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Full-Text Articles in Physical Sciences and Mathematics
Information Content Of Absorption Spectra And Implications For Ocean Color Inversion, B. B. Cael, Alison Chase, Emmanuel Boss
Information Content Of Absorption Spectra And Implications For Ocean Color Inversion, B. B. Cael, Alison Chase, Emmanuel Boss
Marine Sciences Faculty Scholarship
The increasing use of hyperspectral optical data in oceanography, both in situ and via remote sensing, holds the potential to significantly advance characterization of marine ecology and biogeochemistry because, in principle, hyperspectral data can provide much more detailed inferences of ecosystem properties via inversion. Effective inferences, however, require careful consideration of the close similarity of different signals of interest, and how these interplay with measurement error and uncertainty to reduce the degrees of freedom (DoF) of hyperspectral measurements. Here we discuss complementary approaches to quantify the DoF in hyperspectral measurements in the case of in situ particulate absorption measurements, though …
Advantages And Limitations To The Use Of Optical Measurements To Study Sediment Properties, Emmanuel Boss, Christopher R. Sherwood, Paul Hill, Tim Milligan
Advantages And Limitations To The Use Of Optical Measurements To Study Sediment Properties, Emmanuel Boss, Christopher R. Sherwood, Paul Hill, Tim Milligan
Marine Sciences Faculty Scholarship
Measurements of optical properties have been used for decades to study particle distributions in the ocean. They are useful for estimating suspended mass concentration as well as particle-related properties such as size, composition, packing (particle porosity or density), and settling velocity. Measurements of optical properties are, however, biased, as certain particles, because of their size, composition, shape, or packing, contribute to a specific property more than others. Here, we study this issue both theoretically and practically, and we examine different optical properties collected simultaneously in a bottom boundary layer to highlight the utility of such measurements. We show that the …
Estimating The Maritime Component Of Aerosol Optical Depth And Its Dependency On Surface Wind Speed Using Satellite Data, Y. Lehahn, I. Koren, E. Boss, Y. Ben-Ami, O. Altaratz
Estimating The Maritime Component Of Aerosol Optical Depth And Its Dependency On Surface Wind Speed Using Satellite Data, Y. Lehahn, I. Koren, E. Boss, Y. Ben-Ami, O. Altaratz
Marine Sciences Faculty Scholarship
Six years (2003-2008) of satellite measurements of aerosol parameters from the Moderate Resolution Imaging Spectroradiometer (MODIS) and surface wind speeds from Quick Scatterometer (QuikSCAT), the Advanced Microwave Scanning Radiometer (AMSR-E), and the Special Sensor Microwave Imager (SSM/I), are used to provide a comprehensive perspective on the link between surface wind speed and marine aerosol optical depth over tropical and subtropical oceanic regions. A systematic comparison between the satellite derived fields in these regions allows to: (i) separate the relative contribution of wind-induced marine aerosol to the aerosol optical depth; (ii) extract an empirical linear equation linking coarse marine aerosol optical …