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January 26, 2025 | 12:22 pm
TEMPO.CO, Jakarta - Indonesia's National Research and Innovation Agency (BRIN) is collaborating with the Research Institute for Sustainable Humanosphere (RISH) Kyoto University and the University of Colorado to study the weather with Radiosonde Balloons. In the research in Bukit Kototabang, Agam Regency, West Sumatra, researchers collected more accurate and real-time weather data.
Associate Researcher at the BRIN Climate and Atmospheric Research Center, Noersomadi, said that the balloons that were flown could measure turbulence in the troposphere, such as temperature, air pressure, air humidity, and wind speed. The measurements were carried out at a tropopause altitude of 16-19 kilometers.
"This research is equipped with equipment such as signal wave receiver antennas," he said in a written statement, quoted on Sunday, January 26, 2025.
According to Noersomadi, the radiosonde sensor is attached to a balloon filled with hydrogen gas. Radio waves will later capture signals that are connected to a computer. The main function of the radiosonde balloon, he said, is to measure temperature, humidity, air pressure, and wind speed and direction. This tool also supports weather and climate change predictions, as well as supporting scientific research and flight navigation.
Noersomadi said that Bukit Kototabang was chosen as the research location on January 6-17 because it has an equatorial radar (EAR) to measure wind profiles and turbulence at an altitude of 150 meters. The launch of the radiosonde balloon is scheduled at night to avoid sun exposure.
"Observation measurements with radiosonde balloon sensors will be more detailed every 5 meters per second," he said.
University of Colorado researcher Abhiram Doddi said his team also studied the turbulent tropopause layer in the tropics. The researchers also used Vaisala weather balloons, and combined data with radar observations and other high-altitude flight instruments.
According to Doddi, Kototabang is a strategic location to understand the phenomena that occur near the equator. For 10-12 days, Doddi and his team will launch 10 weather balloons and 4 particle observations called CPS.
Researchers still face challenges, namely the different behavior of balloons in the tropics. There is also the risk of colder temperatures, as well as unpredictable weather. "We have to be prepared for the balloon to burst earlier than expected. However, we are very happy with the support of complete and cooperative facilities and staff," said Doddi.
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