Knowra Climate change and the water cycle Climate change and the water cycle Climate change alters evaporation, precipitation, and water storage by warming the air, land, and oceans. These shifts intensify some parts of the water cycle while changing where and when water is available.
Atmospheric water vapor : Water present in the atmosphere as an invisible gas. Warmer air can hold more vapor, increasing the atmosphere's capacity to transport moisture.
Hydrological drought : A prolonged shortage of water in rivers, reservoirs, lakes, or groundwater. Reduced recharge and altered runoff can turn meteorological dryness into sustained water shortages.
Atmospheric river : A narrow corridor of concentrated water vapor that transports moisture through the atmosphere. Warming can increase moisture carried by these systems, intensifying some coastal precipitation events.
Precipitation elasticity : The percentage change in precipitation associated with a given percentage change in a climate driver, commonly global temperature. It summarizes how strongly precipitation responds to warming, but responses vary across regions.
Evapotranspiration : The transfer of water to the atmosphere through evaporation from surfaces and transpiration by plants. Warming and changing soil moisture alter this major pathway from land to air.
Flood : An overflow of water that inundates land that is normally dry. Heavier downpours and rapid snowmelt can raise flood risk in many regions.
Drought monitoring : The observation and assessment of drought conditions using precipitation, soil, streamflow, and other indicators. Tracking multiple water stores helps detect drought that rainfall measures alone can miss.
Monsoon : A seasonal circulation pattern marked by a reversal in prevailing winds and a pronounced wet or dry season. Monsoon rainfall depends on complex land–ocean and atmospheric responses to warming.
Precipitation change : A change over time in the amount, timing, intensity, or form of precipitation. A warmer atmosphere reshapes rainfall and snowfall patterns, not just total precipitation.
Groundwater recharge : The process by which water moves downward from the surface to replenish an aquifer. Changes in rainfall, soil conditions, and evaporation affect how much water reaches aquifers.
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