1 Flashcards
what is the impact of climate change on the hydrological cycle?
water cycle will intensify. ET will increase (warm air can hold more vapor), as a result of this, precipitation will increase. uncertain how + to what extent the increase of precipitation is but extra precipitation will be unequally distributed
cc impact on precipitation and river discharge
more frequent and severe droughts/heavy precipitation events. the increase of ET affects the amount of surface water available (decreases)
cc impact on runoff and soil moisture
higher risk for single year droughts as GHG emissions increase
high risk of multi-year droughts, regardless of scenario
cc impact on water availability
in the warm seasons, there will be an increase in melt. the peak is shifting to earlier months, the daily mean precipitation will probably also increase, but this is uncertain. overall: water availability increases but the timing changes
how do socio-economic changes affect the water demand?
the water demand and water gap (demand-supply) will slightly increase
the demand for water and food will increase (assuming basic per capita requirements for water, food and energy