Fig. 10
Upper ocean (25 m) monthly climatology for key variables. Monthly observations and number of quality controlled (qc’d) profiles are plotted for (a,b) temperature (red), (c,d) Chl a (green), (e,f) bbp (650 nm) (blue), and (g,h) oxygen (magenta). Hawaii Ocean Time-series monthly climatology (1988–2021; black boxplots) include 5 m and 25 m bottle collections for HPLC Chl a, particulate carbon (PC) and Winkler oxygen, and upper 5–25 m for CTD temperature data. On each boxplot, the central mark indicates the median, and the bottom and top edges of the box indicate the 25th and 75th percentiles, respectively. The whiskers extend to the most extreme data points not considering outliers (marker points above and below center line position). Values more than 1.5 the interquartile range away from the top or bottom of the box are considered outliers. Number of max profiles is including datasets with observations in the upper 25 m only and may be lower than totals in Table 1.
