As a climate scientist with a background in civil engineering, I am interested in exploring the links between the science of climate change and extreme weather events on one hand and the impacts those events have on our daily lives on the other. Understanding the connections is crucial in order to develop sound strategies to adapt to climate change.
Thirstier atmosphere, more extreme precipitation
As temperatures rise, the warmer atmosphere can hold more water vapor. Evaporation of water from land and oceans also increases. That water has to eventually come back to land and oceans.
Simply, as the atmosphere absorbs more moisture, it dumps more precipitation during storms. Scientists expect about a 7% increase in precipitation intensity during extreme storms for every 1 degree Celsius (1.8 degrees Fahrenheit) of warming.
One factor that determines the severity of floods is whether water falls as rain or snow. The almost instantaneous runoff from rain, as opposed to the slower release of water from melting snow, leads to more severe flooding, landslides and other hazards – particularly in mountain regions and areas downstream, where about a quarter of the global population lives.
A higher proportion of extreme rainfall rather than snow is believed to have been a key contributor to the devastating floods and landslides in the Himalayas in August 2023, though research is still underway to confirm that. Additionally, a 2019 examination of flood patterns across 410 watersheds in the Western U.S. found that the largest runoff peaks driven by rainfall were more than 2.5 times greater than those driven by snowmelt.
As a climate scientist with a background in civil engineering, I am interested in exploring the links between the science of climate change and extreme weather events on one hand and the impacts those events have on our daily lives on the other. Understanding the connections is crucial in order to develop sound strategies to adapt to climate change.
Thirstier atmosphere, more extreme precipitation
As temperatures rise, the warmer atmosphere can hold more water vapor. Evaporation of water from land and oceans also increases. That water has to eventually come back to land and oceans.
Simply, as the atmosphere absorbs more moisture, it dumps more precipitation during storms. Scientists expect about a 7% increase in precipitation intensity during extreme storms for every 1 degree Celsius (1.8 degrees Fahrenheit) of warming.
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