Spatial variations of ocean wave directional spectra from the Seasat synthetic aperture radar
| Autor: | Frank Monaldo, T. W. Gerling, D. E. Irvine, R.C. Beal, D. G. Tilley |
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| Rok vydání: | 1986 |
| Předmět: |
Synthetic aperture radar
Atmospheric Science Ecology Mesoscale meteorology Paleontology Soil Science Forestry Sea state Aquatic Science Oceanography Geodesy Swell Ocean dynamics Geophysics Space and Planetary Science Geochemistry and Petrology Radar imaging Wind wave Earth and Planetary Sciences (miscellaneous) Bathymetry Geology Earth-Surface Processes Water Science and Technology |
| Zdroj: | Journal of Geophysical Research. 91:2433 |
| ISSN: | 0148-0227 |
| DOI: | 10.1029/jc091ic02p02433 |
| Popis: | Seasat synthetic aperture radar ocean wave spectra for a 900-km pass are analyzed and interpreted in the context of both their probable generation sources and their surface current and bathymetric modifiers. Systematic vector wavenumber variations of several times the standard error of determination (about 1.5 percent in magnitude and 0.9 deg in direction) occur along the entire 900-km pass. The large-scale spatial variation of a 200-m swell system can be accurately accounted for as a result of dispersion from a distant storm. The more local variations are qualitatively well correlated in position with known currents and bathymetry but show systematic biases that appear partly due to an environmentally dependent instrument transfer function in the regions of high current and highest sea state. There is also substantial evidence that a large angular deviation in the center of the pass is the result of a mesoscale eddy just to the east. |
| Databáze: | OpenAIRE |
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