Index Catalog // ScholarsArchive@OSU

In Situ Determination of the Remotely Sensed Reflectance and the Absorption Coefficient: Closure and Inversion [Errata included]

Creator:: Barnard, Andrew H., Zaneveld, J. Ronald V., and Pegau, W. Scott
Abstract:: We tested closure between in situ radiometric and absorption coefficient measurements by using a nearly backscattering-independent remote-sensing reflectance model that employs the remote-sensing reflectance at three wavelengths. We show that only a small error is introduced into the closure model when the proper functional relationships of f/Q and the backscattering...
Resource Type:: Article

The influence of coherent waves on the remotely sensed reflectance

Creator:: Zaneveld, J. Ronald V., Boss, Emmanuel, and Hwang, Paul A.
Abstract:: Oceanic waves have been found to contribute enhanced back-scattering in the direction of the illumination source in studies that assumed the ocean surface to be a random sum of waves. Here we investigate enhanced back-scattering by coherent capillary-gravity wave trains that co-exist near the crests of short gravity waves in...
Resource Type:: Article
Full Text:: reflectance The influence of coherent waves on the remotely sensed reflectance J. Ronald V. Zaneveld and

Error in predicting hydrosol backscattering from remotely sensed reflectance

Creator:: Weidemann, A. D., Stavn, R. H., Zaneveld, J. Ronald, and Wilcox, M. R.
Abstract:: Monte Carlo simulations are carried out to determine the error in the inversion of backscattering from remotely sensed reflectance when geometrical shape factors of the light field are assumed to be unity. The results show that error in backscattering inversion can vary from a 40% overestimation to a 20% underestimation...
Resource Type:: Article
Full Text:: carried out to determine the error in the inversion of backscattering from remotely sensed reflectance

Remotely sensed reflectance and its dependence on vertical structure: a theoretical derivation

Creator:: Zaneveld, J. Ronald V.
Abstract:: An exact expression for the remotely sensed reflectance (RSR, upwelling radiance divided by downwelling scalar irradiance) just beneath the surface of the ocean is derived from the equation of radiative transfer. It is shown that the RSR at a given depth in the ocean depends only on the inherent optical...
Resource Type:: Article
Full Text:: The most important parameter in the determination of oceanic properties from remotely sensed radiance

Theoretical derivation of the depth average of remotely sensed optical parameters

Creator:: Zaneveld, J. Ronald V., Barnard, Andrew H., and Boss, Emmanuel
Abstract:: The dependence of the reflectance at the surface on the vertical structure of optical parameters is derived from first principles. It is shown that the depth dependence is a function of the derivative of the round trip attenuation of the downwelling and backscattered light. Previously the depth dependence was usually...
Resource Type:: Article
Full Text:: , "In situ determination of the remotely sensed reflectance and the absorption coefficient: closure and

A theoretical derivation of the dependence of the remotely sensed reflectance of the ocean on the inherent optical properties

Creator:: Zaneveld, J. Ronald
Abstract:: An expression for the ratio of the upwelling nadir radiance L(π, z) and the downwelling scalar irradiance Eod(Z) is derived from the following equation of radiative transfer. This expression is given by RSR(z)=[L(π, z)]/Eod(Z) = [fb(z)bb(z)]/2π[k(π, z) + c(z) – fL(z)bf(z)], where bb(z) is the backscattering coefficient, k(π, z) is...
Resource Type:: Article
Full Text:: and the downwelling irradiance, sr -• . RSR remotely sensed reflectance; the ratio of the nadir

An asymptotic closure theory for irradiance in the sea and its inversion to obtain the inherent optical properties

Creator:: Zaneveld, J. Ronald
Abstract:: An expression is derived for the rate at which the diffuse attenuation coefficient for vector irradiance approaches its asymptotic value in a homogeneous medium. The asymptotic approach rate is shown to be a function of boundary conditions at the surface and the asymptotic diffuse attenuation coefficient which is an inherent...
Resource Type:: Article
Full Text:: average cosine of the light field, and the remotely sensed reflectance at the surface, based only on the

The inherent optical properties of the oceans: from closure to prediction

Creator:: Barnard, Andrew Heath
Abstract:: Precise in situ measurement of the spectral absorption and scattering coefficients in several regions has revealed patterns in the distribution of the inherent optical properties on spatial scales that were previously unobtainable. The precision of the measurements was found to be consistent and unbiased across a variety of oceanic regimes...
Resource Type:: Dissertation
Full Text:: . iN SITU DETERMINATION OF THE REMOTELY SENSED REFLECTANCE AND THE ABSORPTION COEFFICIENT: CLOSURE AND

Effects of bulk particle characteristics on backscattering and optical closure

Creator:: Chang, Grace and Whitmire, Amanda L.
Abstract:: Optical closure is essential for the determination of biogeochemical properties from ocean color remote sensing information. Mie scattering theory, a radiative transfer model, and a semi-analytical inversion algorithm were used to investigate the influence of particles and their properties on optical closure. Closure results were generally poor. Absorption coefficient (at)...
Resource Type:: Article
Full Text:: derivation of the dependence of the remotely sensed reflectance of the ocean on the inherent optical

The effects of physical parameters on the absorption coefficient of natural waters

Creator:: Pegau, W. Scott
Resource Type:: Dissertation
Full Text:: devoted to the determination of the effect of temperature and salinity on the absorption coefficient in

ScholarsArchive@OSU

In Situ Determination of the Remotely Sensed Reflectance and the Absorption Coefficient: Closure and Inversion [Errata included]

The influence of coherent waves on the remotely sensed reflectance

Error in predicting hydrosol backscattering from remotely sensed reflectance

Remotely sensed reflectance and its dependence on vertical structure: a theoretical derivation

Theoretical derivation of the depth average of remotely sensed optical parameters

A theoretical derivation of the dependence of the remotely sensed reflectance of the ocean on the inherent optical properties

An asymptotic closure theory for irradiance in the sea and its inversion to obtain the inherent optical properties

The inherent optical properties of the oceans: from closure to prediction

Effects of bulk particle characteristics on backscattering and optical closure

The effects of physical parameters on the absorption coefficient of natural waters

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