Figure 3
From: Increasing flash droughts over China during the recent global warming hiatus
Mann-Kendall trends of flash drought event and its component variables of temperature (T), soil moisture (SM) and ET averaged over China and the sub-regions for the periods of 1979–2010 (a), 1979–1997 (b), and 1998–2010 (c), respectively (see Methods for the trend analysis). The sub-regions are defined as boxes in Fig. 1. Except for the flash drought events (a) that are averaged from three reanalysis products directly, the regional mean component variables (b–d) are standardized for each reanalysis product before being averaged to facilitate the comparison. The trends are calculated based on the ensemble mean variables from three reanalysis products. ***, **, and *, are the significances of the trends at the 99%, 95%, 90% confidence intervals respectively.
