Impact of Climate Variability on the Hydrological Regime of the Vakhsh River Basin, Tajikistan = 기후변동성이 타지키스탄 바흐쉬 강 유역의 수문체제에 미치는 영향

다국어 초록 (Multilingual Abstract)

Climate change and its factors are impacting the Vakhsh River Basin which is a basic water asset for Tajikistan. This study investigates the impacts of Climatic factors on the hydrological system of the Vakhsh River Basin in Tajikistan. It is determined to observe the changes in water flow patterns in the stream of the Vakhsh River due to natural and anthropogenic factors. The major variables to check these changes are Temperature, Precipitation, and River flow. Qualitative research approach has been used by applying thematic analysis as the primary analytical approach. Correlation analysis has been integrated to assess historical and current trends in temperature, precipitation, and stream flow. Data were collected from reliable governmental and scientific sources with a focus on examining interdependencies between climatic variables and hydrological responses. The findings of the study reveal significant changes in temperature, with a steady increase observed over recent decades, particularly during spring and summer. This warming trend has speed up the processes of snowmelting leading to higher discharge rates during early summer but the availability of water resources in late summer and autumn. The study concludes that the hydrological processes of the Vakhsh River Basin is highly sensitive to climatic changes with significant implications to water resource management. Adaptive strategies including improved reservoir operations and predictive modeling for extreme weather events are recommended to mitigate the challenges posed by seasonal and long-term variations in stream flow. By addressing specific climatic and hydrological dynamics, this research provides a valuable foundation for policymakers and stakeholders to enhance water resource resources sustainability and resilience in the Vakhsh River Basin. Keywords: climate change, hydrological regime, Vakhsh River Basin, streamflow, trend analysis, seasonal variability, cyclical patterns.

목차 (Table of Contents)

• Abstract i
• List of Tables iv
• List of Figures v
• Chapter 1. Introduction 1
• 1.1. Research Background and Objectives 1
• 1.2. Research Scopes and Contents 5
• Chapter 2. Literature Review 8
• 2.1. Climate Variability and Hydrological Processes 9
• 2.2. Impact of Climate Change on Water Resources in Central Asia 14
• 2.3. Correlation Analysis of Climate Variables and Hydrological Responses 18
• Chapter 3. Methodology and Theoretical Framework 21
• 3.1. Research Design 21
• 3.1.1. Data Quality Control and Processing 22
• 3.1.2. Data Pre-processing and Quality Assessment 22
• 3.1.3. Data Analysis and interpretation 23
• 3.2. Introduction of the Study Area 24
• 3.3. Data Collection Methods 28
• 3.4. Theoretical Background of the Studied Parameters 29
• Chapter 4. Results and Discussion 33
• 4.1. Selection of Key Parameters for Climate Impact Analysis in the Vakhsh River Basin 33
• 4.2. Descriptive analysis of the data 34
• 4.3. Basic Statistical Analysis 40
• 4.4. Correlation Analysis 44
• 4.5. Discussion 48
• Chapter 5. Conclusion 50
• Reference 52
• 국문초록 61
• Acknowledgement 62