Impact of climate change on water resources in Yongdam Dam Basin, Korea

Abstract

The main purpose of this study is to investigate and evaluate the impact of climate change on the runoff and water resources of Yongdam basin, Korea. First, we construct global climate change scenarios using the YONU GCM control run and transient experiments, then transform the YONU GCM gridbox predictions with coarse resolution of climate change into the site-specific values by statistical downscaling techniques. The downscaled values are used to modify the parameters of a stochastic weather generator model for the simulation of the site-specific daily weather time series. The weather series is fed into a semi-distributed hydrological model called SLURP to simulate the streamflows associated with other water resources for the condition of 2CO 2 . This approach is applied to the Yongdam dam basin in the southern part of Korea. The results show that under the condition of 2CO 2 , about 7.6% of annual mean streamflow is reduced when it is compared with the current condition.Seasonal streamflows in the winter and autumn are increased, while streamflow in the summer is decreased. However, the seasonality of the simulated series is similar to the observed pattern

An integrated statistical approach to identify the nonlinear trend of runoff in the Hotan River and its relation with climatic factors

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Changes in aridity and its impact on agricultural lands in East Asia for 1.5 and 2.0 °C temperature rise scenarios

“…The expected warming may alter the amount of summer precipitation in East Asia. Some studies predicted an increase in summer rainfall due to increased atmospheric moisture, while others suggest that changes in monsoon circulation may also play a role (Huang et al 2007; Kim et al 2007;Zhao et al 2021). It is important to continue researching the potential impacts of global warming on regional precipitation and evapotranspiration patterns to understand potential changes in aridity.…”

Climate Change Impact Assessment on Han River Long Term Runoff in South Korea Based on RCP Climate Change Scenario

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