Name
Title | ||
|---|---|---|
Simulation Study on the Effect of Wind Direction on SAR Imaging Shallow Water Bathymetry. |
Abstract | ||
|---|---|---|
Shallow water bathymetry is fundamental requirement for environmental information in coastal areas. Traditional bathymetry surveys are not only expensive and time-consuming but also difficult in many shallow water areas, however, indirect technique for remote sensing of shallow water bathymetry such as the optical technique is affected by the weather condition and the water limpidity (1). High resolution Synthetic Aperture Radar (SAR) images have been demonstrated the potential to map shallow water bathymetry features (2) and this is a new technique to extract bathymetry information for coastal areas quickly and economically (3,4). As far as we known, SAR can't image shallow water bathymetry features directly. It images the bathymetry via surface effects induced by tidal currents flow variation over bottom topography under favorable currents and sea surface winds (5), thus the ability of SAR mapping shallow water bathymetry has close relationship with hydrological and meteorological conditions and the radar parameters. In order to extract quantitative information of shallow water bathymetry form SAR images, it is necessary to fully analyze the expression of shallow water bathymetry SAR images under different hydrological and meteorological conditions. Since the SAR imaging mechanism of ocean internal waves is also induced by tidal currents flow variation, so the results about the effect of wind direction on SAR imaging of ocean internal waves could also be referred herein (6). Usually, the expression of shallow water bathymetry SAR images appears dark and bright streaks alternatively, and both streaks have almost the same relative radar backscatter (5). In below figure, three sub-SAR images of shallow water bathymetry were imaging at the same area and the same local time in each one day. However, alternant bright and dark streaks, dark streaks and bright streaks appear on sub-SAR images respectively. |
Year | DOI | Venue |
|---|---|---|
2008 | 10.1109/IGARSS.2008.4778881 | IGARSS |
Keywords | Field | DocType |
wind,bathymetry,internal waves,local time,sar,high resolution,synthetic aperture radar,remote sensing,surface topography,backscatter,ocean waves,radar imaging,wind direction,shallow water,surface waves | Waves and shallow water,Wind wave,Radar imaging,Synthetic aperture radar,Backscatter,Remote sensing,Bathymetry,Wind direction,Geology,Crosswind | Conference |
Volume | Issue | ISSN |
1 | 1 | null |
ISBN | Citations | PageRank |
978-1-4244-2808-3 | 0 | 0.34 |
References | Authors | |
0 | 5 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Kaiguo Fan | 1 | 0 | 1.35 |
| Weigen Huang | 2 | 6 | 6.76 |
| Mingxia He | 3 | 26 | 8.06 |
| Bin Fu | 4 | 0 | 0.68 |
| Xilin Gan | 5 | 0 | 0.34 |