| 面向地震应急的山区人口百米格网分布——以麟游县为例 |
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| 引用本文： | 郭建兴,姬建中,和朝霞,孙哲.面向地震应急的山区人口百米格网分布——以麟游县为例[J].地震地磁观测与研究,2018,39(6):150-157. |
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| 作者姓名： | 郭建兴 姬建中 和朝霞 孙哲 |
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| 作者单位： | 中国西安 710068 陕西省地震局 |
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| 基金项目： | 中国地震局地震科技星火计划（项目编号：XH18045Y）；中国地震局地震应急青年重点任务（项目编号：CEA_EDEM-201715） |
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| 摘 要： | 破坏性地震发生后，山区易发生滑坡、泥石流等地质灾害。精细化人口空间分布数据能够有效提升灾情评判精度，为应急救援决策提供参考依据。本文以陕西省麟游县为例，利用"天地图"高分辨率遥感影像解译大比例尺居民地数据，结合人口、行政区划等数据，利用GIS（地理信息系统）技术制作100 m×100 m格网人口分布数据。通过与陕西省地震局现有人口空间数据进行对比，发现百米格网人口分布数据可明显提升山区次生灾害影响人口计算结果的可靠性。
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| 关 键 词： | 天地图 地震应急 居民地 百米格网 人口分布 |
Study on the distribution of 100 m grid in mountainous area for earthquake emergency-a case study of Linyou County |
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| Guo Jianxing,Ji Jianzhong,He Zhaoxia,Sun Zhe.Study on the distribution of 100 m grid in mountainous area for earthquake emergency-a case study of Linyou County[J].Seismological and Geomagnetic Observation and Research,2018,39(6):150-157. |
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| Authors: | Guo Jianxing Ji Jianzhong He Zhaoxia Sun Zhe |
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| Institution: | Shaanxi Earthquake Agency, Xi'an 710068, China |
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| Abstract: | After the destructive earthquake, geological disasters such as landslides and debris flows may cause serious casualties in mountains area. With the high-fine population spatial distribution data, scientists are able to assess the exact loss of damage. In this paper, taking Linyou County in Shaanxi Province as an example, the author extracts large-scale resident vector data by the high-resolution remote sensing map of the "Tianditu". Then, combined with population and administrative divisions data, the author made the population distribution data in per 100 m×100 m grid. By comparing with the existing population spatial data of Earthquake Administration of Shaanxi Province, it is found that the population distribution data of the 100 m grid is expected to significantly improve the reliability of the population calculation results affected by the secondary disasters in the mountain areas. |
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| Keywords: | Tianditu earthquake emergency resident vector data 100 m grid population distribution |
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