Fig. 4: Global soil moisture influence on diurnal ABL evolution.
From: Soil moisture signature in global weather balloon soundings
a Surface soil moisture for available sounding days. When soil moisture is below critical soil moisture (dot-dashed vertical line in Fig. 3c and here), we distinguish water-limited conditions (red), and energy-limited conditions otherwise (blue). Evaporative fraction (b) and potential temperature lapse rate (c) from CLASS4GL averaged between 08:00 and 14:00 local solar time. Potential temperature (d, g), ABL height (e, h), and the vapor pressure deficit (f, i) from CLASS4GL at 08:00 and 14:00. Vertical blue and red lines denote the medians from the respective distributions. Annotations show the difference between the medians and the p values of the Kolmogorov–Smirnov test. Dark grey arrows indicate assumed causal relations between variables.
