Biogeo-Optics: Backscattering Cross Sections for Suspended Mineral and Organic Matter in the Coastal and Near-Coastal Ocean
NAVAL RESEARCH LAB STENNIS SPACE CENTER MS OCEANOGRAPHY DIV
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Suspended mineral matter Continues to be the major block to adequate parameterization of optical Case 2 waters, especially Nearshore waters. This mineral matter has an overriding effect on the optics of coastal waters as will be demonstrated in this report. There is a paucity of optical information for the suspended mineral matter of coastal waters which we will be attempting to rectify here. With the information we are suppling proposing to fill this gap we are creating a new field, geo-optics. This lays the basic for adequate coastal optical models will even be of importance for Case 1 waters - the open ocean receives mineral matter from dust storms which supply a significant admixture of iron for plankton blooms. The majority of activity in the study of ocean optical properties has been the creation of chlorophyll-based models, the quantification of absorption cross sections, the partitioning of the absorption coefficient into its various organic components. Our contribution to geo-optics in this report is an investigation of the role of suspended mineral matter in the particulate backscattering coefficient, the forcing function of the remote-sensing signal. From this study it will be possible to partition the scattering and backscattering coefficients into their major components mineral organic. We are determining the optical matter in Mobile Bay, Alabama, the northern Gulf of Mexico off the barrier islands of Mobile Bay, in the northern Gulf of Mexico off the barrier island Horn Island in the Mississippi Sound, at the Southwest Pass of the mouth of the Mississippi River.
- Physical and Dynamic Oceanography