Robert Bidigare NBP97-1 Methodology notesA comparison of the TURNER-determined chlorophyll a concentrations with the HPLC-determined TCHLA concentrations (monovinyl chlorophyll a + monovinyl chlorophyllide a; units = ng Chl a equivalents/L) was performed for Ross Process Cruise II (NBP9701). A good agreement between these two methods was observed (see below).
Results of geometric mean regression analysis (reduced major axis):
Y = HPLC TCHLA (monovinyl chlorophyll a + monovinyl chlorophyllide a), units = ng Chl a equivalents/L
X = TURNER chlorophyll a (it is necessary to convert the Turner Chl a concentrations in the AESOPS data base from mg/m3 to ng/L by multiplying concentrations by 1000)
HPLC TCHLA = TURNER*(1.0048) - 431.0537 (r = 0.9574, n = 123)