UAE researchers have revealed new details about how dust is travelling from the Sahara to the Alps to cause snowy pistes and glaciers to turn a dramatic red, pink or orange.
The striking colouration, which happens when the dust causes the growth of microalgae, makes the snow melt more easily and is likely to become more frequent because of climate change.
Scientists at Khalifa University in Abu Dhabi reported that flows of air called atmospheric rivers are closely linked to the transport of dust from the Sahara to as far as northern Europe.
“In our study, we found an increasing trend in atmospheric rivers and associated severe dust transport episodes towards Europe,” said an author of the study, Dr Diana Francis, head of Khalifa University’s Environmental and Geophysical Sciences (Engeos) Laboratory.
We can expect an increase in the frequency of pink or 'bloody' snow
Dr Diana Francis,
Khalifa University’s Engeos Laboratory
“This implies that snowmelt can be expected to occur more frequently under global warming and since the presence of liquid water on the snow marks the onset of the algae growth, we can expect an increase in the frequency of pink or bloody snow.”
Titled, Atmospheric Rivers Drive Exceptional Saharan Dust Transport Towards Europe, the study is being published in the journal Atmospheric Research.
The study investigated, in particular, an “extreme dust transport event” in February this year linked to an atmospheric river that stretched from Africa to northern Europe.
Described as “elongated and narrow bands of clouds and high water vapour content”, the atmospheric rivers transport air from low latitudes towards the poles.
The dust and the microalgae make the snow darker. Because darker surfaces absorb more light, the red snow reflected 40 per cent less light than white snow, making it warm up and melt more easily.
This process amplifies the effects of climate change, which threatens glaciers and other areas covered with snow because of temperature increases.
Reduced snow in the Alps
The Alps have experienced a severe reduction in the depth of snow over the past 40 years, with an eight per cent fall recorded per decade in areas below 2,000 metres. This has badly affected many Alpine ski resorts.
While the influx of warm and moist air is a key cause of the melting of ice and snow, dust deposition adds to the effect.
Between 6 February and 6 March this year, snow depth over the Alps fell by half, partly because of the darkening from the deposition of dust.
Instead of being pink, the snow could turn orange or green depending on the type of microalgae that grow, said Dr Francis.
In March 2018, Saharan dust turned snow orange in eastern Europe and Russia and reduced the length of snow cover in some areas by as much as 30 days, the scientists said.
“Dust aerosols contain a lot of minerals such as clays, calcite, quartz, feldspars and iron oxides which could provide nutriments and other element for the microorganisms present in the algae bloom,” said Dr Francis.
“More scientific work is needed to link the type of microalgae growing on the snow to the impurities found on it.”
A similar phenomenon is seen in Greenland, where Dr Francis said dust and other impurities cause the formation of small black holes in the ice called cryoconites, which speed up melting.
Other authors of the new study work at universities in Los Angeles, Santiago in Chile and Grenoble, a city that sits at the foot of the French Alps.
Terror attacks in Paris, November 13, 2015
- At 9.16pm, three suicide attackers killed one person outside the Atade de France during a foootball match between France and Germany
- At 9.25pm, three attackers opened fire on restaurants and cafes over 20 minutes, killing 39 people
- Shortly after 9.40pm, three other attackers launched a three-hour raid on the Bataclan, in which 1,500 people had gathered to watch a rock concert. In total, 90 people were killed
- Salah Abdeslam, the only survivor of the terrorists, did not directly participate in the attacks, thought to be due to a technical glitch in his suicide vest
- He fled to Belgium and was involved in attacks on Brussels in March 2016. He is serving a life sentence in France
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Which honey takes your fancy?
Al Ghaf Honey
The Al Ghaf tree is a local desert tree which bears the harsh summers with drought and high temperatures. From the rich flowers, bees that pollinate this tree can produce delicious red colour honey in June and July each year
Sidr Honey
The Sidr tree is an evergreen tree with long and strong forked branches. The blossom from this tree is called Yabyab, which provides rich food for bees to produce honey in October and November. This honey is the most expensive, but tastiest
Samar Honey
The Samar tree trunk, leaves and blossom contains Barm which is the secret of healing. You can enjoy the best types of honey from this tree every year in May and June. It is an historical witness to the life of the Emirati nation which represents the harsh desert and mountain environments
Skoda Superb Specs
Engine: 2-litre TSI petrol
Power: 190hp
Torque: 320Nm
Price: From Dh147,000
Available: Now
Padmaavat
Director: Sanjay Leela Bhansali
Starring: Ranveer Singh, Deepika Padukone, Shahid Kapoor, Jim Sarbh
3.5/5
Springsteen: Deliver Me from Nowhere
Director: Scott Cooper
Starring: Jeremy Allen White, Odessa Young, Jeremy Strong
Rating: 4/5
MATCH INFO
Uefa Champions League semi-final, first leg
Bayern Munich v Real Madrid
When: April 25, 10.45pm kick-off (UAE)
Where: Allianz Arena, Munich
Live: BeIN Sports HD
Second leg: May 1, Santiago Bernabeu, Madrid
Libya's Gold
UN Panel of Experts found regime secretly sold a fifth of the country's gold reserves.
The panel’s 2017 report followed a trail to West Africa where large sums of cash and gold were hidden by Abdullah Al Senussi, Qaddafi’s former intelligence chief, in 2011.
Cases filled with cash that was said to amount to $560m in 100 dollar notes, that was kept by a group of Libyans in Ouagadougou, Burkina Faso.
A second stash was said to have been held in Accra, Ghana, inside boxes at the local offices of an international human rights organisation based in France.
MEYDAN%20RACECARD
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Indika
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Key products and UAE prices
iPhone XS
With a 5.8-inch screen, it will be an advance version of the iPhone X. It will be dual sim and comes with better battery life, a faster processor and better camera. A new gold colour will be available.
Price: Dh4,229
iPhone XS Max
It is expected to be a grander version of the iPhone X with a 6.5-inch screen; an inch bigger than the screen of the iPhone 8 Plus.
Price: Dh4,649
iPhone XR
A low-cost version of the iPhone X with a 6.1-inch screen, it is expected to attract mass attention. According to industry experts, it is likely to have aluminium edges instead of stainless steel.
Price: Dh3,179
Apple Watch Series 4
More comprehensive health device with edge-to-edge displays that are more than 30 per cent bigger than displays on current models.
UAE currency: the story behind the money in your pockets
MATCH INFO
Group B
Bayern Munich v Tottenham, midnight (Thursday)
Wydad 2 Urawa 3
Wydad Nahiri 21’, Hajhouj 90'
Urawa Antonio 18’, 60’, Kashiwagi 26’
Director: Laxman Utekar
Cast: Vicky Kaushal, Akshaye Khanna, Diana Penty, Vineet Kumar Singh, Rashmika Mandanna
Rating: 1/5
Labour dispute
The insured employee may still file an ILOE claim even if a labour dispute is ongoing post termination, but the insurer may suspend or reject payment, until the courts resolve the dispute, especially if the reason for termination is contested. The outcome of the labour court proceedings can directly affect eligibility.
- Abdullah Ishnaneh, Partner, BSA Law
GAC GS8 Specs
Engine: 2.0-litre 4cyl turbo
Power: 248hp at 5,200rpm
Torque: 400Nm at 1,750-4,000rpm
Transmission: 8-speed auto
Fuel consumption: 9.1L/100km
On sale: Now
Price: From Dh149,900
ICC Awards for 2021
MEN
Cricketer of the Year – Shaheen Afridi (Pakistan)
T20 Cricketer of the Year – Mohammad Rizwan (Pakistan)
ODI Cricketer of the Year – Babar Azam (Pakistan)
Test Cricketer of the Year – Joe Root (England)
WOMEN
Cricketer of the Year – Smriti Mandhana (India)
ODI Cricketer of the Year – Lizelle Lee (South Africa)
T20 Cricketer of the Year – Tammy Beaumont (England)
Singham Again
Director: Rohit Shetty
Stars: Ajay Devgn, Kareena Kapoor Khan, Ranveer Singh, Akshay Kumar, Tiger Shroff, Deepika Padukone
Rating: 3/5
UAE currency: the story behind the money in your pockets
Afro%20salons
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Results
Light Flyweight (49kg): Mirzakhmedov Nodirjon (UZB) beat Daniyal Sabit (KAZ) by points 5-0.
Flyweight (52kg): Zoirov Shakhobidin (UZB) beat Amit Panghol (IND) 3-2.
Bantamweight (56kg): Kharkhuu Enkh-Amar (MGL) beat Mirazizbek Mirzahalilov (UZB) 3-2.
Lightweight (60kg): Erdenebat Tsendbaatar (MGL) beat Daniyal Shahbakhsh (IRI) 5-0.
Light Welterweight (64kg): Baatarsukh Chinzorig (MGL) beat Shiva Thapa (IND) 3-2.
Welterweight (69kg): Bobo-Usmon Baturov (UZB) beat Ablaikhan Zhussupov (KAZ) RSC round-1.
Middleweight (75kg): Jafarov Saidjamshid (UZB) beat Abilkhan Amankul (KAZ) 4-1.
Light Heavyweight (81kg): Ruzmetov Dilshodbek (UZB) beat Meysam Gheshlaghi (IRI) 3-2.
Heavyweight (91kg): Sanjeet (IND) beat Vassiliy Levit (KAZ) 4-1.
Super Heavyweight ( 91kg): Jalolov Bakhodir (UZB) beat Kamshibek Kunkabayev (KAZ) 5-0.
ELIO
Starring: Yonas Kibreab, Zoe Saldana, Brad Garrett
Directors: Madeline Sharafian, Domee Shi, Adrian Molina
Rating: 4/5
Mica
Director: Ismael Ferroukhi
Stars: Zakaria Inan, Sabrina Ouazani
3 stars
Gender equality in the workplace still 200 years away
It will take centuries to achieve gender parity in workplaces around the globe, according to a December report from the World Economic Forum.
The WEF study said there had been some improvements in wage equality in 2018 compared to 2017, when the global gender gap widened for the first time in a decade.
But it warned that these were offset by declining representation of women in politics, coupled with greater inequality in their access to health and education.
At current rates, the global gender gap across a range of areas will not close for another 108 years, while it is expected to take 202 years to close the workplace gap, WEF found.
The Geneva-based organisation's annual report tracked disparities between the sexes in 149 countries across four areas: education, health, economic opportunity and political empowerment.
After years of advances in education, health and political representation, women registered setbacks in all three areas this year, WEF said.
Only in the area of economic opportunity did the gender gap narrow somewhat, although there is not much to celebrate, with the global wage gap narrowing to nearly 51 per cent.
And the number of women in leadership roles has risen to 34 per cent globally, WEF said.
At the same time, the report showed there are now proportionately fewer women than men participating in the workforce, suggesting that automation is having a disproportionate impact on jobs traditionally performed by women.
And women are significantly under-represented in growing areas of employment that require science, technology, engineering and mathematics skills, WEF said.
* Agence France Presse
Quick pearls of wisdom
Focus on gratitude: And do so deeply, he says. “Think of one to three things a day that you’re grateful for. It needs to be specific, too, don’t just say ‘air.’ Really think about it. If you’re grateful for, say, what your parents have done for you, that will motivate you to do more for the world.”
Know how to fight: Shetty married his wife, Radhi, three years ago (he met her in a meditation class before he went off and became a monk). He says they’ve had to learn to respect each other’s “fighting styles” – he’s a talk it-out-immediately person, while she needs space to think. “When you’re having an argument, remember, it’s not you against each other. It’s both of you against the problem. When you win, they lose. If you’re on a team you have to win together.”
GOLF’S RAHMBO
- 5 wins in 22 months as pro
- Three wins in past 10 starts
- 45 pro starts worldwide: 5 wins, 17 top 5s
- Ranked 551th in world on debut, now No 4 (was No 2 earlier this year)
- 5th player in last 30 years to win 3 European Tour and 2 PGA Tour titles before age 24 (Woods, Garcia, McIlroy, Spieth)
if you go
The flights
Air Astana flies direct from Dubai to Almaty from Dh2,440 per person return, and to Astana (via Almaty) from Dh2,930 return, both including taxes.
The hotels
Rooms at the Ritz-Carlton Almaty cost from Dh1,944 per night including taxes; and in Astana the new Ritz-Carlton Astana (www.marriott) costs from Dh1,325; alternatively, the new St Regis Astana costs from Dh1,458 per night including taxes.
When to visit
March-May and September-November
Visas
Citizens of many countries, including the UAE do not need a visa to enter Kazakhstan for up to 30 days. Contact the nearest Kazakhstan embassy or consulate.
