Wildfires associated with slash and burn agriculture on peatlands have a massive impact on climate change and regional transboundary air pollution. This August, my research group conducted the world's first field-scale peatland fire experiments. The experimental field campaign aimed to understand the behaviour of peat fires. One of the most important objectives is to understand the gas emission, which can cause deadly haze crisis. In this photo, after surface soil burning to black, there is still smouldering underground, giving haze emission continuously. This kind of emission is different to the smoke emission from flaming fires, which can go up to atmosphere. The gas emission from peat fire has low buoyancy, which makes it spread close to land and transport to cities. The state of the gas transportation in this photo shows the instability of the gas flow.
Haze flow —

Wildfires associated with slash and burn agriculture on peatlands have a massive impact on climate change and regional transboundary air pollution. This August, my research group conducted the world's first field-scale peatland fire experiments. The experimental field campaign aimed to understand the behaviour of peat fires. One of the most important objectives is to understand the gas emission, which can cause deadly haze crisis. In this photo, after surface soil burning to black, there is still smouldering underground, giving haze emission continuously. This kind of emission is different to the smoke emission from flaming fires, which can go up to atmosphere. The gas emission from peat fire has low buoyancy, which makes it spread close to land and transport to cities. The state of the gas transportation in this photo shows the instability of the gas flow.

https://fluids.ac.uk/files/05_Wuquan_Cui_Instability_1024w.1543871137.jpg