Commonly used climate models may be significantly underestimating the risk of floods this century, according to a new study by Yale researchers.
Accurately pinpointing the magnitude and frequency of extreme rainfall hinges not only on tracking rainfall, but also on the way researchers model climate change, the study says. Previous studies averaged all the available climate models in order to figure out how much rain the planet will get in coming decades, but the Yale researchers only used the group of models that predict that climate change will result in an increase in precipitation efficiency—how much of a falling raindrop reevaporates into the atmosphere before it hits Earth’s surface.
They excluded models that forecast a decrease, since scientific observations over the past two decades indicate that climate change is yielding an increase in precipitation efficiency. The results show that it is possible that there will be as much as a twofold increase in the volume of extreme rainfall in the 21st century compared to what previous studies estimated.
Lawmakers could help prepare for extreme rainfall via fund initiatives that harden home infrastructure, such as rooftops, and improve drainage systems.
Related Stories
Codes and Standards | Nov 6, 2017
AIA releases new architect commissioning document
It will be used with the standard form for owner/consultant contracts.
Codes and Standards | Nov 2, 2017
ASHRAE releases new version of Thermal Comfort Standard
Update includes calculations from direct solar radiation.
Codes and Standards | Nov 1, 2017
Drone users can now get instant authorization from FAA
Skyward offers app to receive permission for low altitude flights.
Codes and Standards | Oct 31, 2017
Real estate giant launches global tenant health and wellness certification initiative
Tishman Speyer will use Fitwel health certification system to guide building improvements.
Codes and Standards | Oct 30, 2017
AIA revises architect scope documents in latest contract form release
Design-bid-build forms last updated in 2007.
Codes and Standards | Oct 26, 2017
Boston’s Old South Church asks tower developer for $19 million for casting shade
Request highlights ongoing conflict between developers and residents over right to sunshine.
Codes and Standards | Oct 24, 2017
Asphalt roofing design guide now available in digital form
Recently updated Modified Bitumen Design Guide can be viewed on smartphones and tablets.
Codes and Standards | Oct 23, 2017
Energy efficiency investments on the rise; will increase next year
Survey of facility management executives shows onsite renewables, energy storage will spike in 2018.
Codes and Standards | Oct 20, 2017
AIA contract document updates include new BIM, digital data provisions
Documents are structurally different from 2007, 2008 versions.
Codes and Standards | Oct 19, 2017
IAPMO seeks proposals for 2021 Uniform Plumbing Code, Uniform Mechanical Code
The deadline is March 16, 2018.