Assessing Earthquake-Indued Surface Deformation at High-Filling/Removing and Non-Filling/Removing Airports in China Using InSAR Technique and Sentinel-1 SAR Data

• Published in: IGARSS 2024 - 2024 IEEE International Geoscience and Remote Sensing Symposium pp. 3465 - 3468
• Main Authors: Zhu, Bao, Wang, Yong, Chen, Hanning
• Format: Conference Proceeding
• Language: English
• Published: IEEE 07.07.2024
• Subjects: Buildings; Deformation; Earth; Earthquake; Earthquakes; high-filling/removing and non-filling/removing airports; Road transportation; SBAS InSAR technique; Sentinel-1; Sentinel-1 data; Surface deformation; Time series analysis
• ISSN: 2153-7003
• DOI: 10.1109/IGARSS53475.2024.10641769

Due to the rugged terrain and high seismic activities in the Qinghai-Tibet Plateau region in western China, highway and railroad track construction is challenging. The airport is alternatively a critical transportation infrastructure. To create a flat area large enough for an airport, one has to fill/remove a significant amount of earth materials. The frequency and intensity of earthquakes are high in this area as well. Thus, it is significant to study the different effects of seismic activities on a high-filling/removing airport compared to nearly a non-filling/removing airport. With the small baseline subset (SBAS) InSAR technique and multi-temporal Sentinel-1 SAR data, we studied the impact of the 2017 Jiuzhaigou earthquake (M w = 7.0) on the surface deformation near two airport areas. One (i.e., Jiuzhai-Huanglong Airport) is high-filling/removing, and the other (Aba-Hongyuan Airport) is nearly nonfilling/removing. Qualitative and quantitative comparative analyses show that seismic activities greatly influence the high-filling/removing earth materials airport.