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遥感技术与应用  2019, Vol. 34 Issue (6): 1286-1295    DOI: 10.11873/j.issn.1004-0323.2019.6.1286
数据与图像处理     
聚合VGI与GF-2影像的地震救援协助救灾信息获取研究
刘鑫莉1,2(),孟祥磊1,苏伟1(),陈啸1,张晓东1,李林1,苏晓慧3
1.中国农业大学土地科学与技术学院,北京 100083
2.北京师范大学地理科学学部,北京 100875
3.北京林业大学信息学院,北京 100083
The Research on Assistance Information Acquisition for Earthquake Emergency Response by Aggregating VGI Data and GF-2 Images
Xinli Liu1,2(),Xianglei Meng1,Xiao Chen1(),Wei Su1,Xiaodong Zhang1,Lin Li1,Xiaohui Su3
1.College of Land Science and Technology, China Agriculture University, Beijing 100083, China
2.Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China
3.School of Information Science and Technology, Beijing Forestry University, Beijing 100083, China
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摘要:

地震会给人类社会带来巨大损失,在地震发生后及时获得准确有效的地震救援协助救灾信息,为相关部门制定救援方案提供辅助信息,能够最大程度地减少人员伤亡及经济损失,对抢险救灾、应急指挥具有重大意义。地震发生后,为快速获取协助救灾信息,通过Python爬取九寨沟震后微博数据,分类并获取位置信息,聚合地震后自发地理信息(VGI)与遥感影像,进行服务区、最近设施点路径分析,并利用震前震后影像变化提取泥石流滑坡区域。结果表明:震后第一时间对有效数据进行聚合分析,能有效地获取设施点的服务区范围和最优可达路径,形成地理信息互补,在灾害应急等领域发挥出巨大的作用;通过聚合分析VGI与遥感影像数据获取地震协助救灾信息,在应急救援中具有一定可行性。

关键词: VGIGF-2卫星影像聚合协助救灾最短路径服务区查找    
Abstract:

The earthquake will bring huge losses to the human society. After the earthquake, accurate and effective earthquake rescue and relief information can be obtained timely to provide auxiliary information for relevant departments to formulate rescue plans, which can minimize casualties and economic losses, and is of great significance to rescue and emergency command. In order to obtain information to assist disaster relief quickly after the earthquake, weibo data in jiuzhaigou were crawled by Python, classification and location information were obtained, VGI data and remote sensing images were aggregated to do the analysis of service area and the closest facility point path, and the landslide area was extracted by using the image change. The results show that the aggregation analysis of effective data at the first time after the earthquake can effectively obtain the service area and the optimal accessible path of facility point, forming complementary geographic information and playing a great role in disaster emergency response. The research proves that the aggregation analysis of VGI and remote sensing image data to obtain earthquake relief information is feasible in emergency rescue.

Key words: VGI    GF-2 satellite image    Aggregate analysis    Assistance for disaster relief    Shortest path    Find service area
收稿日期: 2018-05-26 出版日期: 2020-03-23
ZTFLH:  TP79  
基金资助: 十三五国家重点研发计划项目“天空地协同遥感监测精准应急服务体系构建与示范”之课题二“天空地一体化协同观测、数据整合与应急信息提取技术研究”(2016YFB0502502)
通讯作者: 苏伟     E-mail: liuxinli@cau.edu.cn;suwei@cau.edu.cn
作者简介: 刘鑫莉(1998-),女,河南周口人,硕士研究生,主要从事VGI与遥感影像在地震应急救援中的应用研究。E?mail: liuxinli@cau.edu.cn
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引用本文:

刘鑫莉,孟祥磊,苏伟,陈啸,张晓东,李林,苏晓慧. 聚合VGI与GF-2影像的地震救援协助救灾信息获取研究[J]. 遥感技术与应用, 2019, 34(6): 1286-1295.

Xinli Liu,Xianglei Meng,Xiao Chen,Wei Su,Xiaodong Zhang,Lin Li,Xiaohui Su. The Research on Assistance Information Acquisition for Earthquake Emergency Response by Aggregating VGI Data and GF-2 Images. Remote Sensing Technology and Application, 2019, 34(6): 1286-1295.

链接本文:

http://www.rsta.ac.cn/CN/10.11873/j.issn.1004-0323.2019.6.1286        http://www.rsta.ac.cn/CN/Y2019/V34/I6/1286

图1  研究方案
图2  设施点服务区
图3  关键代码图
图4  泥石流滑坡提取结果(a) 利用NDVI差值泥石流滑坡提取结果 (b) 人工目视解译泥石流滑坡提取结果
一级分类二级分类VGI信息事例

地震震情

信息

地震参数1.中国地震台网正式测定:8月8日21时19分在四川阿坝州九寨沟县(33.20°N,103.82°E)发生7.0级地震,震源深度20 km
地震监测信息1.截至2017年8月9日19时00分,四川省地震台网共记录到余震总数1 334个,最大余震为8月9日10时17分发生的4.8级地震

地震灾情

信息

人员伤亡

1.【四川九寨沟7.0级地震导致5名旅客遇难】据阿坝州人民政府应急管理办公室消息,初步统计四川九寨沟7.0级地震目前已造成63人受伤、5人死亡(死者均为游客)

2.截至9日3点,四川九寨沟7.0级地震已造成135人受伤、9人遇难

生命线震害信息1.国道544线(原S301线)弓杠岭至九寨天堂段因落石较多且有巨石阻断交通
次生灾害信息1.在九寨沟如意坝区域有明显的滑坡体,堵塞了301省道

应急处置

信息/灾情

响应信息

人员信息

1.武警四川省总队阿坝州支队第十三中队出动30名官兵,在已经坍塌的九寨沟千古情演艺中心废墟下成功抢救出一名被埋人

2.九寨沟县消防大队8人力量已经增援到达漳扎镇

物资信息

1.王老吉与@中国狮子联会 及志愿者齐心协力将爱心凉茶存放到四川九寨沟民政局仓库内

2.从今天开始到8月18日,绵阳市菜鸟驿站联合阿里健康,向九寨沟地震的受灾群众和工作人员免费提物资。打开地图上搜索“救灾物资”,就能找到这些菜鸟驿站救灾补给点

处置效益

信息

灾民救助信息

1.九寨沟景区内近2 000原住民在本寨滞留。现在当地余震不断且山石滚滚、伴有浓烟似得灰尘。还有大概15名居民因工作原因在熊猫海附近失联已经14 h

2. 四川九寨沟7.0级地震【3小时内7架次直升机运送16名群众】14点32分彭丰直升机场迎来第7架直升飞机,带走两名群众。据悉,目前荷叶寨村还有4名失联人员

医疗救护信息

1. 九寨沟县第二人民医院,忙碌一宿的医护人员,短暂休息,很快又将投入新一轮的救援…志愿者帮病人取药、送水,帮助搭帐篷

2.昨晚九寨沟地震发生时,内江医生欧焘和妻子曾连正在九寨沟旅游,住在九寨民俗村,帮助伤者包扎固定,当看到村卫生所只有2名医生时,他们又主动留下来帮忙救治伤员

应急场所信息

1.记者在九寨天堂酒店看到,游客被安置在酒店空旷的地带避险,有的头上打着绷带

2.上午10点,在九寨沟县漳扎镇第二个游客安置点月亮湾,游客正排队有序疏散

表1  VGI信息分类结果
VGI信息类别信息定位结果
灾民救助信息

九寨沟景区内树正寨;九寨沟景区内荷叶寨;

九寨千古情景区;九寨沟如意坝附近等

医疗救护信息

九寨沟县第二人民医院(漳扎镇医院);

九寨沟民俗村卫生所等

应急场所信息

梦幻九寨酒店门口

月亮湾藏乡情

生命线震害信息国道544线(原S301线)弓杠岭至九寨天堂段
表2  VGI信息定位结果
图5  VGI信息影像定位结果
图6  遥感影像目视解译结果
图7  最近设施点及路径
图8  设施点服务区范围
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