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22 results on '"Bissett, Paul"'

3. Optical influence of ship wakes

Author

Zhang, Xiaodong, Lewis, Marlon, Bissett, Paul W., Johnson, Bruce, and Kohler, Dave

Subjects
Optics -- Research, Astronomy, Physics
Abstract

The optical variations observed within ship wakes are largely due to the generation of copious amounts of air bubbles in the upper ocean, a fraction of which accumulate as foam at the surface, where they release scavenged surfactants. Field experiments were conducted to test previous theoretical predictions of the variations in optical properties that result from bubble injection in the surface ocean. Variations in remote-sensing reflectance and size distribution of bubbles within the ship-wake zone were determined in three different optical water types: the clear equatorial Pacific Ocean, moderately turbid coastal waters, and very turbid coastal waters, the latter two of which were offshore of New Jersey. Bubbles introduced by moving vessels increased the backscattering in all cases, which in turn enhanced the reflectance over the entire visible and infrared wave bands. The elevated reflectance had different spectral characteristics in the three locations. The color of ship wakes appears greener in the open ocean, whereas little change in color was observed in near-coastal turbid waters, consistent with predictions. Colorless themselves, bubbles increase the reflected radiance and change the color of the ocean in a way that depends on the spectral backscattering and absorption of the undisturbed background waters. For remote observation from aircraft or satellite, the foam and added surfactants further enhance the reflectance to a degree dependent on the illumination and the viewing geometry. [c] 2004 OCIS codes: 010.4450, 290.1350, 280.0280.

Published
2004

4. Science and measurement requirements for a plant physiology and functional types mission : measuring the composition, function and health of global land and coastal ocean ecosystems.

Author

Green, Robert O, Rogez, Francois, Green, Rob, Ungar, Steve, Knox, Robert, Asner, Greg, Muller-Karger, Frank, Bissett, Paul, Chekalyuk, Alex, Dierssen, Heidi, Gamon, John, Hook, Simon, Meister, Gerhard, Middleton, Betsy, Ollinger, Scott, Roberts, Dar, Siegel, Dave, Townsend, Phil, Saatchi, Sassan, Unstin, Susan, Turner, Woody, Wickland, Diane, Bontempi, Paula, and Emanuel, Bill

Published
2007

7. Intercomparison of shallow water bathymetry, hydro-optics, and benthos mapping techniques in Australian and Caribbean coastal environments

Author

Dekker, Arnold G., primary, Phinn, Stuart R., additional, Anstee, Janet, additional, Bissett, Paul, additional, Brando, Vittorio E., additional, Casey, Brandon, additional, Fearns, Peter, additional, Hedley, John, additional, Klonowski, Wojciech, additional, Lee, Zhong P., additional, Lynch, Merv, additional, Lyons, Mitchell, additional, Mobley, Curtis, additional, and Roelfsema, Chris, additional

Published
2011
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12. Bottom Characterization from Hyperspectral Image Data

Author

Philpot, William, primary, Davis, Curtiss, additional, Bissett, Paul, additional, Mobley, Curtis, additional, Kohler, David, additional, Lee, Zhongping, additional, Bowles, Jeffrey, additional, Steward, Robert, additional, Agrawal, Yogesh, additional, Trowbridge, John, additional, Gould, Richard, additional, and Arnone, Robert, additional

Published
2004
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20. The Long-Term Ecosystem Observatory: An Integrated Coastal Observatory.

Author

Schofield, Oscar, Bergmann, Trisha, Bissett, Paul, Grassle, J. Frederick, Haidvogel, Dale B., Kohut, Josh, Moline, Mark, and Glenn, Scott M.

Subjects
OCEANOGRAPHIC research stations, ECOLOGICAL research, BIOTIC communities, REMOTE sensing, OCEANOGRAPHIC research
Abstract

Describes the capabilities of the Long-Term Ecosystem Observatory (LEO) in New Jersey. Background on LEO; Components of LEO; Use of remote sensing in the observatory; Case examples using the LEO assets.

Published
2002
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21. High Temperature, High Speed Solid Lubricated Bearing Technology, Phase II - Test and Analysis.

Author

AIRESEARCH MFG CO OF ARIZONA PHOENIX, Bissett,Paul R., Downey,Richard L., Solomon,Robert A., AIRESEARCH MFG CO OF ARIZONA PHOENIX, Bissett,Paul R., Downey,Richard L., and Solomon,Robert A.

Abstract

This report describes a thorough analysis of the heat transfer characteristics of solid lubricated bearings. Two major aspects are investigated. These are heat generation within the bearing, and bearing cooling techniques. Bearing heat generation was studied, both analytically and experimentally. Computerized heat generation predictions were made and compared to actual performance data. Bearing component experiments were conducted in order to determine material and geometric effects and the significance of the various heat transfer modes. In addition, the importance of bearing operating conditions upon heat generation was also determined. A number of bearing cooling techniques were investigated. The influence of bearing geometric changes and cooling medium supply methods were determined. Much of the data is presented in nondimensional form. In general, it was found that heat generation was more a function of bearing operating conditions, especially speed and thrust load, than bearing internal geometry. Direct jet impingement cooling appears to be the most effective bearing cooling technique. (Author), See also report dated Aug 74, AD-A003 635.

Published
1975

22. High Temperature, High Speed Solid Lubricated Bearing Technology. Phase I: Heat Transfer.

Author

AIRESEARCH MFG CO OF ARIZONA PHOENIX, Bissett,Paul R., Downey,Richard L., Solomon,Robert A., AIRESEARCH MFG CO OF ARIZONA PHOENIX, Bissett,Paul R., Downey,Richard L., and Solomon,Robert A.

Abstract

The report describes a thorough analysis of the heat transfer characteristics of solid lubricated bearings. Two major aspects are investigated. These are heat generation within the bearing, and bearing cooling techniques. Bearing heat generation was studied, both analytically and experimentally. Computerized heat generation predictions were made and compared to actual performance data. Bearing component experiments were conducted in order to determine material and geometric effects and the significance of the various heat transfer modes. In addition, the importance of bearing operating conditions upon heat generation was also determined. A number of bearing cooling techniques was investigated. The influence of bearing geometric changes and cooling medium supply methods were determined. Much of the data is presented in nondimensional form.

Published
1974

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