2018年夏季莱州湾南部寿光台风洪水受害区遥感监测
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摘要
受台风影响,2018年8月18日—8月20日莱州湾南部潍坊多地接连遭遇强降水,潍坊境内弥河寿光段发生多处决堤和洪水倒灌。利用遥感手段,选取受灾前8月2日和受灾后8月22日两幅高分一号(GF-1)卫星影像对受灾区进行对比分析,采用归一化植被指数(NDVI)提取主要的淹没区域,根据提取结果估算受灾面积,并结合河道信息分析受灾成因。
During 18～20 August 2018, Weifang, located in the Southern of Laizhou Bay, encountered heavy rainfall due to typhoon, and causing multiple dyke burst and flood backflush in the Shouguang section of the Mi River.In this study, two GF-1 satellite images before(August 2 th, 2018) and after(August 22~(nd), 2018) the disaster, are used to compare and analyze the flood-affected area. The Normalized Difference Vegetation Index(NDVI) is used to extract the main flood submerged area and then the flood-affected areas are estimated. In addition, the river channel information are applied to analysis the causes of the disaster.
During 18～20 August 2018, Weifang, located in the Southern of Laizhou Bay, encountered heavy rainfall due to typhoon, and causing multiple dyke burst and flood backflush in the Shouguang section of the Mi River.In this study, two GF-1 satellite images before(August 2 th, 2018) and after(August 22~(nd), 2018) the disaster, are used to compare and analyze the flood-affected area. The Normalized Difference Vegetation Index(NDVI) is used to extract the main flood submerged area and then the flood-affected areas are estimated. In addition, the river channel information are applied to analysis the causes of the disaster.
引文
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[2] Xing QG,Tosi LG,Braga F,et all.Interpreting the progressive eutrophication behind the world’s largest macroalgal blooms with water quality and ocean color data[J].Natural Hazards,2015,78:7- 21.
[3] 邢前国,董志军,王玉珏,等.渤海典型生态灾害的发展变化特征及演化趋势[J].海岸科学,2017,4(01) :11- 18.
[4] 王军,许世远,石纯等.基于多源遥感影像的台风灾情动态评估——研究进展[J].自然灾害学报,2008(03) :22- 28.
[5] 钟仕全,莫建飞,罗永明,等.基于GF-1遥感数据监测的岩溶洼地洪涝灾害特征分析[J].气象研究与应用,2016,37(01) :83- 87.
[6] 黄振国,陈仲新,刘芳清.基于HJ-1影像的大棚菜地遥感监测技术研究——以山东寿光市为例[J].中国农业资源与区划,2013(05) :102- 106.
[7] 白照广.高分一号卫星的技术特点[J].中国航天,2013(08) :5- 9.
[8] 杨闫君,占玉林,田庆久,等.基于GF-1/WFV NDVI时间序列数据的作物分类[J].农业工程学报,2015,31(24) :155- 161.
[9] 郝建亭,杨武年,李玉霞,等.基于FLAASH的多光谱影像大气校正应用研究[J].遥感信息,2008(01) :78- 81.
[10] 刘江,岳庆兴,邱振戈,等.RPC校正方法研究[J].国土资源遥感,2013,25(01) :61- 65.
[11] 苏亚丽,郭旭东,雷莉萍,等.基于多源卫星遥感的暴雨灾情时空动态信息的提取[J].地球信息科学学报,2018,20(07) :1004- 1013.
[12] Singh K V,Setia R,Sahoo S,et all.Evaluation of NDWI and MNDWI for assessment of waterlogging by integrating digital elevation model and groundwater level[J].Geocarto International,2015,30(06) :650- 661.