Observations of wave field and intertidal morphology with X-band radar system.

X波段雷达系统波场和潮间带形态观测。

• 批准号: 15360260
• 负责人: NISHIMURA Hitoshi
• 金额: $ 5.12万
• 依托单位: University of Tsukuba
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2003
• 资助国家: 日本
• 起止时间: 2003 至 2004
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-15360260/
• 关键词: X band radar system; Intertidal morphology; Surf zone; Shoreline positions; Foreshore slopes; Remote sensing; Storm observation; Edge wave; Xバンドレーダ; リモート観測; 継続モニタリング; Xバントレーダ; 継続観測

Applications of X-band nautical radars for coastal studies have become popular recently. Intertidal morphology and wave run-up observations an monitoring with an X-band radar during a storm event and calm conditions were conducted to show the effectiveness of radar system in coastal measurements under high wave conditions.The radar system was operated at the research pier HORS, Hasaki Japan, and radar echo images were collected during a passage of storms and for calm condition continuously.Analyses on radar echo images were done and (i)longshore distribution of mean shoreline positions and intertidal foreshore slopes, and (ii)temporal and spatial variation of wave run-up, are discussed.The result intertidal bathymetry monitoring describes the seasonal changes of shore profiles. The shore profile becomes uneven under calm conditions forming cusps with wavelength of several hundred meters. Under stormy condition, cusps and other rhythmic features disappear and coastline becomes homogeneous.

X波段航海雷达在沿海研究中的应用最近变得流行。在暴风雨事件期间进行了潮间的形态和波浪升高观察，并进行了X频段雷达的监测，并进行了镇定条件，以显示雷达系统在高波条件下的沿海测量中的有效性。雷达系统在日本的Hasaki Hoss，Hasaki Japan，Hasaki Hoss，Hasaki Hass，Hasaki Hoss，Hasaki Hoss，radar Echo和radar Esho图像均摄取，并在漫不经心的情况下（均为漫不经心）（均为漫不经意）（均为漫不经意地）。讨论了平均海岸线位置和潮间前的前坡斜率，以及（ii）波动的时间和空间变化。结果潮间带的测深量监测描述了岸边剖面的季节性变化。在平静的条件下，沿着波长为几百米的尖端变为不平衡。在暴风雨的状态下，尖口和其他节奏特征消失了，海岸线变得同一。

项目成果

Lee, J.H., S.Takewaka: "Wave and Morphology Observations of shallow coastal areas using X-band Nautical radar"Proceedings of the International Conference on Coastal Engineering. (in print). (2004)

Lee, J.H., S.Takewaka：“使用 X 波段航海雷达对浅海地区的波浪和形态进行观测”国际海岸工程会议论文集。

Nearshore bathymetry around HORS derived from an enhanced PIV analysis of dominating frequency radar images

HORS 周围的近岸测深源自主频雷达图像的增强 PIV 分析

• 期刊: (in preparation)
• 作者: Ahmed S.M.;Ahmed;Takewaka S.
• 通讯作者: Takewaka S.

Use of X-band radar for wave and morphology analysis, Coastal Engineering 2004

使用 X 波段雷达进行波浪和形态分析，海岸工程 2004 年

• 期刊: Proceedings of 29th ICCE, ASCE (in print)
• 作者: Lee J.H.;Takewaka S.;Sakai T.;Shinbo O.
• 通讯作者: Shinbo O.

Wave run-up analyses during a storm event with nautical X-band radar

使用航海 X 波段雷达在风暴事件期间进行波浪助推分析

• 期刊: International Conference on Asian and Pacific Coasts, APAC2005 (accepted)
• 作者: Takewaka S.;Nishimura H.
• 通讯作者: Nishimura H.

Use of X-band radar for wave and morphology analysis

使用 X 波段雷达进行波和形态分析

• 发表时间: 2005
• 期刊: Coastal Engineering 2004 (印刷中)
• 作者: Lee J.H.;Takewaka S.;Sakai T.;Shinbo O.
• 通讯作者: Shinbo O.