Sonu Khanal

ORCID: 0000-0003-4113-4972
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About
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Research Areas
  • Hydrology and Watershed Management Studies
  • Flood Risk Assessment and Management
  • Cryospheric studies and observations
  • Water-Energy-Food Nexus Studies
  • Climate variability and models
  • Climate change and permafrost
  • Transboundary Water Resource Management
  • Hydrology and Drought Analysis
  • Water resources management and optimization
  • Tropical and Extratropical Cyclones Research
  • Groundwater and Watershed Analysis
  • Meteorological Phenomena and Simulations
  • Arctic and Antarctic ice dynamics
  • Hydropower, Displacement, Environmental Impact
  • Reservoir Engineering and Simulation Methods
  • Energy and Environment Impacts
  • Trauma and Emergency Care Studies
  • Case Reports on Hematomas
  • Cavitation Phenomena in Pumps
  • Distributed and Parallel Computing Systems
  • Computational Physics and Python Applications
  • Fish biology, ecology, and behavior
  • Geological and Geophysical Studies
  • Infrastructure Maintenance and Monitoring
  • Public-Private Partnership Projects

MemorialCare Health System
2024

Utrecht University
2021-2022

Vrije Universiteit Amsterdam
2018-2021

International Centre for Integrated Mountain Development
2017-2020

Royal Netherlands Meteorological Institute
2018-2019

Abstract The hydrological response to climate change in mountainous basins manifests itself at varying spatial and temporal scales, ranging from catchment large river basin scale sub‐daily decade century scale. To robustly assess the 21st impact for hydrology entire High Mountain Asia (HMA) a wide range of we use high resolution cryospheric‐hydrological model covering 15 upstream HMA quantify compound effects future changes precipitation temperature based on projections Coupled Model...

10.1029/2020wr029266 article EN cc-by-nc-nd Water Resources Research 2021-05-01

Future hydrological extremes, such as floods and droughts, may pose serious threats for the livelihoods in upstream domains of Indus, Ganges, Brahmaputra. For this reason, impacts climate change on future extremes is investigated these river basins. We use a fully-distributed cryospheric-hydrological model to simulate current fluxes force with an ensemble 8 downscaled General Circulation Models (GCMs) that are selected from RCP4.5 RCP8.5 scenarios. The calibrated observed daily discharge...

10.1371/journal.pone.0190224 article EN cc-by PLoS ONE 2017-12-29

Many winter deep low-pressure systems passing over Western Europe have the potential to induce significant storm surge levels along coast of North Sea. The accompanying frontal lead large rainfall amounts, which can result in river discharges exceeding critical thresholds. risk disruptive societal impact increases strongly if runoff and storm-surge peak occur near-simultaneously. For Rhine catchment Dutch coastal area, existing studies suggest that no such relation is present at time lags...

10.3389/feart.2019.00224 article EN cc-by Frontiers in Earth Science 2019-09-18

Abstract Third Pole natural cascade alpine lakes (NCALs) are exceptionally sensitive to climate change, yet the underlying cryosphere-hydrological processes and associated societal impacts largely unknown. Here, with a state-of-the-art cryosphere-hydrology-lake-dam model, we quantified notable high-mountain Hoh-Xil NCALs basin (including Lakes Zonag, Kusai, Hedin Noel, Yanhu, from upstream downstream) formed by Lake Zonag outburst in September 2011. We demonstrate that long-term increased...

10.1093/pnasnexus/pgac053 article EN cc-by-nc-nd PNAS Nexus 2022-05-16

Abstract The climate of High Mountain Asia (HMA) has changed in recent decades. While the temperature is consistently increasing at a higher rate than global warming rate, precipitation changes are inconsistent, with substantial temporal and spatial variation. Climate will have enormous consequences for hydroclimatic extremes. For altitudes HMA, which significant source water large rivers Asia, often trends calculated using limited number situ observations mainly observed valleys. This study...

10.1175/jamc-d-21-0045.1 article EN cc-by Journal of Applied Meteorology and Climatology 2023-02-01

Spatio-temporal variation of hydrological processes that have a strong lagged autocorrelation (memory), such as soil moisture, snow accumulation and the antecedent hydro-climatic conditions, significantly impact peaks flood waves. Ignoring these memory leads to biased estimates floods high river levels are sensitive occurrence compounding hydro-meteorological processes. Here, we investigate role in meteorological systems at different temporal scales for Rhine basin. We simulate regime basin...

10.3390/atmos10040171 article EN cc-by Atmosphere 2019-03-31

Abstract. Many winter deep low-pressure systems passing over Western Europe have the potential to induce significant storm surge levels along coast of North Sea. The accompanying frontal lead large rainfall amounts, which can result in river discharges exceeding critical thresholds. risk disruptive societal impact increases strongly if runoff and storm-surge peak occur near-simultaneously. For Rhine catchment Dutch coastal area, existing studies suggest that no such relation is present at...

10.5194/hess-2018-103 preprint EN cc-by 2018-04-26

A comprehensive assessment of hydropower resource potential considering factors beyond technical and financial parameters is missing for the upper Indus basin (UIB). Our framework takes a systems approach to quantify theoretical sustainable by successively natural, technical, financial, anthropogenic, environmental, geo-hazard risk constraints on at individual sites as well basin-scale. Theoretical UIB 1564 TWh/yr 500-m resolution. Across three energy focus scenarios, our cost-minimization...

10.1016/j.apenergy.2023.122372 article EN cc-by Applied Energy 2023-12-27

Introduction Despite ambitious plans to quadruple hydropower generation in the Indus basin, a quantitative assessment of impact climate change on availability basin is missing. To address this gap, we combine downscaled CMIP6 projections with Hydropower Potential Exploration (HyPE) model quantify future potential available upper basin. Methods HyPE uses spatial cost-minimization framework evaluate four classes potential, namely theoretical, technical, financial and sustainable, considering...

10.3389/frwa.2023.1256249 article EN cc-by Frontiers in Water 2023-12-19

The Syr Darya River Basin is a transboundary glacier-fed river system, supporting the livelihoods of millions people across Central Asia. sustainable allocation water resources in this basin has become pressing concern due to increasing demands coupled with environmental degradation and climate uncertainty. Consequently, developing robust mechanisms that acknowledge Water-Energy-Food-Environment-Nexus (WEFE) vital for sustaining human ecosystem needs. This study scrutinizes relationship...

10.5194/egusphere-egu24-10214 preprint EN 2024-03-08

With steep elevation gradients and an abundance of water, Nepal is one the leading countries in hydropower capacity. This potential largely unutilised; representing a significant untapped renewable energy resource that could help achieve its emissions target improve security. However, future climate projections suggest changes discharge seasonality, which will impact potential. Hence, we provide estimate current theoretical four large basins Nepal, namely Mahakali, Karnali, Gandaki, Koshi....

10.5194/egusphere-egu24-18490 preprint EN 2024-03-11

The Karnali basin (40,000 sq km) in western Nepal is a pristine river with large potential for the development of hydropower and irrigation. sustains biodiversity national parks downstream supports livelihoods thousands people. Any changes flow regime may therefore have far reaching consequences. This study focuses on analyzing hydrological response to (multi-year) droughts. objective understand how long storages system, e.g. glaciers, snow, ground soil water can buffer prolonged model SPHY,...

10.5194/egusphere-egu24-14340 preprint EN 2024-03-09

In recent decades, the existence of a relationship between snow cover on Tibetan Plateau (TP) and East Asian summer monsoon (EASM) rainfall has been emphasized. According to recently published studies this snow-monsoon experienced shift after 1990. Although changing studied, causes interdecadal changes remain unclear. This study assesses associations TP spring with EASM before 1990 explores what possible mechanisms could be responsible for changes. Correlation composite analyses were used...

10.3389/feart.2024.1385657 article EN cc-by Frontiers in Earth Science 2024-07-17

<p>Droughts have directly affected at least 1.5 billion people in the last century, generating economic losses up to $124 billion. They are a recurrent, creeping meteorological hazard that may endanger water and food security of large regions. The frequency severity droughts expected increase with climate change, especially Africa, Central America, also Europe where annual multiply by 7 represent 2 times size European economy medium-long...

10.5194/egusphere-egu22-8016 preprint EN 2022-03-27

<p>Considering the lack of a comprehensive assessement hydropower potential in Upper Indus basin, we developed and implemented systematic framework to explore four different classes potential. Our uses high-resolution discharge generated by coupled cryosphere-hydrology model as bio-physical boundary conditions estimate theoretical Thereafter, diverse context-specific constraints are stepwise technical, economic sustainable The successive integrate considerations for various...

10.5194/egusphere-egu21-14452 article EN 2021-03-04

Climate change significantly impacts hydrological systems resulting in hydropower generation uncertainties. In this study, a high-resolution glacio-hydrological model is coupled with an hourly-resolution power grid to evaluate the climate influences on across Nepal. Four future scenarios namely Cold-Dry, Warm-Dry, Cold-Wet, and Warm-Wet are developed compare changes water availability optimal system historical climate. The total flow increases for wet (+11.4% under Cold-Wet Koshi basin),...

10.2139/ssrn.4401822 article EN 2023-01-01
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