| 講演抄録/キーワード |
| 講演名 |
2014-10-24 08:40
SAR Image Modulation by Ocean Current Variations Induced by Underwater Phenomena: Interpretation Using SPM Scattering Model Dan-Bee Hong(UST)・○Chan-Su Yang・Kazuo Ouchi(KIOST) SANE2014-92 |
| 抄録 |
(和) |
This paper presents the quantitative analyses of radar backscatter from sea surface in the presence of varying
currents associated with internal waves and bottom topography. The waveheight spectrum of sea surface perturbed by
slowly-varying surface current is computed using the first-order solution of the action balance equation which describes
the hydrodynamic interaction between the surface waves and varying current. The backscatter radar cross section (RCS) is
then computed using the small perturbation method (SPM) and the results are compared with the RADARSAT-1 images
of internal waves in the East/Japan Sea, and also with the ENVISAT-ASAR image modulated by varying surface currents
in the shallow waters of Yellow Sea in the west coast of the Korean Peninsula. On a whole the agreement is fairly good,
but some discrepancy has been observed and the reasons are discussed. |
| (英) |
This paper presents the quantitative analyses of radar backscatter from sea surface in the presence of varying
currents associated with internal waves and bottom topography. The waveheight spectrum of sea surface perturbed by
slowly-varying surface current is computed using the first-order solution of the action balance equation which describes
the hydrodynamic interaction between the surface waves and varying current. The backscatter radar cross section (RCS) is
then computed using the small perturbation method (SPM) and the results are compared with the RADARSAT-1 images
of internal waves in the East/Japan Sea, and also with the ENVISAT-ASAR image modulated by varying surface currents
in the shallow waters of Yellow Sea in the west coast of the Korean Peninsula. On a whole the agreement is fairly good,
but some discrepancy has been observed and the reasons are discussed. |
| キーワード |
(和) |
Synthetic aperture radar (SAR) / surface currents / small perturbation method / internal waves / bottom topography / / / |
| (英) |
Synthetic aperture radar (SAR) / surface currents / small perturbation method / internal waves / bottom topography / / / |
| 文献情報 |
信学技報, vol. 114, no. 264, SANE2014-92, pp. 157-162, 2014年10月. |
| 資料番号 |
SANE2014-92 |
| 発行日 |
2014-10-15 (SANE) |
| ISSN |
Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 |
著作権に ついて |
技術研究報告に掲載された論文の著作権は電子情報通信学会に帰属します.(許諾番号:10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) |
| PDFダウンロード |
SANE2014-92 |