Indonesia province skies turn hellish red as haze filters out sunlight
It does not harm human vision.
The skies in Jambi, Indonesia turned red on Sunday, Sep. 22.
This was caused by the haze from widespread forest fires across the region, Sinar Harian reports.
Several clips of the strange phenomenon went viral on social media.
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Langit merah di Jambi, Indonesia ini penjelasannya Kejadian itu dikenali sebagai Hamburan Rayleigh disebabkan berlakunya pergerakan jerebu daripada titik panas yang ada di wilayah bahagian selatan Riau dan titik panas ini sudah muncul sejak pertengahan Ogos 2019. Dapatkan berita menarik di https://bit.ly/2msQytZ Untuk lebih banyak bahan menarik, jangan lupa klik di Bio link kami di linktr.ee/sinarharian #sinarharian #haze #jerebu #kesihatan #indonesia #merah #langitmerah #Jambi
Ini sore bukan malam. Ini bumi bukan planet mars. Ini jambi bukan di luar angkasa. Ini kami yang bernafas dengan paru-paru, bukannya dengan insang. Kami ini manusia butuh udara yang bersih, bukan penuh asap.
Lokasi : Kumpeh, Muaro Jambi #KabutAsap #KebakaranHutanMakinMenggila pic.twitter.com/ZwGMVhItwi
— Zuni Shofi Yatun Nisa (@zunishofiyn) September 21, 2019
The phenomenon, known as Rayleigh Scattering, was caused by the movement of haze particles away from the hotspots, the Indonesian National Board for Disaster Management information chief Agus Wibowo Soet explained.
Did not have any adverse effects on human vision
Indonesian astronomer Marufin Sudibyo explained that the red skies were not caused by a sudden increase in temperature.
According to Sudibyo, the effects of Rayleigh Scattering does not adversely affect human vision.
Sinar Harian also reported that similar scenes were observed in Indonesia after the Krakatau volcano eruption in 1883 and after Mount Pinatubo erupted in 1991.
Rayleigh Scattering is caused by the refraction of light that hits dust or other air particles in the atmosphere — particles that release wavelengths in the orange or red spectrum.
This creates a reddish vision when the density of particles in the air is high enough.
PSI in Pekanbaru, Indonesia surges to 700
The PSI reading in Pekanbaru, the capital city of Riau in Indonesia, surged to 700 on Sunday, Sep. 22, at about 10pm, according to The Straits Times.
It was recorded as an all-time low in air quality for the city, worse than the levels seen in Indonesia’s worst haze episode in 2015.
The PSI reading of Pekanbaru dropped to 489 in the morning of Sep. 23.
Riau is the second-closest Indonesian province to Singapore, after the Riau Islands province.
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