您现在的位置是:休閑 >>正文
【】
休閑3人已围观
简介The Atlantic Ocean is currently hurricane fuel. Thanks to, among other factors, unusually warm sea s ...
The Atlantic Ocean is currently hurricane fuel.
Thanks to, among other factors, unusually warm sea surface temperatures, the National Oceanic and Atmospheric Administration (NOAA) now expects "an extremely active" Atlantic hurricane season, bumped up from the agency's earlier prediction of "above normal" activity. In an announcement Thursday, NOAA said this storm prediction is "one of the most active seasonal forecasts that NOAA has produced in its 22-year history of hurricane outlooks."
Already, the 2020 season has broken numerous records for the number of storms formed by this time of year. Now, the most active time of year is just around the corner, as most hurricanes form from about mid-August through late October.
Critically, more storms amp the odds of hurricanes striking land.

"In general, more active hurricane seasons have more landing hurricanes," Philip Klotzbach, a hurricane researcher at Colorado State University, told Mashable in late April.
Colorado State's updated storm outlook is similar to NOAA's, but expects a little bit more activity. The university predicts 12 hurricanes and five major hurricanes (111 mph winds or higher), whereas NOAA expects between seven and 11 hurricanes, three to six of which could be major storms.
"This year, we expect more, stronger, and longer-lived storms than average, and our predicted ACE [Accumulated Cyclone Energy] range extends well above NOAA’s threshold for an extremely active season," NOAA’s lead seasonal hurricane forecaster, Gerry Bell, said in a statement. ACE is the measure of a season's total storm activity.
Tweet may have been deleted
Tweet may have been deleted
The big contributors to the extremely active season are:
Warmer than usual ocean temperatures. "Ocean temperatures in the Atlantic are running much warmer than normal," Brian Tang, an atmospheric scientist at the University of Albany, told Mashable in July. Warmer oceans fuel tropical storms as more water naturally evaporates into the air, giving storms energy and moisture to intensify. Overall, global oceans are absorbing nearly unfathomable amounts of heat as they soak up over 90 percent of the warmth created by human-caused climate change. (The ocean's surface has warmed by nearly 2 degrees Fahrenheit, or 1 degree Celsius, since 1900.)
What's more, the Atlantic Ocean has also naturally been in a warmer phase since around 1995, something called the Atlantic Multi-Decadal Oscillation. This added warmth creates more ideal conditions for hurricanes to form.
Hurricane scientists don't expect strong east-driving winds blowing through the Caribbean this year. These winds pummel hurricanes (called "wind shear"). "It shears or tears apart storms," Klotzbach told Mashable.
A strong West African monsoon season is likely this year. Most powerful Atlantic hurricanes are seeded by unstable air and thunderstorms traveling west from Africa. More clouds and storm activity in West Africa are linked to favorable conditions for hurricanes.
A number of potent hurricane ingredients, then, have combined in 2020. Importantly, when thunderstorms do start journeying over the part of the Atlantic where most hurricanes form (called the Atlantic Main Development Region), they'll get a boost from well-above average ocean temperatures. This area is about 1 degree Fahrenheit warmer than usual — which is a big change for the oceans.
"That extra degree makes it more likely the thunderstorms will survive going across the Atlantic," Chris Slocum, a research meteorologist at the NOAA Center for Satellite Applications and Research, told Mashable in July.
In Earth's warmer future over the coming decades and beyond, hurricane researchers don't expect more hurricanes overall. However, they expect hurricanes to grow more intense, meaning higher wind speeds and more damaging and dangerous storms.
"We think there will be an uptick in the most intense storms," said the University of Albany's Tang.
Tags:
转载:欢迎各位朋友分享到网络,但转载请说明文章出处“夫榮妻貴網”。http://new.maomao321.com/news/44d2399932.html
相关文章
Snapchat is about to explode in popularity, report says
休閑Snapchat is about to have a couple of really good years. 。The company will see huge gains in the numb ...
【休閑】
阅读更多You won't see the moon look this way again until 2034
休閑A full moon the likes of which we haven't seen for almost 70 years will grace skies around the world ...
【休閑】
阅读更多Why women in the UK just walked out of work
休閑LONDON -- Women from all over the UK have just downed tools and left their workplaces in an act of p ...
【休閑】
阅读更多
热门文章
- Australian football makes history with first LGBT Pride Game
- This Donald Trump waxwork will send shivers down your spine
- Google Maps may soon let Indians locate clean public toilets
- Photoshop battle predicts Trump's White House decor
- Tourist survives for month in frozen New Zealand wilderness after partner dies
- Klay Thompson casually swigs a beer during post
最新文章
What brands need to know about virtual reality
Snapchat's Spectacles vending machine broke just hours after launching
Kanye West goes on a rant and ends his concert early in Sacramento
PBS journalist Gwen Ifill dies at 61
New Zealand designer's photo series celebrates the elegance of aging
You will be watched by Donald Trump
