地质学报Issue(6):230-241,12.
LiDAR 技术在活动构造研究中的应用
LiDAR Survey in Active Tectonics Studies:An Introduction and Overview
摘要
Abstract
The active fault mapping is the basis of active tectonics studies.Traditionally,the mapping is conducted by combining of interpretations of remote sensing images and aerial photographs,and field survey at typical sites along the fault.However,these methods are time consuming,and could only obtain the deformation patter along the fault at some typical sites,not along the whole fault strand.The light detection and ranging (LiDAR)survey can directly measure the elevation of the bare ground surface with high precision,which could provide the highest resolution data for active fault mapping along the entire fault strand so far.Recently,LiDAR surveys along major active faults are widely conducted in American, Europe,and Japan,even in Taiwan province of China.In active fault mapping,LiDAR method has advantages over traditional field investigations especially in forestry and cities.Moreover,displacement measurements is efficient, accurate and of high precision based on high resolution LiDAR data;differencing pre-and post-earthquake LiDAR data is efficient in detecting co-seismic deformation pattern along the seismogenic faults.In this paper,we review the major researches of LiDAR surveys in active tectonics researches;and introduce the major advantages and prospect of LiDAR survey.In future, statewide airborne LiDAR survey along the major active faults will be imperative in China;hence,LiDAR data will be the major data source for active tectonics studies.关键词
激光雷达测量(LiDAR)/活动构造/断裂/同震变形/位错Key words
LiDAR/active tectonics/fault/co-seismic deformation/displacement引用本文复制引用
任治坤,陈涛,张会平,郑文俊,张培震..LiDAR 技术在活动构造研究中的应用[J].地质学报,2014,(6):230-241,12.基金项目
本文为中国地震局地震行业专项(201308012)、中国地震局地质研究所中央级公益性科研院所基本科研业务专项(编号IGCEA1125, IGCEA1220)、留学人员科技活动项目择优项目(任治坤)与国家自然科学基金(41102136,41304073)资助的成果。 ()