- 12 hours ago ... New Research Shows How 'Atmospheric Rivers' Wreak Havoc Around The Globe ... Waliser studied two decades of storms around the globe at ...
- 12 hours ago ... New Research Shows How 'Atmospheric Rivers' Wreak Havoc Around The Globe ... Waliser studied two decades of storms around the globe at ...
- New Research Shows How 'Atmospheric Rivers' Wreak Havoc Around The Globe. KALW. Story by KALW. February 20, 2017 9:00 AM. 1 upvotes. Upvote this ...
Must Reads
New Research Shows How 'Atmospheric Rivers' Wreak Havoc Around The Globe
The atmospheric rivers that soaked California this winter did some good — they ended an epic drought in the state.
"This has been a very active winter, atmospheric river-wise," reports Jeff Zimmerman of the National Weather Service. "We've probably had 10 or more ... this winter." The norm is just a few; being a La Nina year, with cooler water in the eastern Pacific, was part of the reason for the abundance.
Waliser studied two decades of storms around the globe at mid-latitudes — that is, outside the tropics. When he focused on the very windiest — the top 2 percent — he found that "atmospheric rivers are typically associated with 30 and even up to 50 percent of those very extreme cases." Atmospheric rivers were also responsible for almost that percentage of the very wettest storms, too.
But the windiness was surprising. Waliser found that winds during an atmospheric river are typically twice the speed of the average storm. He says emergency responders need to know that.
"Not only do [atmospheric rivers] come with this potential for flooding hazards," he says, "they also come with potential for high impact winds and extremes that can produce hazardous conditions."
In fact, the atmospheric river that hit California on Jan. 8 knocked over a famous — and gigantic — sequoia in a state park.
Waliser's research appears in the journal Nature Geoscience. He says his next project is to find out if climate change will make atmospheric rivers more frequent.
To the best of my ability I write about my experience of the Universe Past, Present and Future
No comments:
Post a Comment