| Autor: |
Steven G. Schock, Christopher K. Sommerfield, Larry A. Mayer, Hilary Clement Olson, Sean P. S. Gulick, Barbara J. Kraft, S. Nordfjord, John A. Goff |
| Rok vydání: |
2004 |
| Předmět: |
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| Zdroj: |
Marine Geology. 209:147-172 |
| ISSN: |
0025-3227 |
| DOI: |
10.1016/j.margeo.2004.05.030 |
| Popis: |
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 previously been mapped with multibeam backscatter and bathymetry data, and more recently with chirp seismic reflection profiling. Eighteen short cores were also collected and probed for resistivity-based porosity measurements. The combined data set provides a basis for empirically exploring the relationship among the remotely sensed data, such as backscatter and reflection coefficients, and directly measured seabed properties such as grain size distribution, velocity, attenuation and porosity. We also investigate the spatial variability of these properties through semi-variogram analysis to facilitate acoustic modeling of natural environmental variability. Grain size distributions on the New Jersey shelf are commonly multi-modal, leading us to separately characterize coarse % (>4 mm), fine % ( |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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