Accurate measurements of upwelling radiance from marine waters are needed to calibrate air- or satellite-borne sensors used to measure ocean optical properties. Submersible monochromator or filter instruments built for this purpose have several drawbacks: loss of accuracy due to mechanical wear, slow data acquisition rates, and inability to monitor several sources simultaneously. An instrument will be developed that incorporates a spectrometer with a two-dimensional, CCD array detector and permits simultaneous measurement of several sources that use optical fibers. Chlorophyll concentrations will be estimated from laser-excited chlorophyll fluorescence. The entire system, including data processing and telemetry, will be housed in an enclosure deployable from ship or buoy.This instrument would be applicable to process monitoring: on-line measurement of color, moisture, and polymer composition (visible and near-infrared); alloy composition and plasma process monitoring by element analysis; and medical diagnostics, including use of fiber-optic sensors.ocean, marine, spectrometer, spectroradiometer, fluorometer, optical properties, colorSTATUS: Phase I Only
