STUDY CLAIM: Houston skyscrapers may have worsened Hurricane Harvey rain – Storm ‘snagged on the skyscrapers of Houston, causing it to slow and dump more rain’

Climate Depot | 11/15/2018 | Admin
Claw987Claw987 (Posted by) Level 4
WASHINGTON (AP) — Humans helped make recent devastating U.S. hurricanes wetter but in different ways, two new studies find.

Hurricane Harvey snagged on the skyscrapers of Houston, causing it to slow and dump more rain than it normally would, one study found. The city’s massive amounts of paving had an even bigger impact by reducing drainage. Land development in the metro area, on average, increased the chances of extreme flooding by 21 times, study authors said.

Study - Year - Hurricanes - Maria - Irma

A second study looked at last year’s major Hurricanes Maria and Irma and 2005’s deadly Katrina and used computer simulations to see what would have happened if there had been no human-caused global warming. The study found that climate change significantly increased rainfall from those three storms, but did not boost their wind speed.

Both studies are in Wednesday’s journal Nature .

Houston - Drag - Harvey - Storm - Skyscrapers

Houston was a literal drag on Harvey as it sloshed through, with the storm getting tripped up by the skyscrapers, said study co-author Gabriele Villarini, a civil and environmental engineering professor at the University of Iowa.

Co-author Gabe Vecchi, a climate scientist at Princeton University, said that forced the storm to move up higher, causing more concentrated rain over Houston and...
(Excerpt) Read more at: Climate Depot
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