Streaks of light flashed over the erupting crater in Bali

Streaks of light that flashed on the mouth in Bali in satellite images may be the result of gaps in the cloud.

The flashes called "hot spots" that look like they came from the volcano Agung are active in Bali, Indonesia and fall into the 3.9 micron infrared sensor lens on Japan's Himawari weather satellite, Long Room on November 29 reported.

The streak of light on the Japanese satellite Agung crater was captured.(Photo: Roy Spencer).

Roy Spencer, scientist who worked for the US Aerospace Agency (NASA) shared a series of photos on his personal website."Thinking that this is just a noise sensor, I checked other areas to find similar light trails but couldn't find it. After reviewing the nighttime shots of last week, I found a similar phenomenon during the period. the beginning of the eruptions , " said Dr Spencer.

David Rothery, professor of planetary geoscience at Open University, UK, says there are several explanations of light trails."We do not have to be surprised by the mysterious infrared changes in satellite images. The clarity of the hot spraying circuits and hot materials erupting on the ground depends on the gaps in the cloud. Some light streaks may be lightning is quite common in ash eruptions due to dust particles rising from the ground to the air, where the potential difference leads to discharges, " Professor Rothery said.

According to Darwin Volcanic Ash Advisory Center, ash from the Agung volcano is drifting southeast at 6,400 meters.

The sky is covered with gray ash erupted by the Bali volcano.(Video: Michael Flynn).

According to Professor Rothery, if the eruption event is as big as 1963, it will spill out. Lava flow contains a mixture of hot masses, pumice, ash and gas. They move at very high speeds along the volcanic slopes, down the valleys.

Most of the cascade streams consist of two parts: a line of substrates containing pieces of raw material flowing on the ground and an ash cloud rising above. can fall from this cloud and down the wind covering a large area. When the amount of ash becomes too large to maintain a height of the spray column, all or part of the ash column collapses, the hot ash will fall massively down the mountain and cover the land.

That is the main reason for the local authorities to set up a blockade area within 10km of Agung volcano.