利用CORS站网监测温州-丽水区域环境负荷对地壳垂直形变和重力变化的影响  

Monitoring of Crustal Vertical Deformation and Gravity Change Caused by Environmental Load in Wenzhou-Lishui Region Using CORS Network

作　　者：毛卫华 李婉秋 李爱勤 蒋涛[2] 吉渊明 刘立 王伟[2] MAO Weihua;LI Wanqiu;LI Aiqin;JIANG Tao;JI Yuanming;LIU Li;WANG Wei(Zhejiang Academy of Surveying and Mapping,Hangzhou 310012,China;Chinese Academy of Surveying and Mapping,Beijing 100830,China;School of Surveying and Geo-Informatic,Shandong Jianzhu University,Jinan 250101,China)

机构地区：[1]浙江省测绘科学技术研究院,浙江杭州310012 [2]中国测绘科学研究院,北京100830 [3]山东建筑大学测绘地理信息学院,山东济南250101

出　　处：《武汉大学学报（信息科学版）》2020年第10期1508-1516,共9页Geomatics and Information Science of Wuhan University

基　　金：国家自然科学基金(41374081,41674024);国家重点研发计划(2016YFB0501702);中国测绘科学研究院基本科研业务费(7771806);中央级公益性科研院所基本科研业务费(AR1905)。

摘　　要：基于CORS(continuously operating reference stations)站网综合解算,采用负荷场移去恢复技术,研究了温州-丽水区域环境负荷引起的地壳垂直形变与地面重力时空变化,并与GRACE (gravity recovery and climate experiment)重力卫星结果进行比较。研究发现:①环境负荷对地壳垂直形变与重力变化的影响分别达到厘米和十几微伽量级,季节性变化特征显著;②冬季地壳垂直形变与重力变化分别呈现由西至东依次递减与增加趋势;③与GRACE结果相比,除局部区域存在差异,整体上时空变化趋势具有较高一致性;④CORS站网能够监测地表环境负荷引起的地壳垂直形变与重力场时空变化。该研究结果可为环境动力学研究与地质灾害监测预警提供重要参考。Based on the comprehensive calculation of CORS network, this paper uses the load field removalrecovery technology to study the crustal vertical deformation and ground gravity spatio-temporal changes caused by environmental load in Wenzhou-Lishui region and compares it with GRACE gravity satellite results. Some conclusions are drown as follows: ① The effects of environmental load on the vertical deformation and gravity change of crust are up to the centimeter and ten micro-gauge levels, respectively, and the seasonal variation characteristics are significant. ② The vertical deformation and gravity change in winter show a decreasing and increasing trend from west to east, respectively. ③ Compared with GRACE results, in addition to local region differences, the overall trend of spatiotemporal changes has a higher consistency. ④ The CORS network can monitor the spatiotemporal changes of crustal vertical deformation and gravity field caused by total surface environmental load. The research methods and results of this paper can provide an important reference for environmental dynamics research and geological disaster monitoring and early warning.

关 键 词：CORS站网 环境负荷 垂直形变 重力变化 

分 类 号：P223[天文地球—大地测量学与测量工程]