scholarly journals Linear Dispersion Relation and Depth Sensitivity to Swell Parameters: Application to Synthetic Aperture Radar Imaging and Bathymetry

2015 ◽  
Vol 2015 ◽  
pp. 1-10 ◽  
Author(s):  
Valentina Boccia ◽  
Alfredo Renga ◽  
Giancarlo Rufino ◽  
Marco D’Errico ◽  
Antonio Moccia ◽  
...  
Keyword(s):  
Synthetic Aperture Radar ◽  
Gravity Waves ◽  
Sea Surface ◽  
Synthetic Aperture ◽  
Linear Dispersion ◽  
Budget Model ◽  
Linear Dispersion Relation ◽  
Waves Propagation ◽  
Depth Sensitivity ◽  
Aperture Radar

Long gravity waves or swell dominating the sea surface is known to be very useful to estimate seabed morphology in coastal areas. The paper reviews the main phenomena related to swell waves propagation that allow seabed morphology to be sensed. The linear dispersion is analysed and an error budget model is developed to assess the achievable depth accuracy when Synthetic Aperture Radar (SAR) data are used. The relevant issues and potentials of swell-based bathymetry by SAR are identified and discussed. This technique is of particular interest for characteristic regions of the Mediterranean Sea, such as in gulfs and relatively close areas, where traditional SAR-based bathymetric techniques, relying on strong tidal currents, are of limited practical utility.

Effectiveness of WRF wind direction for retrieving coastal sea surface wind from synthetic aperture radar

Wind Energy ◽  
2012 ◽  
Vol 16 (6) ◽  
pp. 865-878 ◽  
Author(s):  
Yuko Takeyama ◽  
Teruo Ohsawa ◽  
Katsutoshi Kozai ◽  
Charlotte Bay Hasager ◽  
Merete Badger
Keyword(s):  
Synthetic Aperture Radar ◽  
Wind Direction ◽  
Surface Wind ◽  
Sea Surface ◽  
Synthetic Aperture ◽  
Sea Surface Wind ◽  
Coastal Sea ◽  
Aperture Radar

scholarly journals Mapping sea surface velocities in the Changjiang coastal zone with advanced synthetic aperture radar

2014 ◽  
Vol 33 (11) ◽  
pp. 141-149 ◽  
Author(s):  
Lihua Wang ◽  
Yunxuan Zhou ◽  
Jianzhong Ge ◽  
Johnny A. Johannessen ◽  
Fang Shen
Keyword(s):  
Synthetic Aperture Radar ◽  
Coastal Zone ◽  
Sea Surface ◽  
Synthetic Aperture ◽  
Aperture Radar

Synthetic aperture radar imaging of sea surface life and fishing activities

1992 ◽  
Vol 30 (5) ◽  
pp. 1085-1089 ◽  
Author(s):  
M. Petit ◽  
J.-M. Stretta ◽  
H. Farrugio ◽  
A. Wadsworth
Keyword(s):  
Synthetic Aperture Radar ◽  
Radar Imaging ◽  
Sea Surface ◽  
Synthetic Aperture ◽  
Aperture Radar

scholarly journals Capabilities of Chinese Gaofen-3 Synthetic Aperture Radar in Selected Topics for Coastal and Ocean Observations

2018 ◽  
Vol 10 (12) ◽  
pp. 1929 ◽  
Author(s):  
Xiao-Ming Li ◽  
Tianyu Zhang ◽  
Bingqing Huang ◽  
Tong Jia
Keyword(s):  
Synthetic Aperture Radar ◽  
Surface Wind ◽  
Wave Mode ◽  
Sea Surface ◽  
Synthetic Aperture ◽  
Radiometric Calibration ◽  
Sea Surface Wind ◽  
Wind Retrievals ◽  
Sea Surface Wave ◽  
Aperture Radar

Gaofen-3 (GF-3), the first Chinese spaceborne synthetic aperture radar (SAR) in C-band for civil applications, was launched on August 2016. Some studies have examined the use of GF-3 SAR data for ocean and coastal observations, but these studies generally focus on one particular application. As GF-3 has been in operation over two years, it is essential to evaluate its performance in ocean observation, a primary goal of the GF-3 launch. In this paper, we offer an overview demonstrating the capabilities of GF-3 SAR in ocean and coastal observations by presenting several representative cases, i.e., the monitoring of intertidal flats, offshore tidal turbulent wakes and oceanic internal waves, to highlight the GF-3’s full polarimetry, high spatial resolution and wide-swath imaging advantages. Moreover, we also present a detailed analysis of the use of GF-3 quad-polarization data for sea surface wind retrievals and wave mode data for sea surface wave retrievals. The case studies and statistical analysis suggest that GF-3 has good ocean and coastal monitoring capabilities, though further improvements are possible, particularly in radiometric calibration and stable image quality.

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