Search Results - "Kraft, Barbara J."

Detailed Bathymetric Surveys Offshore Santa Rosa Island, FL: Before and After Hurricane Ivan (September 16, 2004) by Kraft, B J, de Moustier, C

“…Two weeks before Hurricane Ivan reworked the shores and nearshore seafloor of the northeastern Gulf of Mexico, swath bathymetry surveys were conducted with…”
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Persistence of sharp acoustic backscatter transitions observed in repeat 400 kHz multibeam echosounder surveys offshore Panama City, Florida, over 1 and 24 months by de Moustier, Christian, Kraft, Barbara J.

“…The Target and Reverberation Experiment 2013 (TREX13), conducted offshore Panama City, FL, from April to June 2013, sought to determine which environmental…”
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High-frequency sediment acoustics over transitions from dense shell hash to mud: Repeat surveys at 7 frequencies from 150 kHz to 450 kHz by de Moustier, Christian, Kraft, Barbara J.

“…Seafloor acoustic backscatter data were collected with a high-frequency multibeam echo-sounder offshore Panama City Beach, FL, in May 2013, as part of the…”
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In situ calibration of seafloor acoustic backscatter data from swath mapping sonars by de Moustier, Christian, Kraft, Barbara J.

“…Geometric and radiometric corrections are necessary to convert raw seafloor acoustic backscatter data to imagery in which the intensity variations are due to…”
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Impact of ocean variability on coherent underwater acoustic communications during the Kaual experiment (KauaiEx) by SONG, Aijun, SONG, Mohsen Badiey H. C, HODGKISS, William S, PORTER, Michael B

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Angular dependence of high-frequency seafloor acoustic backscatter (200–400 kHz) by de Moustier, Christian, Wendelboe, Gorm, Maillard, Eric, Kraft, Barbara J.

“…Acoustic backscatter measurements were made with a RESON 7125-V2 multifrequency, multibeam sonar at 50 kHz increments between 150 and 450 kHz. The sonar was…”
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Effects of ocean thermocline variability on noncoherent underwater acoustic communications by Siderius, Martin, Porter, Michael B., Hursky, Paul, McDonald, Vincent

“…The performance of acoustic modems in the ocean is strongly affected by the ocean environment. A storm can drive up the ambient noise levels, eliminate a…”
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Seabed characterization on the New Jersey middle and outer shelf: correlatability and spatial variability of seafloor sediment properties by Goff, John A., Kraft, Barbara J., Mayer, Larry A., Schock, Steven G., Sommerfield, Christopher K., Olson, Hilary C., Gulick, Sean P.S., Nordfjord, Sylvia

“…Nearly 100 collocated grab samples and in situ 65 kHz acoustic measurements were collected on the New Jersey middle and outer shelf within an area that had…”
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Multibeam sonar calibration techniques by De Moustier, Christian, Kraft, Barbara J., McGillicuddy, Glenn

“…The acoustic calibration facility at the University of New Hampshire's Chase Ocean Engineering Laboratory has been used to calibrate several transducer arrays…”
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Comparison of in   situ compressional wave speed and attenuation measurements to Biot–Stoll model predictions by Kraft, Barbara J., Mayer, Larry A., Simpkin, Peter G., Goff, John A.

“…The importance of estimating acoustic wave properties in saturated marine sediments is well known in geophysics and underwater acoustics. As part of the ONR…”
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Stratigraphic Model Predictions of Geoacoustic Properties by Kraft, B.J., Overeem, I., Holland, C.W., Pratson, L.F., Syvitski, J.P.M., Mayer, L.A.

“…Geoacoustic properties of the seabed have a controlling role in the propagation and reverberation of sound in shallow-water environments. Several techniques…”
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KauaiEx: Environmental effects on HF acoustic propagation with application to communications by Porter, Michael B., Hursky, Paul, Siderius, Martin, Badiey, Mohsen, Caruthers, Jerald, Hodgkiss, William S., Raghukumar, Kaustubha, Rouseff, Dan, Fox, Warren, de Moustier, Christian, Calder, Brian, Kraft, Barbara J., McDonald, Keyko, Stein, Peter, Lewis, James K., Rajan, Subramaniam

“…The Kauai Experiment (22 June–9 July 2003) was designed to study high-frequency (8–50 kHz) acoustics in a shallow-water waveguide. In contrast to much of the…”
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In situ measurement of sediment acoustic properties and relationship to multibeam backscatter by Kraft, Barbara J., Fonseca, Luciano, Mayer, Larry A., McGillicuddy, Glenn, Ressler, Jason, Henderson, Jennifer, Simpkin, Peter G.

“…In support of the Office of Naval Research’s Geoclutter Program, in situ acoustic and resistivity measurements were obtained using ISSAP, a device developed…”
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In situ measurement of geoacoustic sediment properties: An example from the ONR Mine Burial Program, Martha’s Vineyard Coastal Observatory by Kraft, Barbara J., Mayer, Larry A., Simpkin, Peter G., Goff, John A.

“…In support of the Office of Naval Research’s Mine Burial Program (MBP), in situ acoustic and resistivity measurements were obtained using ISSAP, a device…”
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