“…Chavez et al (1999), Kahru and Mitchell (2001), Leonard et al (2001), and Tang et al (2003) showed very good agreement in the eastern Equatorial Pacific, the gyre portion of the North Central Pacific, the California Current, and the South China Sea, respectively. However, Bukin et al (2001) showed substantial overestimates by SeaWiFS in the western portion of the entire Pacific basin at low chlorophyll concentrations ( < 0.1 mg m À 3 ), while Takashima et al (2003) observed overestimates in the South Pacific at high concentrations. Our comparisons for the Pacific basins show overestimation by SeaWiFS in the high chlorophyll range as well (Fig.…”