*3.4. Phenological Metrics*

After analyzing every pixel in the Landsat images from our field site, we found that the growing season starts and ends between Day of Year (DOY) 280 and 316, that is between September and October each year (Figure 7A). The peak growing season occurs most frequently between May and July (i.e., DOY 137-165, Figure 7B). The start of season and peak growing season usually occurs before and after the wet season respectively, however establishing a relationship between the two events is beyond the scope of this study. See the Discussion section for more on the bimodal seasonality of mangrove ecosystems.

**Figure 7.** Violin plot of showing the Start of Season (**A**), and Peak of Growing Season (**B**) for mangroves in the Gladstone region (QLD) between 1995–1999, as determined by the apparent phenology. The height of each violin represents the range of values, and the width of each violin represents the number of values in that range.
