發(fā)布時間：2018-04-24 07:20

  本文選題：地面沉降 + 永久散射體��； 參考：《遙感信息》2017年01期

【摘要】：地面沉降是北京平原區(qū)的主要地質(zhì)災(zāi)害之一。針對地下水長期超量開采引發(fā)的大范圍地面沉降,采用雷達遙感的技術(shù)方法對其進行監(jiān)測分析:以2003~2010年間覆蓋北京的31景ENVISAT ASAR數(shù)據(jù)為基礎(chǔ),采用永久散射體干涉測量技術(shù)對北京市平原區(qū)進行長時間序列的地面沉降監(jiān)測,并對比地下水水位變化數(shù)據(jù),通過GIS空間分析的方法討論地面沉降的時空演化特征。結(jié)果表明:2003~2010年,北京市平原區(qū)地表形變速率范圍為-52.1~8.2mm/yr,已經(jīng)形成五大沉降漏斗(朝陽—通州沉降漏斗、天竺—金盞沉降漏斗、來廣營沉降漏斗、高麗營沉降漏斗和昌平沉降漏斗),地面沉降發(fā)生區(qū)域與地下水漏斗形成區(qū)域基本一致。
[Abstract]:Land subsidence is one of the main geological hazards in Beijing Plain. In view of the large-scale ground subsidence caused by long-term over-exploitation of groundwater, radar remote sensing technique is used to monitor and analyze it: based on 31 ENVISAT ASAR data covering Beijing from 2003 to 2010, The permanent scatterer interferometry is used to monitor the land subsidence in Beijing plain area in a long time series, and the variation data of groundwater level are compared. The temporal and spatial evolution characteristics of land subsidence are discussed by means of GIS spatial analysis. The results show that from 2003 to 2010, the rate of surface deformation in Beijing Plain is -52.1mm / yr, which has formed five major subsidence funnels (Chaoyang Tongzhou subsidence funnel, Tianzhu Jincalan subsidence funnel, Lai Guangying subsidence funnel). The subsidence funnel of Gaoliying and Changping is the same as that of groundwater.
【作者單位】： 首都師范大學(xué)資源環(huán)境與旅游學(xué)院;三維信息獲取與應(yīng)用教育部重點實驗室;城市環(huán)境過程與數(shù)字模擬國家重點實驗室培育基地;
【基金】：國家自然科學(xué)基金(41130744,41171335,4140010982)
【分類號】：P642.26

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