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摘要:
Structural characteristic of surface soil ground has great effect on the ground motion amplitude when earthquake happens. Recent studies in Japan on seismic zonings use a database that covers entire Japan with 1 km mesh size, which is useful for prefecture scale researches. However, it is hard, even with 500 m or 250 m mesh sizes to consider a city, a county or award as scale studies. Kanagawa Prefecture is highly urbanized and vulnerable to seismic disaster. The prefecture suffered a wide spread damage during the 1923 Kanto earthquake. In this paper, we deploy a very fine mesh 50 × 50 m mesh to develop a general seismic intensity map useful for micro scale disaster management for local governments and educational information for earthquake preparedness promotion. In this paper, first we prepared two detailed databases for 50 × 50 m mesh size over entire Kanagawa Prefecture. One was for geologic formations and the other the geomorphologic condition. Then these databases were used for preparation of high-resolution digital soil classification maps for 15 categories of micro landforms of prefecture. The later database was used for mapping the site amplification factors for 50 × 50 m mesh by applying the empirical relations for AVS30. We could create a GIS platform with sufficient accuracy to consider potential risk analysis.
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篇名 Development of Detailed Micro-Land Form Database and Its Application to Site Amplification Characteristics in Kanagawa Prefecture, Japan
来源期刊 地理信息系统(英文) 学科 医学
关键词 Micro-Landform GIS SITE Response SITE AMPLIFICATION Factor GEOLOGIC DATABASE Geomorphologic DATABASE
年,卷(期) 2019,(1) 所属期刊栏目
研究方向 页码范围 66-81
页数 16页 分类号 R73
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研究主题发展历程
节点文献
Micro-Landform
GIS
SITE
Response
SITE
AMPLIFICATION
Factor
GEOLOGIC
DATABASE
Geomorphologic
DATABASE
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研究去脉
引文网络交叉学科
相关学者/机构
期刊影响力
地理信息系统(英文)
半月刊
2151-1950
武汉市江夏区汤逊湖北路38号光谷总部空间
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143
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