Figure 3

Heatmap of the differences (absolute and relative) between OMPS-LP-derived estimates and balloon-borne measurements; blank spaces indicates periods within which no sondes fulfilling the comparison criteria were available. Periods and altitudes at which the temperature favors the formation of polar stratospheric clouds (PSC) are shown below the heatmaps; temperature profiles from sondes were used. Dashed vertical lines separate different periods per year (DJFM and SON). (a–c) Neumayer; (d–f) Syowa; (g–i) Amundsen-Scott; and (j–l) Marambio. Plots were generated by using Python’s Matplotlib Library⁶³.