Improving accuracy measurement of optical properties



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Figure 5 – Comparison of determined by flow-through ac-9 and filter pad measurements. Data are shown for measurements made at 440 nm, for two different β-correction methods: (A) for the Roesler (1998) correction, and (B) for the Bricaud and Stramski (1990) empirical correction. Black lines denote 1:1 relationship.



Figure 6 – Time-series of particle absorption and attenuation measured during a transect crossing the Equator at 125° W. (A) Four hours of high resolution ac-s data from 27 August 2006 shows periodic FSW measurements which are interpolated and subtracted from TSW data. Red traces represent the one-minute binned data mean and plus or minus one standard deviation. (B) Computed data for whole transect. (C) Relative changes in particle size as indicated by γ exhibits diel pattern indicative of cell growth and division and a distinct front corresponding to SST data (D).



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