Phys.org June 2, 2021 An international team of researchers (Japan, USA – NASA Goddard Space Flight Center, South Korea) assessed comprehensive air pollution (PM2.5) in the Arctic for the past 15 years to clarify the relationships between variations in PM2.5 and aerosols, wildfires, and the relevant climate patterns. They found 13 out of the 20 months with highest PM2.5 in the Arctic during the 15-year period were in summer. The elevated PM2.5 levels were highly correlated with relatively higher organic carbon aerosol concentrations, implying active wildfires. In those months, the wildfires likely occurred under extremely warm and dry conditions. Those […]
Tag Archives: Arctic climate
Lightning strikes will more than double in Arctic as climate warms
Science Daily April 5, 2021 An international team of researchers (USA – UC Irvine, UC Berkeley, Lawrence Berkeley National Laboratory, the Netherlands) projected how lightning in high-latitude boreal forests and Arctic tundra regions will change across North America and Eurasia as the climate continues warming and Arctic weather during summertime will be closer to those seen today far to the south, where lightning storms are more common. Looking at over-twenty-year-old NASA satellite data on lighting strikes in northern regions they constructed a relationship between the flash rate and climatic factors. They estimated a significant increase in lightning strikes as a result […]