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Full-Text Articles in Physical Sciences and Mathematics

A Statistical Fetch Model For Water Wave Glint Correction Using Worldview-3 Imagery, Amanda Jade Quintanilla May 2024

A Statistical Fetch Model For Water Wave Glint Correction Using Worldview-3 Imagery, Amanda Jade Quintanilla

Theses and Dissertations

Sun glint in satellite imagery of the water surface contaminates the upwelling signal received by a detector. Many models exist that attempt to correct for this wave facet effect and phenomena. In this work a model for sun glint correction is created using the comparison of image transects between two nearly simultaneously collected images of the same area, although with differing sensor geometry. One image utilized in this research is almost entirely glint free while the other is contaminated by water wave facet glint. Although many models for removing sun glint exist based on various techniques, none are completely accurate, …


Hyperspectral Simulation And Recovery Of Submerged Targets In Turbid Waters, Charles R. Bostater May 2005

Hyperspectral Simulation And Recovery Of Submerged Targets In Turbid Waters, Charles R. Bostater

Ocean Engineering and Marine Sciences Faculty Publications

Modeled hyperspectral reflectance signatures just above the water surface are obtained from radiative transfer models to create synthetic images of targets below the water surface. Images are displayed as 24 bit RGB images of the water surface using selected channels. Example model outputs are presented in this paper for a hyperspectral Monte Carlo and a hyperspectral layered analytical iterative model of radiative transport within turbid shallow water types. Images at the selected wavelengths or channels centered at 490, 530 and 680 nm suggests the two models provide quite similar results when displayed as RGB images. The techniques are demonstrated to …


Data Assimilation Of Avhrr And Modis Data For Land Base Initialization And Boundary Conditions In The Utc-M Atmospheric Boundary Layer Sea-Breeze Model Of Space Coast Florida, Charles R. Bostater Jr., Jerome A. King, Lisa H. Huddleston, Luce Bassetti Feb 2004

Data Assimilation Of Avhrr And Modis Data For Land Base Initialization And Boundary Conditions In The Utc-M Atmospheric Boundary Layer Sea-Breeze Model Of Space Coast Florida, Charles R. Bostater Jr., Jerome A. King, Lisa H. Huddleston, Luce Bassetti

Ocean Engineering and Marine Sciences Faculty Publications

The purpose of this paper is to present results of simulations of the Florida Tech UTC-M sea-breeze model22 with the addition of a simplified atmospheric downwelling radiation subroutine1,4 combined and a thermal inertia subroutine17,19,20 into the atmospheric planetary boundary layer model, in order to calculate time dependant heat flux boundary conditions at the air-land boundary that are derived from satellite data from AVHRR and MODIS sensors. The improved UTC-M planetary boundary layer model with this thermal sub-model subroutine is used to demonstrate the use of thermal inertia to help estimate heat fluxes at the land-air interface which in turn influences …


Synthetic Image Generation Of Shallow Water Using An Iterative Layered Radiative Transfer Model With Realistic Water Surface Waves, Charles R. Bostater Jr., Lisa Huddleston, Luce Bassetti Feb 2004

Synthetic Image Generation Of Shallow Water Using An Iterative Layered Radiative Transfer Model With Realistic Water Surface Waves, Charles R. Bostater Jr., Lisa Huddleston, Luce Bassetti

Ocean Engineering and Marine Sciences Faculty Publications

Modeled hyperspectral reflectance signatures just above the water surface are obtained from an analytical-based, iterative radiative transport model applicable to shallow water types. Light transport within the water body is simulated using a fast, accurate radiative transfer model that calculates the light distribution in any layered media. A realistic water surface is synthesized using empirically-based spectral models of the ocean surface to generate water surface waves. Images are displayed as 24 bit RGB images of the water surface using selected channels from a synthetic hyperspectral image cube. The selected channels are centered at 490, 530 and 676 nm. Hyperspectral image …


Wavelength-Specific Fluorescence Coefficients For Simulating Hyperspectral Reflectance Signatures Of Water, Charles R. Bostater, Jan Rebman Dec 1999

Wavelength-Specific Fluorescence Coefficients For Simulating Hyperspectral Reflectance Signatures Of Water, Charles R. Bostater, Jan Rebman

Ocean Engineering and Marine Sciences Faculty Publications

A model1'2 which describes the transfer of irradiant light in water is used to predict the fluorescence response ofthe water surface reflectance under solar induced or an artificial light source such as a laser. Formulations for the estimation of wavelength dependent fluorescent coefficients. The techniques allows the description ofa fluorescence reflectance response in deep and shallow waters with various bottom reflectance signatures such as submerged vegetation, corals and sand. Recent advances in the model are presented for obtaining wavelength dependent fluorescence spectrum responses from the solutions of the two flow equations following the procedures developed by Bostater1'2'3. Synthetic or modeled …