Field observations on bottom profile and vertical distributions of sediment for the modelling of sediment transpotation process

沉积物底部剖面和垂直分布的现场观测，用于模拟沉积物输送过程

• 批准号: 21560540
• 负责人: BABA Yasuyuki
• 金额: $ 3万
• 依托单位: Kyoto University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2009
• 资助国家: 日本
• 起止时间: 2009 至 2011
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21560540/
• 关键词: 自然現象観測・予測; モデル化; 海底地形; 底質調査

Both quantitative and qualitative aspects of sediment distribution would be recognized to play an important role for proper management in a coastal zone.In this research, some field observations below have been conducted in Joetsu-Ogata coast, Japan since 2009 in order to investigate sediment distribution in the cross-shore direction and the cross-section.1. bottom profile measurement by GPS sounder, 2. sediment sampling(on the bottom surface), 3. sampling of boring coresMain results are as follows1. only fine sand deposits offshore of the bar2. layered structure observes in some sample and the depth of the structure is around less than 1m3. coarse and very coarse sand exist in the core sample close to the shore line4. very coarse sand and clay layer in the trough. The layered structure would be the consequence of mixing process by the most recent high-wave conditions. The vertical distributions of sediment show both the qualitative information of existing sediment and the mixing history by the external forces.

沉积物的定量和定性分布对于海岸带的合理管理都具有重要意义，本研究从2009年开始在日本上越-绪方海岸进行了以下几项野外观测，以研究沉积物沿海岸方向和断面的分布情况。GPS测深仪测量海底剖面;沉积物取样（在底部表面），3.钻孔岩芯取样主要结果如下1.只有细砂沉积在沙洲2的近海。部分样品中观察到层状结构，其深度约小于1 m3。粗砂和极粗砂存在于靠近海岸线的岩心样品中4。槽中的非常粗的砂和粘土层。分层结构是最近的高波条件混合过程的结果。泥沙的垂向分布既反映了现有泥沙的定性信息，又反映了外力作用下泥沙的混合历史。

项目成果

大潟海岸における海底面形状および底質に関する現地観測

现场观测大泻沿岸的海底形状和海底沉积物

• 发表时间: 2011
• 期刊: 京都大学防災研究所年報
• 作者: 日野良太;江種伸之;ほか2名;馬場康之・内山清
• 通讯作者: 馬場康之・内山清

Field observations on bottom profile and grain size of sediment on the seabed

海底剖面和沉积物粒度的现场观测

• 发表时间: 2011
• 期刊: Proc. of the 7th IAHR symposium on RCEM2011
• 作者: Chieko Gomi;Yasuhisa Kuzuha;BABA Yasuyuki and UCHIYAMA Kiyoshi
• 通讯作者: BABA Yasuyuki and UCHIYAMA Kiyoshi

Temporal Variations of Bottom Profile and Sediment along an Observation Pier

沿观察码头底部轮廓和沉积物的时间变化

• 发表时间: 2011
• 期刊: Proc. of the 34th IAHR
• 作者: Chieko Gomi TACHINAMI;Setsuko KUZUHA;Yasuhisa(代表 葛葉）;Yasuyuki BABA and Kiyoshi UCHIYAMA
• 通讯作者: Yasuyuki BABA and Kiyoshi UCHIYAMA

Field observations on bottom profile and vertical distributions of sediment in Joetsu-Ogata coast

上越大方海岸海底剖面及沉积物垂直分布的实地观测

• 发表时间: 2012
• 期刊: IAHR-APD2012
• 作者: 五味千絵子,立浪勢津子,葛葉泰久;Yasuyuki BABA and Kiyoshi UCHIYAMA
• 通讯作者: Yasuyuki BABA and Kiyoshi UCHIYAMA

大潟海岸における平面地形および底質のコアサンプリング調査

大泻海岸平坦地形和海底沉积物岩心取样调查

• 发表时间: 2011
• 期刊: 京都大学防災研究所年報
• 作者: 日野良太;江種伸之;ほか2名;馬場康之・内山清;北野利一・高橋倫也・田中茂信;馬場康之・内山清
• 通讯作者: 馬場康之・内山清