The use of in situ and airborne fluorescence measurements to determine UV absorption coefficients and DOC concentrations in surface waters

摘要: We compared the fluorescence (λ eX = 355 nm, λ em 450 nm) of chromophore-containing dissolved organic matter (CDOM) determined in laboratory to that with a shipboard fluorometer and an airborne laser fluorosensor off U.S. mid-Atlantic coast. Fluorescence was highly correlated CDOM absorption at excitation wavelength despite presence multiple sources changing contribution total C (DOC) pool, both surface waters down water column. The mean quantum yield (0.8±0.1%) fell within narrow range yields previously for east coast south Florida waters. These results show can be reliably from situ or over wide areas ocean it may possible estimate DOC concentration measurements.