Something Odd At The Top Of The World | Aero-News Network
Aero-News Network
RSS icon RSS feed
podcast icon MP3 podcast
Subscribe Aero-News e-mail Newsletter Subscribe

Airborne Unlimited -- Recent Daily Episodes

Episode Date

AMA Drone Report

Airborne-Monday

Airborne-Tuesday

Airborne-Wednesday

Airborne-Thursday

Airborne-Friday

Airborne On ANN

ADR 02.20.17

Airborne 02.20.17

Airborne 02.21.17

Airborne 02.22.17

Airborne 02.23.17

Airborne 02.24.17

Airborne-HD On YouTube

ADR 02.20.17

Airborne 02.20.17

Airborne 02.21.17

Airborne 02.22.17

Airborne 02.23.17

Airborne 02.24.17

Fri, Jun 03, 2005

Something Odd At The Top Of The World

NASA Spacecraft Measures Unusual Arctic Ozone Conditions

Despite near-record levels of chemical ozone destruction in the Arctic this winter,
observations from NASA's Aura spacecraft showed that other atmospheric processes
restored ozone amounts to near average and stopped high levels of harmful ultraviolet
radiation from reaching Earth's surface.

Analyses from Aura's Microwave Limb Sounder indicated Arctic chemical ozone destruction
this past winter peaked at near 50 percent in some regions of the stratosphere, a region of Earth's atmosphere that begins about 8 to 12 kilometers (5 to 7 miles) above Earth's poles.

This was the second highest level ever recorded, behind the 60 percent level estimated for the 1999-2000 winter. Data from another instrument on Aura, the Ozone Monitoring
Instrument, found the total amount of ozone over the Arctic this past March was similar to
other recent years when much less chemical ozone destruction occurred. So what
tempered the ozone loss? The answer appears to lie in this year's unusual Arctic
atmospheric conditions.

"This was one of the most unusual Arctic winters ever," said scientist Dr. Gloria Manney of
NASA's Jet Propulsion Laboratory, Pasadena, CA, who led the Microwave Limb Sounder
analyses. "Arctic lower stratospheric temperatures were the lowest on record. But other
conditions like wind patterns and air motions were less conducive to ozone loss this year."

While the Arctic polar ozone was being chemically destroyed toward the end of winter,
stratospheric winds shifted and transported ozone-rich air from Earth's middle latitudes into the Arctic polar region, resulting in little net change in the total amount of ozone. As a
result, harmful ultraviolet radiation reaching Earth's surface remained at near-normal levels.

FMI: www.nasa.gov/vision/earth/lookingatearth/ozone-aura.html

Advertisement

More News

Counting Down! ANN's Infamous April 1st Edition's Just Around The Corner!

Get Your Wacky Ideas In NOW! ANN E-I-C Note: Folks... we gotta warn you... our Annual April 1st Editions are LEGENDARY -- and this WILL be our best April 1st Edition yet. Based on >[...]

Airborne 02.24.17: RV-10 Suit Dismissed, 2016 GA Sales, Red Tail Legacy

Also: Falcon 9 Landing, TFR Busts, Denton Airshow, QF-16, Treasure Coast, 'Fly Safe' Campaign, Juno Mission When the news first came out, in 2015, that Van's Aircraft was sued for >[...]

Aero-News: Quote of the Day (02.26.17)

"This Symposium will provide stakeholders with the opportunity to talk face-to-face with a cross-section of government and industry representatives about regulations, research, and>[...]

TNA Selected As The Exclusive Electric Aircraft Tug Provider For Sun 'n Fun

More Than 5,000 Aircraft Are Expected To Attend Following an agreement with the Sun 'n Fun International Fly-In and Expo, TNA Aviation Technologies announced that the Company has b>[...]

Treasure Coast International Airport Gets $1.5 Million Federal Grant

Will Go Towards Construction Of A New Maintenance Hangar The U.S. Department of Commerce has awarded a $1.5 million AIP grant to Treasure Coast International Airport (KFPR) in Fort>[...]

blog comments powered by Disqus



Advertisement

Advertisement

Podcasts

Advertisement

© 2007 - 2017 Web Development & Design by Pauli Systems, LC