Development of Method for Creating Topographically Adjusted Cells and Preparing Geometric Attribute Data for Inundation Analysis Model

• YOSHIKAWA Natsuki

  Institute of Science and Technology, Niigata University

• MIYAZU Susumu

  Graduate School of Science and Technology, Niigata University

• ABE Satoshi

  Graduate School of Science and Technology, Niigata University

• MISAWA Shin-ichi

  Institute of Science and Technology, Niigata University

Bibliographic Information

Other Title

• 内水氾濫解析モデルのための地形適合セル生成および幾何属性情報整理手法の開発
• ナイスイ ハンラン カイセキ モデル ノ タメ ノ チケイ テキゴウ セル セイセイ オヨビ キカ ゾクセイ ジョウホウ セイリ シュホウ ノ カイハツ

Abstract

A newly developed flood inundation simulation model targeting to low-lying agricultural watersheds adopted Topographically Adjusted Cells (TAC) to calculate floodwater movement. The TAC is characterized by irregular shaped polygonal cells which are bounded by linear structures such as roads or elevation gaps. These features result in higher calculation efficiency and reproducibility through the avoidance of unnecessary numerical grid allocation and having the linear boundaries possess elevation values. Despite these advantages, the simulation model with TAC has not been widely used due to the cost in terms of labor and time involved in the acquisition and arrangement of the geometric attribute of the cells. To overcome these technical hurdles, we developed a method to create TAC using GIS functions and to prepare complex geometric attribute data with calculation algorisms. This paper introduces the labor and time-saving method to arrange TAC based on the example of watershed model that the we developed.

Journal

• Transactions of The Japanese Society of Irrigation, Drainage and Rural Engineering

  Transactions of The Japanese Society of Irrigation, Drainage and Rural Engineering 81 (2), 185-191, 2013

  The Japanese Society of Irrigation, Drainage and Rural Engineering

Keywords

• Topographically adjusted cells
• Inundation analysis
• Polygons
• Attribute data
• GIS
• Paddy field dam

Details

• CRID: 1390282680265306496
• NII Article ID: 10031171490
• NII Book ID: AA12240517
• DOI: 10.11408/jsidre.81.185
• ISSN: 18847242
• ISSN: 18822789
• NDL BIB ID: 024715251
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I024715251
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • CiNii Articles
  • KAKEN
  • Crossref
• Abstract License Flag: Disallowed