Fig. 3: Joint probability density function of CS, ET, and SM in summer.
From: Changes in land-atmosphere coupling increase compound drought and heatwaves over northern East Asia
Joint probability density function of (a) soil moisture-temperature coupling strength index (CS) and evapotranspiration (ET) (mm day−1), (b) CS and soil moisture (SM) (m3 m–3), and (c) ET and SM in summer (JJA) during (a) 1980–1998 over [105–130°E, 45–55°N]. d–f Same as (a–c) but for 1999–2019. The differences between two period (1999–2019 and 1980–1998) of joint probability density function of (g) CS and ET, (h) CS and SM, and (i) ET and SM.
