In this research work, copula-based methodology is adopted to analyze the hydrological drought frequency. Standardized Runoff Index SRI was calculated using monthly-streamflow data for 50 years of two gauging stations in northern region Iraq. The duration and severity were extracted run theory. Three Archimedean family Gaussian copulas used compared select most appropriate copula model bivariat...

1 Recent droughts and heatwaves showed the vulnerability of the electricity sector to surface water 2 constraints with reduced potentials for thermoelectric power and hydropower generation in different 3 regions. Here we use a global hydrological-electricity modelling framework to quantify the impacts of 4 recent drought and warm years on hydropower and thermoelectric power usable capacity worl...

daily discharge data of 12 hydrometric recording stations in atrak river basin were manipulated to calculate low flows for 7-day duration for studying hydrological drought using regional analysis method. using regression models, the low flows for 7-days duration of 10-year return period were calculated and regional low flows were estimated for 20 stations. daily data in each station used to sim...

Drought is a phenomenon that caused by several factors and can be divided into meteorological drought, agricultural hydrological socioeconomic drought. In this study, the characteristics of propagating from drought to (or hydrological) in Andong Dam basin Hapcheon located Nakdong River Korea were investigated. Standardized precipitation index (SPI), standardized soil moisture (SMI), runoff (SRI...

The hydrological response of Swiss river basins to the 2003 European summer heatwave was evaluated by a combined analysis of historical discharge records and specific applications of distributed hydrological modeling. In the summer of 2003, the discharge from headwater streams of the Swiss Central Plateau was only 40%–60% of the longterm average. For alpine basins runoff was about 60%–80% of th...

Correspon Abstract – Current projections predict an intensifi cation of hydrological drought as a consequence of climate change, but we know very little about the potential effects on aquatic communities. La Baña (SW León Province, Spain) is a mountain lake suffering from increased water seepage due to geological reasons. This has caused since 2005 a situation of hydrological drought, with pron...