Index Catalog // ScholarsArchive@OSU

Optical scattering and backscattering by organic and inorganic particulates in U.S. coastal waters

Creator:: Snyder, William A., Arnone, Robert A., Davis, Curtiss O., Goode, Wesley, Gould, Richard W., Ladner, Sherwin, Lamela, Gia, Rhea, William J., Stavn, Robert, Sydor, Michael, and Weidemann, Allen
Abstract:: We present the results of a study of optical scattering and backscattering of particulates for three coastal sites that represent a wide range of optical properties that are found in U.S. near-shore waters. The 6000 scattering and backscattering spectra collected for this study can be well approximated by a power-law...
Resource Type:: Article
Full Text:: material that is present. © 2008 Optical Society of America OCIS codes: 010.1350, 010.4450, 010.4458. 1

Observation of sound focusing and defocusing due to propagating nonlinear internal waves

Creator:: Luo, J., Badiey, M., Karjadi, E. A., Katsnelson, B., Tskhoidze, A., Lynch, J. F., and Moum, J. N.
Abstract:: Fluctuations of the low frequency sound field in the presence of an internal solitary wave packet during the Shallow Water ’06 experiment are analyzed. Acoustic, environmental, and on-board ship radar image data were collected simultaneously before, during, and after a strong internal solitary wave packet passed through the acoustic track....
Resource Type:: Article
Full Text:: . 2, September 2008 © 2008 Acoustical Society of America 28.193.70.43. Redistribution subject to ASA

Mid-frequency sound propagation through internal waves at short range with synoptic oceanographic observations

Creator:: Rouseff, Daniel, Tang, Dajun, Williams, Kevin L., Wang, Zhongkang, and Moum, James N.
Abstract:: Preliminary results are presented from an analysis of mid-frequency acoustic transmission data collected at range 550m during the Shallow Water 2006 Experiment. The acoustic data were collected on a vertical array immediately before, during, and after the passage of a nonlinear internal wave on 18 August, 2006. Using oceanographic data...
Resource Type:: Article
Full Text:: passes above the acoustic source. © 2008 Acoustical Society of America PACS numbers: 43.30.Ft, 43.30.Re

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:: . © 2009 Optical Society of America OCIS codes: (010.4450) Ocean optics; (120.0280) Remote sensing

Atmospheric Correction Algorithm for Hyperspectral Remote Sensing of Ocean Color from Space

Creator:: Gao, Bo-Cai, Montes, Marcos J., Ahmad, Ziauddin, and Davis, Curtiss O.
Abstract:: Existing atmospheric correction algorithms for multichannel remote sensing of ocean color from space were designed for retrieving water-leaving radiances in the visible over clear deep ocean areas and cannot easily be modified for retrievals over turbid coastal waters. We have developed an atmospheric correction algorithm for hyperspectral remote sensing of...
Resource Type:: Article
Full Text:: data acquired with an airborne imaging spectrometer. © 2000 Optical Society of America OCIS codes

Using lasers to probe the transient light absorption by proteorhodopsin in marine bacterioplankton

Creator:: Desiderio, Russell A., Laney, Samuel R., Letelier, Ricardo M., and Giovannoni, Stephen J.
Abstract:: We constructed an experimental apparatus that used lasers to provide the probe beams for measuring the transient absorption kinetics of bacterioplankton that contain proteorhodopsin, a microbial protein that binds retinal and is analogous to animal rhodopsin. With this approach we were able to observe photocycles characteristic of functioning retinylidene ion...
Resource Type:: Article
Full Text:: concentrated from seawater. © 2007 Optical Society of America OCIS codes: 300.6500, 120.6200. 1. Introduction

Autonomous observations of in vivo fluorescence and particle backscattering in an oceanic oxygen minimum zone

Creator:: Whitmire, Amanda L., Letelier, Ricardo M., Villagran, Victor, and Ulloa, Osvaldo
Abstract:: The eastern South Pacific (ESP) oxygen minimum zone (OMZ) is a permanent hydrographic feature located directly off the coasts of northern Chile and Peru. The ESP OMZ reaches from coastal waters out to thousands of kilometers offshore, and can extend from the near surface to depths greater than 700 m....
Resource Type:: Article

Spectral variability of the particulate backscattering ratio

Creator:: Whitmire, Amanda L., Boss, Emmanuel, Cowles, Timothy J., and Pegau, W. Scott
Abstract:: The spectral dependency of the particulate backscattering ratio is relevant in the fields of ocean color inversion, light field modeling, and inferring particle properties from optical measurements. Aside from theoretical predictions for spherical, homogeneous particles, we have very limited knowledge of the actual in situ spectral variability of the particulate...
Resource Type:: Article
Full Text:: backscattering ratio was 0.010. © 2007 Optical Society of America OCIS codes: (010.4450) Ocean optics; (290

Brood Pheromone Effects on Colony Protein Supplement Consumption and Growth in the Honey Bee (Hymenoptera: Apidae) in a Subtropical Winter Climate

Creator:: Pankiw, Tanya, Sagili, Ramesh R., and Metz, Bradley N.
Abstract:: Fatty acid esters extractable from the surface of honey bee, Apis mellifera L. (Hymenoptera: Apidae), larvae, called brood pheromone, significantly increase rate of colony growth in the spring and summer when flowering plant pollen is available in the foraging environment. Increased colony growth rate occurs as a consequence of increased...
Resource Type:: Article
Full Text:: : tpankiw@tamu.edu. 0022-0493/08/1749Ð1755$04.00/0 � 2008 Entomological Society of America is

Validation of Terra-MODIS phytoplankton chlorophyll fluorescence line height

Creator:: Hoge, Frank E., Lyon, Paul E., Swift, Robert N., Yungel, James K., Abbott, Mark R., Letelier, Ricardo M., and Esaias, Wayne E.
Abstract:: The Moderate Resolution Imaging Spectroradiometer (MODIS) aboard the Terra spacecraft contains spectral bands that allow retrieval of solar-induced phytoplankton chlorophyll fluorescence emission radiance. Concurrent airborne laser-induced (and water-Raman normalized) phytoplankton chlorophyll fluorescence data is used to successfully validate the MODIS chlorophyll fluorescence line height (FLH) retrievals within Gulf Stream, continental...
Resource Type:: Article
Full Text:: provinces of the global oceans. © 2003 Optical Society of America OCIS codes: 010.4450, 120.0280, 280.3640

ScholarsArchive@OSU

Optical scattering and backscattering by organic and inorganic particulates in U.S. coastal waters

Observation of sound focusing and defocusing due to propagating nonlinear internal waves

Mid-frequency sound propagation through internal waves at short range with synoptic oceanographic observations

Effects of bulk particle characteristics on backscattering and optical closure

Atmospheric Correction Algorithm for Hyperspectral Remote Sensing of Ocean Color from Space

Using lasers to probe the transient light absorption by proteorhodopsin in marine bacterioplankton

Autonomous observations of in vivo fluorescence and particle backscattering in an oceanic oxygen minimum zone

Spectral variability of the particulate backscattering ratio

Brood Pheromone Effects on Colony Protein Supplement Consumption and Growth in the Honey Bee (Hymenoptera: Apidae) in a Subtropical Winter Climate

Validation of Terra-MODIS phytoplankton chlorophyll fluorescence line height

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