دورية أكاديمية
Modeling hydro-climatic changes of evapotranspiration over a semi-arid river basin of India
| العنوان: | Modeling hydro-climatic changes of evapotranspiration over a semi-arid river basin of India |
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| المؤلفون: | S. Rehana, G. Sireesha Naidu, N. T. Monish, U. Sowjanya |
| المصدر: | Journal of Water and Climate Change, Vol 12, Iss 2, Pp 502-520 (2021) |
| بيانات النشر: | IWA Publishing, 2021. |
| سنة النشر: | 2021 |
| المجموعة: | LCC:Environmental technology. Sanitary engineering LCC:Environmental sciences |
| مصطلحات موضوعية: | budyko hypothesis, cordex, pcraster, regional circulation models, thornthwaite model, Environmental technology. Sanitary engineering, TD1-1066, Environmental sciences, GE1-350 |
| الوصف: | Parametric models of actual evapotranspiration (AET) based on precipitation (P) and potential evapotranspiration (PET) are region-specific and purely climate-induced and limited to represent the hydrological water balances. Basin-averaged model parameters considering P, AET, and runoff (R) using a machine learning algorithm, ensemble regression model, is proposed. Hydrologically calibrated model parameters allowed the study of AET under alterations of water use for current and for future scenarios under climate change. The effect of climate, water, and land use changes on AET was studied for the post-change period of 2004–2014 compared to pre-change period of 1965–2003 over Krishna river basin (KRB), India. The AET has increased under climate and water use changes while there is both increase and decreases of AET under land use changes for post-change period compared to pre-change period over the basin. Severe water shortages were estimated under pronounced increase of temperature (1.29 °C) compared to precipitation increase (2.19%) based on Coordinated Regional Downscaling Experiment (CORDEX) projections for the period 2021–2060. Hydrologically induced AET changes were more pronounced than climate for current climate; whereas climate-induced AET changes were found to be more prominent for projected climate signals over the basin. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2040-2244 2408-9354 |
| Relation: | http://jwcc.iwaponline.com/content/12/2/502; https://doaj.org/toc/2040-2244; https://doaj.org/toc/2408-9354 |
| DOI: | 10.2166/wcc.2020.173 |
| URL الوصول: | https://doaj.org/article/16a3c156521847f687fe29c91fadb7b0 |
| رقم الأكسشن: | edsdoj.16a3c156521847f687fe29c91fadb7b0 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 20402244 24089354 |
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| DOI: | 10.2166/wcc.2020.173 |