Atmosphere

Tropopause cooling a part of natural decadal cycle

The cooling trend observed in the late 20th century at the transition between the troposphere and stratosphere at an altitude of about 15 kilometers is usually believed to be caused by human influences. Now, climate scientists from Kiel And Bergen (Norway) have...

July 28, 2016

Noctilucent clouds storm from July 12 - 14 over Denmark

You are not dreaming, you can see waves, shock fronts or waterfalls in the night sky! On the nights of the 12-13th and 13-14th of July 2016, Denmark has witnessed two very powerful and bright noctilucent cloud shows in a row. The brightest and broadest I can...

July 16, 2016

Antarctic ozone hole shows signs of healing

An international team of scientists has observed first clear signs that the hole in the Antarctic ozone layer is beginning to close. Led by Professor Susan Solomon of the Massachusetts Institute of Technology, the team found that the September ozone hole had shrunk...

July 01, 2016

Noctilucent clouds in motion

On the night of June 21, 2016, photographer Derek Mellott from the town of Gibbons, Alberta, Canada recorded this fantastic display of noctilucent clouds (NLCs). "They were the brightest I have ever seen," he said. "It seemed like a good time to...

June 22, 2016

Significant increase in frequency and intensity of sandstorms in the Middle East over the past 15 years

A significant increase in frequency and the intensity of sand and dust storms has been observed in the Middle East over the past 15 years. Although the Middle East has been the worst hit, with Iran and Kuwait the most affected, meteorologists say they are now also...

June 17, 2016

ELVE captured above a thunderstorm in Colorado, US

On June 8, 2016, amateur astronomer Thomas Ashcraft captured an enormous ring of light high above a thunderstorm in southeast Colorado. "It only lasted about a millisecond, but it was definitely there. The ring was about 300 km (186 miles) wide," Ashcraft...

June 13, 2016

Cloud seeding flight suspected to aggravate major flooding in Tasmania

A cloud-seeding company Hydro Tasmania performed the seeding over the Derwent River watershed a day before the widespread flooding, caused by intense rainstorms, began on June 6, 2016. According to Premier Will Hodgman, the Energy Minister Matthew Groom is looking...

June 10, 2016

Rare form of transient luminous event over Oklahoma, US

An enormous swarm of sprites was observed across the top of a thunderstorm during a severe weather outbreak in Oklahoma, US on May 23, 2016. The phenomenon was recorded by amateur astronomer Thomas Ashcraft, almost 640 km (400 miles) away, SpaceWeather.com reports,...

May 27, 2016

Daylong dust storm closes freeway on Arizona-New Mexico border 4th time since late April

For the fourth time since late April 2016, a dust storm has closed a 62-mile stretch (101 km) of a major freeway on both sides of the Arizona-New Mexico border. The latest closure happened on Friday, May 6, after weather front that produced thunderstorms and strong...

May 07, 2016

Expansion of tropics shifting high altitude clouds toward poles

NASA's research team conducted a study on 30-years of satellite data to reveal that a recorded trend of high altitude clouds in the mid-latitude which are shifting toward the poles is primarily caused by the expansion of the tropics. One of the most important...

May 06, 2016

Extreme weather over northwest Europe induced by changes over Greenland

Newest research conducted at the University of Sheffield suggests the changes identified in weather systems developing over Greenland are related to extreme weather patterns over northwest Europe, such as unusually wet conditions reported across the UK during the...

May 03, 2016

Lake Maracaibo in Venezuela, the place of highest lightning activity on Earth

Researchers have utilized the observations from the Lightning Imaging Sensor onboard NASA's Tropical Rainfall Measurement Mission to investigate which location has a maximum lightning activity on Earth. According to data analysis, Lake Maracaibo in Venezuela is...

May 03, 2016

Major sandstorm sweeps through northwest China

A major sandstorm has swept through parts of northwest China's Xinjiang Uygur Autonomous Region on May 1, 2016, and continued into May 2, disrupting traffic and causing severe air pollution. The sandstorm has struck some counties in south Xinjiang since Saturday...

May 02, 2016

Massive dust storm sweeps through Kathmandu, Nepal

A massive dust storm engulfed Kathmandu, Nepal for 45 minutes on March 28, 2016, injuring, at least, a half a dozen people and causing traffic chaos. For the past one week, Kathmandu and many other parts of the country have been shrouded in a blanket of haze, with...

March 28, 2016

"Light pillars' observed over south Wales, UK

A very rare atmospheric optical phenomenon called 'light pillars' was observed in the night sky above south Wales about 21:50 UTC on Friday, March 11, 2016, the same day a CME impact sparked surprising G2 - Moderate geomagnetic storm with auroras seen as far...

March 14, 2016

Sudden stratospheric warming to bring a snap of cold weather over UK

Meteorologists from the UK Met Office have predicted a sudden stratospheric warming (SSW) will occur in early March 2016. The phenomena could affect the surface weather, increasing the risk of prolonged wintry conditions over parts of northern Europe and the UK. The...

March 01, 2016

Strong ozone depletion expected over Arctic in the coming weeks

POLSTRAC campaign initiated by the Karlsruhe Institute of Technology (KIT) was actively engaged in measurements in Arctic since the end of 2015. The research team has observed vertically extended polar stratospheric clouds, in unusually low regions of the...

February 18, 2016