This happened due to a phenomenon known as the Rayleigh scattering which occurs when the thicknesses of air particles match the wavelengths of light. The particles as result block out certain colours of light.
In this particular case, tiny particles measuring about 0.7 micrometres in diameter filled in the atmosphere. These particles blocked out nearly all the light from the sun, consequently only the red light from the current forest fires could reach the town. Several hot spots of thick smoke dispersal surrounding the Jambi region has been spotted by satellite imagery as reported the Indonesian meteorological agency BMKG.
Indonesia has experienced several hazes for the past years. However, this year’s haze has reportedly been described as the worst it encountered in years. Over 300,000 hectares of land had already been carbonised since the beginning of the year, according to Indonesia’s national disaster agency.
On the side of the government, they are leaving no stone unturned in their attempts to put out the fire. About 14,000 firefighters are currently engaged in this fight against the ravaging fire.