The research on the system recorded by the US-owned Noaa-20 satellite south of Ecuador in December 2018 was published by the University of Wisconsin-Madison three years later.
According to the published report, the temperature value was measured as minus 111 degrees at the top of this tropical storm that occurred in the west of the Pacific Ocean. Experts pointed out that the value in question could be a record level.
Experts stated that the air flow was very strong, and that it reached the lowest layer of the atmosphere (troposphere), it generally flattened and took an anvil-like shape.
According to the news in the BBC, Simon Proud from Oxford University states that this situation is called the “overshooting ball” and that the cloud’s peak cools 7 degrees every kilometer during this rise after overcoming the Tropopause layer.
Proud stated that in the example three years ago, the cloud that exceeded the Tropopause was 13 – 14 degrees colder. Meteorologists consider some additional factors contributing to this unusual situation.