Climatic Change and Variability Impact on Regional Hydrological Regimes and Water Availability

Dear Colleagues,

The aim of this Special Issue is to explore the impacts of climatic change and variability on regional hydrological regimes and water availability. It includes, but is not limited to:

• Trends and variabilities of hydroclimate variables (for example, rainfall, streamflow, temperature, actual evaporation, potential evapotranspiration, soil moisture, groundwater level, lake level and volumes, glacier areas and volumes, water quality, irrigation and other water uses) based on observation on regional and global scales. The linkages between these trends and variabilities and climate change are partically welcome.
• Projections of future climate change with general circulation models (GCMs) and associated statistical and dynamic downscaling models. It also includes analysis of uncertainties of these projections.
• Non-stationary rainfall-runoff relationship (including rainfall-groundwater/water quality nonstationary relationship) due to climate change and variability, as well as human activities including land use and land cover changes and water use. It includes but not limited to statistical analysis and catchment hydrological modelling.
• Distinguishing and attributing the impacts of climate variability and changes and human activities on regional and global hydrological regimes and water availability.
• Modelling climate and hydrological extremes. New indices or early warning of these extremes are also welcome. The characteristics and impacts of extreme events (such as the hottest July 2023 in the last 12000 years) on regional water uses and water availability are also welcome.
• Water demand changes (such as irrigation water use, domestic water use) due to a higher temperature.
• Policy and schemes adaptions of water planning and management (such as water allocation and reservoir control and management) to climate change and variability.
• The changes and variations of climate drivers and weather types under global climate change scenarios and/or their hydrological applications, such as intensity and frequency of ENSO and its hydrological impacts.
• Other hydrological processes under global climate change scenarios, such as a higher risk of bush fires due to higher temperature and its impacts on both water quality and water quantity. Snowmelt and glacier melt due to higher temperature are essential for hydrological regimes on high latitude and mountain regions.

Dr. Guobin Fu
Guest Editor

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