Remote sensing-based deformation monitoring of pagodas at the Bagan cultural heritage site,Myanmar  

作　　者：Fulong Chen Wei Zhou Yunwei Tang Ru Li Hui Lin Timo Balz Jin Luo Pilong Shi Meng Zhu Chaoyang Fang 

机构地区：[1]Key Laboratory of Poyang Lake Wetland and Watershed Research,Ministry of Education & School of Geography and Environment,Jiangxi Normal University,Nanchang,People’s Republic of China [2]Key Laboratory of Digital Earth Science,Aerospace Information Research Institute,Chinese Academy of Sciences,Beijing,People’s Republic of China [3]International Centre on Space Technologies for Natural and Cultural Heritage under the Auspices of UNESCO,Beijing,People’s Republic of China [4]State Key Laboratory of Information Engineering in Surveying,Mapping and Remote Sensing,Wuhan,People’s Republic of China

出　　处：《International Journal of Digital Earth》2022年第1期770-788,共19页国际数字地球学报（英文）

基　　金：supported by the National Key Research and Development Program of China[No.2017YFE0134400];the Jiangxi Provincial Technology Innovation Guidance Program(National Science and Technology Award Reserve Project Cultivation Program)[Grant No.20212AEI91006];the National Natural Science Foundation of China(NSFC)[Grant No.41771489].

摘　　要：As a World Cultural Heritage site with sacred landscape featuring an exceptional range of Buddhist art and architecture,much attention has been focused on the sustainable development of Bagan(Myanmar).Particularly,the monitoring of landscape surface subsidence and monument instability is of great importance to the protection and development planning of the Bagan heritage site.In this study,we applied high resolution TerraSAR-X imagery acquired from 2019 to 2020 for deformation monitoring based on the small baseline subset(SBAS)and persistent scatterer synthetic aperture radar interferometry(PSInSAR)approaches.We identified several hotspots and pagodas with displacement anomalies linked to land cover change and previous earthquakes.The cross comparison between SBAS and PSInSAR and the precision of height estimates derived by PSInSAR indicated a millimetric precision of the derived deformation products.The combination of the two multi-temporal SAR interferometry approaches satisfies the two-scale monitoring requirements from landscapes to monuments,particularly for large-scale World Heritage sites.The non-contact monitoring method has potential when traditional methods using field accessibility and surveillance are constrained.

关 键 词：INSAR cultural heritage Bagan deformation monitoring UNESCO PAGODA 

分 类 号：TP7[自动化与计算机技术—检测技术与自动化装置]