Inside the UAE's cloud seeding push: how AI and nanomaterials are making more rain

DUBAI - The UAE is taking cloud seeding to the next level by combining artificial intelligence, nanotechnology and advanced weather forecasting to squeeze more rain from the skies over one of the world's most arid landscapes.

At the heart of the effort is a deceptively simple question: where do the seeding particles actually go once they are inside a cloud? The National Centre of Meteorology (NCM) likens the process to spraying perfume and watching it drift through a room — what scientists call dispersion, and what has become central to making each mission count.

Why dispersion matters

Cloud seeding works by introducing particles that act as condensation nuclei — surfaces on which water vapour can condense or freeze — helping small droplets grow heavy enough to fall as rain. But releasing the material is only half the job. Where those particles travel, and how they interact with droplets and ice crystals, decides whether a flight succeeds. Laboratory instruments now track those interactions in fine detail, allowing researchers to fine-tune how and where agents are released, and deepening the broader understanding of how rain forms in the first place.

From the lab to the sky

That research has reshaped the tools the UAE flies with. Seeding agents are now manufactured locally in two main forms. The conventional option is the hygroscopic flare, made in two sizes for aircraft and ground generators; fired from a plane, it burns for a few minutes, releasing salt crystals mixed with magnesium, sodium chloride and potassium chloride into a cloud's updrafts to accelerate droplet growth.
The newer breakthrough is a nanomaterial powder developed through the UAE Research Programme for Rain Enhancement Science (UAEREP), which the centre says is up to three times more effective than flares and disperses the instant an ignitor opens its cap, with no lengthy burn. Ground-based generators, positioned in mountainous areas, exploit terrain and local air currents to feed seeding material into low-lying clouds.

Inside a mission

The science only pays off with precise operations. Each mission starts with data from radars, satellites and ground stations, with weather surveillance radar running around the clock and live camera feeds from 26 locations across the country. When a promising cloud builds, an aircraft first circles it to read its structure and identify the right moment and place to act, before flying in to release its payload — typically 48 flares on a single three-hour flight.

The next frontier

The NCM is testing electric charging, delivering electrical charges directly into clouds to stimulate precipitation, and building numerical models that simulate the chemical, physical and electrical interactions inside a cloud. AI applications are being developed to read cloud conditions in real time and pinpoint the ideal moment to seed. More exotic approaches — vertical air currents generated by jet engines, and lasers to stimulate cloud formation — have been explored but remain experimental.

Why it matters

The stakes are practical. The UAE has flown around 80 cloud seeding missions since the start of 2026, targeting convective clouds with strong updrafts and vertical development, aiming to lift rainfall by 10 to 25 per cent. Because those clouds cannot be steered, rainfall can vary sharply from one district to the next — which is precisely why timing and placement matter so much.

The work sits within a national strategy to replenish groundwater and shore up long-term water security, and the NCM says operations will continue through 2026 and beyond, whenever suitable clouds appear.