The relationships among CAW, heatwaves, wildfires, and pollution (IMAGE)

Hokkaido University

The relationships among CAW, heatwaves, wildfires, and pollution

Caption

The relationships among CAW, heatwaves, wildfires, and pollution. Anomalous anticyclones characterize the atmospheric circulation that develops concomitantly over the three remote regions around the summertime Arctic (July and August). The authors named it the circum-Arctic wave (CAW) pattern. These anticyclones induce warm and dry conditions from the surface to the mid-troposphere. The CAW can drive heatwaves and wildfires; wildfire smoke also emits aerosols that increase PM2.5 in and around the Arctic (Teppei J. Yasunari, et al. Environmental Research Letters. May 17, 2021).

Credit

Teppei J. Yasunari, et al. Environmental Research Letters. May 17, 2021.

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