Fig. 2: Changes in snow cover phenology and BA across the Arctic from 1982 to 2018.
From: Delayed formation of Arctic snow cover in response to wildland fires in a warming climate
a, Trend in annual BA (Mha) based on FireCCILT11. b, Trend in annual snow cover duration (days) over areas affected by wildland fire. c, Trends in the start (black) and end (red) dates of snow cover over fire-affected areas. In a–c, trends are estimated using least-squares linear regression over the 1982–2018 period and statistical significance is assessed using two-sided t-tests with P values derived from the regression model. d, Spatial sensitivity of SD to changes in snow cover duration over the 1982–2018 period. e, Spatial sensitivity of ED to changes in snow cover duration over the 1982–2018 period. Panels d and e show only regions with statistically significant results based on multiple linear regression. Basemaps in d and e from Natural Earth (https://www.naturalearthdata.com/), generated with matplotlib with geospatial data from GSHHG (https://www.soest.hawaii.edu/pwessel/gshhg/) under a Creative Commons licence CC0.
