UAE cloud-seeding flights use salt flares to make it rain


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As a twin-turboprop aircraft takes off under the burning desert sun with dozens of salt canisters attached to its wings, UAE meteorological official Abdullah Al Hammadi scans weather maps on computers screens for cloud formations.

At 9,000 feet above sea level, the plane releases salt flares into the most promising white clouds, hoping to trigger rainfall.

"Cloud seeding requires the existence of rainy clouds, and this is a problem as it is not always the case," said Mr Al Hammadi, head of rain enhancement operations at the UAE's National Centre for Meteorology.

The UAE, located in one of the hottest and driest regions on earth, has been leading the effort to seed clouds and increase precipitation, which remains at less than 100 millimetres a year on average.

The effects of climate change, combined with a growing population and economy diversifying into tourism and other areas, have pushed up demand for water in the UAE. The country has relied on expensive desalination plants that make use of seawater.

Officials say they believe cloud seeding can help. Scientists in Abu Dhabi combine shooting hygroscopic, or water-attracting, salt flares with releasing salt nanoparticles, a newer technology, into the clouds to stimulate and accelerate the condensation process and hopefully produce droplets big enough to then fall as rain.

"Cloud seeding increases rainfall rates by approximately 10 per cent to 30 per cent per year... According to our calculations, cloud seeding operations cost much less than the desalination process," Mr Al Hammadi said.

Other countries in the region, including Saudi Arabia and Iran, have announced similar plans as they face historic droughts.

Edward Graham, a meteorologist at the University of the Highlands and Islands in Britain, said the salt used in cloud seeding in the UAE does not harm the environment.

"In terms of carbon footprint, planes that fly up into the clouds are just small planes, when compared to the billions of cars on the planet and the huge planes doing international air travel everyday, it's just a drop in the ocean," he added.

Pilots based at the UAE's Al Ain airport have to be ready to take off at a moment's notice, flying over the reddish-yellow desert before directing their aircraft into the clouds found on the meteorologists' screens.

"Cloud seeding is considered the second hardest challenge for pilots," said one flyer, Ahmed Al Jaberi. "When there is a cloud, we try to figure out the way we need to go in and out of it and avoid thunderstorms or hail."

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At a glance

Global events: Much of the UK’s economic woes were blamed on “increased global uncertainty”, which can be interpreted as the economic impact of the Ukraine war and the uncertainty over Donald Trump’s tariffs.

 

Growth forecasts: Cut for 2025 from 2 per cent to 1 per cent. The OBR watchdog also estimated inflation will average 3.2 per cent this year

 

Welfare: Universal credit health element cut by 50 per cent and frozen for new claimants, building on cuts to the disability and incapacity bill set out earlier this month

 

Spending cuts: Overall day-to day-spending across government cut by £6.1bn in 2029-30 

 

Tax evasion: Steps to crack down on tax evasion to raise “£6.5bn per year” for the public purse

 

Defence: New high-tech weaponry, upgrading HM Naval Base in Portsmouth

 

Housing: Housebuilding to reach its highest in 40 years, with planning reforms helping generate an extra £3.4bn for public finances

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The more serious side of specialty coffee

While the taste of beans and freshness of roast is paramount to the specialty coffee scene, so is sustainability and workers’ rights.

The bulk of genuine specialty coffee companies aim to improve on these elements in every stage of production via direct relationships with farmers. For instance, Mokha 1450 on Al Wasl Road strives to work predominantly with women-owned and -operated coffee organisations, including female farmers in the Sabree mountains of Yemen.

Because, as the boutique’s owner, Garfield Kerr, points out: “women represent over 90 per cent of the coffee value chain, but are woefully underrepresented in less than 10 per cent of ownership and management throughout the global coffee industry.”

One of the UAE’s largest suppliers of green (meaning not-yet-roasted) beans, Raw Coffee, is a founding member of the Partnership of Gender Equity, which aims to empower female coffee farmers and harvesters.

Also, globally, many companies have found the perfect way to recycle old coffee grounds: they create the perfect fertile soil in which to grow mushrooms. 

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7.10pm: Majlis Ghurfat Al Sheif – Handicap (TB) Dh87,500 (D) 1,600m

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9.30pm: Coins Museum – Rated Conditions (TB) Dh95,000 (D) 1,600m

10.05pm: Al Quoz Creative – Handicap (TB) Dh95,000 (T) 1,000m

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Name: Sarah Al Senaani

Age: 35

Martial status: Married with three children - aged 8, 6 and 2

Education: Masters of arts in cultural communication and tourism

Favourite movie: Captain Corelli’s Mandolin

Favourite hobbies: Art and horseback ridding

Occupation: Communication specialist at a government agency and the owner of Atelier

Favourite cuisine: Definitely Emirati - harees is my favourite dish

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Engine: 3.4-litre twin-turbo V6 plus supplementary electric motor

Power: 464hp at 5,200rpm

Torque: 790Nm from 2,000-3,600rpm

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Price: From Dh590,000

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1. Fasting

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4. Shahada

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What you as a drone operator need to know

A permit and licence is required to fly a drone legally in Dubai.

Sanad Academy is the United Arab Emirate’s first RPA (Remotely Piloted Aircraft) training and certification specialists endorsed by the Dubai Civil Aviation authority.

It is responsible to train, test and certify drone operators and drones in UAE with DCAA Endorsement.

“We are teaching people how to fly in accordance with the laws of the UAE,” said Ahmad Al Hamadi, a trainer at Sanad.

“We can show how the aircraft work and how they are operated. They are relatively easy to use, but they need responsible pilots.

“Pilots have to be mature. They are given a map of where they can and can’t fly in the UAE and we make these points clear in the lectures we give.

“You cannot fly a drone without registration under any circumstances.”

Larger drones are harder to fly, and have a different response to location control. There are no brakes in the air, so the larger drones have more power.

The Sanad Academy has a designated area to fly off the Al Ain Road near Skydive Dubai to show pilots how to fly responsibly.

“As UAS technology becomes mainstream, it is important to build wider awareness on how to integrate it into commerce and our personal lives,” said Major General Abdulla Khalifa Al Marri, Commander-in-Chief, Dubai Police.

“Operators must undergo proper training and certification to ensure safety and compliance.

“Dubai’s airspace will undoubtedly experience increased traffic as UAS innovations become commonplace, the Forum allows commercial users to learn of best practice applications to implement UAS safely and legally, while benefitting a whole range of industries.”

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Founders: Iheb Triki and Mohamed Ali Abid
 
Based: Tunisia 
 
Sector: Water technology 
 
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Live: BeIN Sports HD
Second leg: May 1, Santiago Bernabeu, Madrid

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Uefa Champions League semi-final, first leg

Bayern Munich 1
Kimmich (27')

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Marcelo (43'), Asensio (56')

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Favourite vegetable: “I really like the taste of the beetroot, the potatoes and the eggplant we are producing.”

Holiday destination: “I like Paris very much, it’s a city very close to my heart.”

Book: “Das Kapital, by Karl Marx. I am not a communist, but there are a lot of lessons for the capitalist system, if you let it get out of control, and humanity.”

Musician: “I like very much Fairuz, the Lebanese singer, and the other is Umm Kulthum. Fairuz is for listening to in the morning, Umm Kulthum for the night.”

MATCH INFO

Fixture: Thailand v UAE, Tuesday, 4pm (UAE)

TV: Abu Dhabi Sports

TALE OF THE TAPE

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Record: 59-6-2 (38 KOs)
Age: 38
Weight: 146lbs
Height: 166cm
Reach: 170cm

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Age: 29
Weight: 146.2lbs
Height: 175cm
Reach: 173cm

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Sand storm

  • Particle size: Larger, heavier sand grains
  • Visibility: Often dramatic with thick "walls" of sand
  • Duration: Short-lived, typically localised
  • Travel distance: Limited 
  • Source: Open desert areas with strong winds

Dust storm

  • Particle size: Much finer, lightweight particles
  • Visibility: Hazy skies but less intense
  • Duration: Can linger for days
  • Travel distance: Long-range, up to thousands of kilometres
  • Source: Can be carried from distant regions
The%20specs
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Kante (34'), Jorginho (45' pen), Pedro (80')

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Date started: December 24, 2018

Founders: Omer Gurel, chief executive and co-founder and Edebali Sener, co-founder and chief technology officer

Based: Dubai Media City

Number of employees: 42 (34 in Dubai and a tech team of eight in Ankara, Turkey)

Sector: ConsumerTech and FinTech

Cashflow: Almost $1 million a year

Funding: Series A funding of $2.5m with Series B plans for May 2020

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Guide to intelligent investing
Investing success often hinges on discipline and perspective. As markets fluctuate, remember these guiding principles:
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  • Strategic patience: Understand why you’re investing and allow time for your strategies to unfold.
 
 
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Position: legal consultant with Al Rowaad Advocates and Legal Consultants.

Updated: August 31, 2022, 9:09 AM`