The MIKE hydro NAM model showed a good index of agreement (d = 0.79) with the observed spring discharge. Further, the geographically weighted regression (GWR) technique was applied over 17 driving factors based on hydrological parameters including topography, structural geology, land use/land cover and future annual precipitation (till 2030) under the RCP 4.5 scenario to understand the status of diminishing discharge of springs. The accuracy between the observed spring discharge and the GWR indicated a good index of agreement (d = 0.86). The results indicate that annual spring discharges will be significantly reduced up to 50% from 1975 to near future (2030), posing a threat to the drinking water supply. The proposed approach is replicable and scalable for ungauged river systems of the Himalayas. The study demonstrates the methods such as trend analysis of precipitation behaviour, land use change dynamics using remote sensing techniques, structural geological investigation through field measurements and hydrodynamic modelling are important for understanding surface‐subsurface interaction. The findings of the study help to identify the critical recharge zones for implementing the spring revival and rejuvenation programmes.

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Spatial risk occurrence of extreme precipitation in China under historical and future scenarios

Jin,

Zhong,

Liu

et al. 2023

Nat Hazards

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Assessing resource vulnerability quadrants under changing precipitation trends in Uttarakhand, Central Himalayan region

Cited by 6 publications

References 82 publications

Investigation of Climate Extremes in Jabalpur District of Madhya Pradesh: Trends and Future Implications

Investigation of Climate Extremes in Jabalpur District of Madhya Pradesh: Trends and Future Implications

Assessment of diminishing discharge of springs in Central Himalayan region, India

Spatial risk occurrence of extreme precipitation in China under historical and future scenarios

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