Use of Chlorophyll Fluorescence Measurements from Space for Separating Constituents of Sea Water. Volume 1: Summary

摘要

Sunlight stimulated fluorescence of marine phytoplankton and the transport of this signal to the top of the atmosphere as a method to map the distribution of phytoplankton in coastal areas of the sea from space were examined. Sun stimulated chlorophyll-a fluorescence at 685 nm is a generally detectable though small spectral feature in upward radiation spectra over the sea containing chlorophyll-a concentrations down to at least 1 mg/cum. Under typical coastal conditions very simple extraction algorithms give a linear dependence of chlorophyll fluorescence on chlorophyll concentration with a relatively low standard deviation. The primary productivity of marine algae is inversely related to in situ chlorophyll-a fluorescence. Suspended matter and Gelbstoff may induce problems.