SEASONALITY OF CHLOROPHYLL CONCENTRATIONS IN THE CALIFORNIA CURRENT: A COMPARISON OF TWO METHODS

摘要: We have compared estimates of seasonal variations in chlorophyll concentrations the California Current as derived from a large series situ, water-column, measures and Coastal Zone Color Scanner-West Coast Time Series (WCTS) both original corrected forms. find substantial differences between two methods, satellite situ. The WCTS showed winter to be peak season for pigment concentration everywhere, but situ data did not. A previous study found “a strong cycle with spring summer maximum,” contained no convincing evidence “strong” when all ofthe were examined. Some individual years (e.g., 1984) do clear maxima, particularly very near shore, most There are extensive interannual variations. overall relation surface (or 020 m) integrated, water-column (0-150 is uncertain terms mean per unit volume, spatial heterogeneity, temporal change.