Find out what artificial rain is and its benefits for Jakarta’s air

TIME.CO, Jakarta – National Agency for Research and Innovation (BRIN) along with a number of related agencies have created weather modification technology or artificial rain in and around Jakarta to reduce air pollution from August 26 to 28, 2023.

“The latest forecast from the BMKG (Meteorology, Climatology and Geophysics Agency) is that there is a possibility that clouds will grow from August 26 to 28. We standbyBRIN Weather Modification Technology Management Laboratory (TMC) coordinator Budi Harsoyo said via text message on Thursday, Aug. 24, 2023.

What is Artificial Rain?

Cited by the Journal of Informatics Engineering (2017), artificial rain is a human effort to increase naturally falling precipitation by changing the physical method in clouds. The physical method in question includes the processes of collisions and fusions (collision and coalescence) and ice formation (ice nucleation).

So artificial rain doesn’t actually create something out of nothing into existence (rain). To produce artificial rain, clouds with sufficient water content are needed for the rain to touch the ground. The materials used in the manufacturing process of artificial rain are called planting materials.

Advantages of artificial rain

BRIN Technology Assessment and Application Agency (BPPT) Center for Weather Modification Technology (BBTMC) Chief Tri Handoko Seto explained the benefits of artificial rain for disaster mitigation purposes caused by climate and weather.

“For example, to deal with drought, floods and haze caused by land and forest fires or karhutla. In addition, TMC has also been entrusted with the task of ensuring national strategic projects and important national and international state activities, both to reduce the turmoil caused by smoking and to prevent the activity places from being hampered by extreme weather conditions,” said Seto , quoted from the BPPT website BRIN., Tuesday, Aug. 29, 2023.

Several state activities involving TMC operations, including:

– Sea Games 2011 in South Sumatra as a safeguard measure to reduce rainfall.

– The National Sports Week (PON) 2013 in Riau was disturbed by smog in the sports field area.

– Islamic Solidarity Games 2013 in South Sumatra.

– Redistribution of rainfall in DKI Jakarta in 2013 and 2014.


– Rainfall reduction in Balikpapan-Samarinda (Balsam) Toll Road Development Project area in 2018.

– Asian Games 2018 in Palembang and Jakarta.

– IMF-World Bank Annual Meeting 2018 in Bali.

In addition, artificial rain is also usually used to help fill reservoirs, lakes, irrigation, clean water supply needs, and hydroelectric power plants (PLTA). So artificial rain is not only organized to deal with hydrometeorological disasters, but also focuses on supporting the agricultural sector.

How to make artificial rain

According to a report in the Journal of Disaster Management Dialogue (2013), TMC is done through cloud seeding activities. A number of hygroscopic (water-absorbing) particles that function as aerosols are added to clouds to speed up the process of water droplet formation so that rain occurs more quickly.

So, according to a young researcher from the BPPT Artificial Rain Coordinator of the TMC Field Technical Implementation Unit (UPT) in Central Kalimantan Province, Budi Harsoyo, without the presence of clouds, there will be no cloud seeding activity or what which is known as “No Clouds, No Seeding”. The cloud in question is a type of cumulus cloud (Cu) with a high water vapor content and is visually shaped like cauliflower or broccoli.

Approximately IDR 113-114 million is required for one day of artificial rain operations, depending on the location and in accordance with Government Regulation (PP) No. 36 of 2008 concerning Types and tariffs of non-tax state revenues (PNBP) applicable to the BPPT.


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