Figure 1

Composite mean May OLR (Wm−2) and Total Cloud Cover (mm/day) for Early, Late onset years and its difference (left and right side respectively). Dots indicate 95% confidence level based on a two tailed t-test. The maps in the figure are generated using NCL software [The NCAR Command Language (Version 6.6.2) [Software]. (2019). Boulder, Colorado: UCAR/NCAR/CISL/TDD. http://dx.doi.org/10.5065/D6WD3XH5].