Fig. 2: The contribution of the heat dome to 2021 heatwave over the Western North America.
From: Increased impact of heat domes on 2021-like heat extremes in North America under global warming
a The distribution of the maximum temperature anomalies (detrend, unit: °C) for flow analog days generated using eddy geopotential height anomalies at 500 hPa from 27 June–3 July and randomly picked days (control) during 1959–2020. The three lines of boxes denote the 25th percentile, median and 75th percentile from bottom to top, respectively. The red line indicates the maximum temperature anomalies averaged from 27 June–3 July 2021. b, c Spatial distribution of the eddy geopotential height anomalies at 500 hPa (unit: gpm) and maximum temperature anomalies (unit: °C) averaged from 27 June–3 July 2021. d, e is the same as b, c but for the randomly picked flow analog days during 1959–2020.
