A hydrological modelling-based approach for vulnerable area identification under changing climate scenarios
| العنوان: | A hydrological modelling-based approach for vulnerable area identification under changing climate scenarios |
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| المؤلفون: | Gopal Kumar, Monika Rawat, Sonam Sandeep Dash, Uday Mandal, Anil Kumar, Prasant Kumar Mishra, D.R. Sena |
| المصدر: | Journal of Water and Climate Change, Vol 12, Iss 2, Pp 433-452 (2021) |
| بيانات النشر: | IWA Publishing, 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | Atmospheric Science, 010504 meteorology & atmospheric sciences, Hydrological modelling, vulnerability, 0207 environmental engineering, 02 engineering and technology, Management, Monitoring, Policy and Law, 01 natural sciences, Environmental technology. Sanitary engineering, sediment yield, brahmani river basin, GE1-350, 020701 environmental engineering, TD1-1066, 0105 earth and related environmental sciences, Water Science and Technology, Global and Planetary Change, business.industry, Environmental resource management, Environmental sciences, climate change, environmental flow, Environmental science, Identification (biology), streamflow, business |
| الوصف: | The hydrologic behaviour of the Brahmani River basin (BRB) (39,633.90 km2), India was assessed for the base period (1970–1999) and future climate scenarios (2050) using the Soil and Water Assessment Tool (SWAT). Monthly streamflow data of 2000–2009 and 2010–2012 was used for calibration and validation, respectively, and performed satisfactorily with Nash-Sutcliffe Efficiency (ENS) of 0.52–0.55. The projected future climatic outcomes of the HadGEM2-ES model indicated that minimum temperature, maximum temperature, and precipitation may increase by 1.11–3.72 °C, 0.27–2.89 °C, and 16–263 mm, respectively, by 2050. The mean annual streamflow over the basin may increase by 20.86, 11.29, 4.45, and 37.94% under representative concentration pathway (RCP) 2.6, 4.5, 6.0, and 8.5, respectively, whereas the sediment yield is likely to increase by 23.34, 10.53, 2.45, and 27.62% under RCP 2.6, 4.5, 6.0, and 8.5, respectively, signifying RCP 8.5 to be the most adverse scenario for the BRB. Moreover, a ten-fold increase in environmental flow (defined as Q90) by the mid-century period is expected under the RCP 8.5 scenario. The vulnerable area assessment revealed that the increase in moderate and high erosion-prone regions will be more prevalent in the mid-century. The methodology developed herein could be successfully implemented for identification and prioritization of critical zones in worldwide river basins. |
| اللغة: | English |
| تدمد: | 2408-9354 2040-2244 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f00afdaf239029737f21af1aab825827 http://jwcc.iwaponline.com/content/12/2/433 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....f00afdaf239029737f21af1aab825827 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 24089354 20402244 |
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