Academic literature on the topic 'Climatic changes – Zambezi River Watershed'

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Journal articles on the topic "Climatic changes – Zambezi River Watershed"

1

Liu, Congcong, Yuanfang Chai, Boyuan Zhu, Yunping Yang, Jinyun Deng, and Yong Hu. "River regulation and resilience: an approach for the Yangtze watershed." Water Supply 21, no. 4 (2021): 1817–33. http://dx.doi.org/10.2166/ws.2021.035.

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Abstract Many studies have focused on analyzing variation characteristics of the watershed resilience based on different indicators, while few efforts have been made to quantificationally evaluate contributions of climatic and anthropogenic factors to the varied resilience. In this study, we investigate changes in the seasonal runoff resilience of the entire Yangtze River basin during 1961–2014 by using a convex model and a resilience indicator (Pi). The MIKE 11HD model and the regression method were adopted to further differentiate effects of climate variations and human activities. Results s
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Ervinia, A., J. Huang, and Z. Zhang. "Land-use changes reinforce the impacts of climate change on annual runoff dynamics in a southeast China coastal watershed." Hydrology and Earth System Sciences Discussions 12, no. 6 (2015): 6305–25. http://dx.doi.org/10.5194/hessd-12-6305-2015.

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Abstract. Study on runoff dynamics across different physiographic regions is fundamentally important to formulate the sound strategies for water resource management especially in the coastal watershed where peoples heavily concentrated and relied on water resources. The L−R diagram, a conceptual model by which the land-changes evapotranspiration (ΔL) was estimated as the difference between actual and climate evapotranspiration to identify the specific impact of land-use changes on annual runoff changes (ΔR), was developed using the 53-year hydro-climatic data of Jiulong River Watershed, a typi
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Gnjato, Slobodan, Tatjana Popov, Dragutin Adžić, Marko Ivanišević, Goran Trbić, and Davorin Bajić. "Influence of climate change on river discharges over the Sava River watershed in Bosnia and Herzegovina." Időjárás 125, no. 3 (2021): 449–62. http://dx.doi.org/10.28974/idojaras.2021.3.5.

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The paper examines changes in air temperature, precipitation, and river discharges on seasonal and annual scale over the Sava River watershed in Bosnia & Herzegovina during the period 1961–2016. Based upon data gathered from 11 meteorological stations and 3 hydrological stations, hydroclimatic variables trends were established by utilizing the nonparametric Mann-Kendall test and the nonparametric Sen’s slope estimator. The results show significant positive seasonal and annual trends (expect for autumn, during which upward trends were insignificant) in air temperature, whereas both positive
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Bawden, Allison J., Donald H. Burn, and Terry D. Prowse. "Recent changes in patterns of western Canadian river flow and association with climatic drivers." Hydrology Research 46, no. 4 (2014): 551–65. http://dx.doi.org/10.2166/nh.2014.032.

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Climatic variability and change can have profound impacts on the hydrologic regime of a watershed, especially in regions that are sensitive to changes in climate, such as the northern latitudes and alpine-fed regions of western Canada. Quantifying historical spatial and temporal changes in hydrological data can provide useful information as to how water resources are affected by climatic and atmospheric forcings, as well as create an understanding of potential future variability. Trends in western Canadian runoff are examined for the period of 1976–2010. Regional patterns of spatial variabilit
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Gao, Yuqin, Zichen Guo, Dongdong Wang, Zhenxing Zhang, and Yunping Liu. "Multivariate Flood Risk Analysis at a Watershed Scale Considering Climatic Factors." Water 10, no. 12 (2018): 1821. http://dx.doi.org/10.3390/w10121821.

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Based on the constructed SWAT model in the Qinhuai River Basin, the hydrological response of flooding under different scenarios of temperature and rainfall change is analyzed. The Copula function is then used to calculate and analyze the multivariate flood risk. The results show that the flood peaks increase with the increase of precipitation and decrease with the increase of temperature. The hydrological response of light floods to temperature changes is stronger than that of medium and heavy floods. Additionally, the temperature drop and the precipitation increase lead to a higher flood risk
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6

Pandey, Vishnu Prasad, Dibesh Shrestha, Mina Adhikari, and Shristi Shakya. "Streamflow Alterations, Attributions, and Implications in Extended East Rapti Watershed, Central-Southern Nepal." Sustainability 12, no. 9 (2020): 3829. http://dx.doi.org/10.3390/su12093829.

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Streamflow alteration and subsequent change in long-term average, seasonality, and extremes (e.g., floods and droughts) may affect water security, which is a major concern in many watersheds across the globe. Both climatic and anthropogenic activities may contribute to such changes. Therefore, this study assesses: (i) Streamflow and precipitation trends to identify streamflow alterations in the Extended East Rapti (EER) watershed in central-southern Nepal; (ii) relationship of the alterations to climatic and anthropogenic sources; and (iii) implications of streamflow changes to the socio-envir
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7

Kalu, Ikechukwu, Christopher E. Ndehedehe, Onuwa Okwuashi, and Aniekan E. Eyoh. "Assessing Freshwater Changes over Southern and Central Africa (2002–2017)." Remote Sensing 13, no. 13 (2021): 2543. http://dx.doi.org/10.3390/rs13132543.

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In large freshwater river basins across the globe, the composite influences of large-scale climatic processes and human activities (e.g., deforestation) on hydrological processes have been studied. However, the knowledge of these processes in this era of the Anthropocene in the understudied hydrologically pristine South Central African (SCA) region is limited. This study employs satellite observations of evapotranspiration (ET), precipitation and freshwater between 2002 and 2017 to explore the hydrological patterns of this region, which play a crucial role in global climatology. Multivariate m
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Talib, Ammara, and Timothy O. Randhir. "Climate change and land use impacts on hydrologic processes of watershed systems." Journal of Water and Climate Change 8, no. 3 (2017): 363–74. http://dx.doi.org/10.2166/wcc.2017.064.

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Land use, land cover and climate change (CC) can significantly influence the hydrologic balance and biogeochemical processes of watershed systems. These changes can alter interception, evapotranspiration (ET), infiltration, soil moisture, water balance, and biogeochemical cycling of carbon, nitrogen, and other elements. The need to evaluate the combined effect of land use change and CC of watershed systems is a focus of this study. We simulated watershed processes in the SuAsCo River watershed in MA, USA, using a calibrated and validated Hydrological Simulation Program Fortran model. Climatic
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Trammell, Jamie, Meagan Krupa, Paula Williams, and Andrew Kliskey. "Using Comprehensive Scenarios to Identify Social–Ecological Threats to Salmon in the Kenai River Watershed, Alaska." Sustainability 13, no. 10 (2021): 5490. http://dx.doi.org/10.3390/su13105490.

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Environmental changes caused by climate change in Alaska pose a serious threat to the food, energy and water systems that support the culturally diverse communities statewide. The fishing industry, watershed managers and other stakeholders struggle with understanding and predicting the rates, magnitude and location of changes occurring in their regions primarily because of the significant range of uncertainty inherent in these changes. With the guidance of stakeholders, we demonstrate a scenario analysis methodology to elucidate the interactions among various components and uncertainties withi
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Tamrakar, Naresh Kazi, and Ramita Bajracharya. "Basinal and planform characteristics of the Kodku and the Godavari Rivers, Kathmandu, Central Nepal." Bulletin of the Department of Geology 15 (January 21, 2013): 15–22. http://dx.doi.org/10.3126/bdg.v15i0.7414.

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The rivers of the Kathmandu Basin are vulnerable to flash floods and disturbances caused by anthropogenic as well as climatic changes. Two southern tributaries of the Bagmati River: the Kodku and the Godavari Rivers, have been considered for their (i) watershed-scale geomorphic parameters such as relative relief, drainage texture and stream order, (ii) stretchscale planform parameters such as sinuosity (K), meander belt width (Wblt), meander wavelength (Lm) and radius of curvature (Rc), and (ii) longitudinal profiles and slopes. Both Kodku and the Godavari Rivers are elongate basins with wide
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