茨城県青塚海岸における荒天時の底質粗粒化機構に関する研究

• 有働 恵子

  東北大学災害制御研究センター

• 田辺 博規

  前橋市役所

• 真野 明

  東北大学災害制御研究センター

書誌事項

タイトル別名

• Short-term Sand Coarsening Process during a Storm at Aotsuka Beach

抄録

Field observations of backshore morphology and sand grain size were conducted at the Aotsuka beach facing the Pacific Ocean in Japan, in order to investigate both wave and wind impacts on short-term backshore processes at a nourishment beach between headlands. The sand was coarsened notably only just after large waves during a storm in January 2005 in the seaward part of backshore; and then became finer in February. Sand coarsening and fining processes could be explained from calculation results of transport and depositional thresholds of sand grain size that the coarse sand was transported to the run-up area by large waves and then to the landward by strong landward winds. A new simple method using Hjulstrom diagram was developed to estimate the thresholds under both wave and wind action.

収録刊行物

• 海岸工学論文集

  海岸工学論文集 55 706-710, 2008

  公益社団法人 土木学会

キーワード

• General Chemical Engineering

詳細情報

• CRID: 1390001204550262528
• NII論文ID: 130003992342
• DOI: 10.2208/proce1989.55.706
• ISSN: 18848222
• ISSN: 09167897
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可