Satellite observations characterize the impacts of climate change and human activities on permafrost along Qinghai–Tibet Railway

The Innovation Geoscience, Journal Year: 2025, Volume and Issue: unknown, P. 100127 - 100127

Published: Jan. 1, 2025

<p>Climate change poses new challenges to the safe operation of large-scale infrastructure in frozen soil regions worldwide. However, climate feedback engineering fragile permafrost remains unclear. Here, we developed a model combining temperature at top (TTOP) and time-series interferometric synthetic aperture radar (InSAR) using multisource remote sensing data generate key information (ground temperature, deformation, type) about along QTR (Qinghai–Tibet Railway) two pre-defined buffer zones. We quantitatively characterized degradation spatiotemporal deformations 5-km corridor from 2017 2018. Over 5% (1,142 km) show evident settlement (> 20 mm/year) under global warming. coupled anthropogenic disturbance is also noteworthy as proven by intensified instability within 500-m zone, although “cooling down” measures are prominent particularly for vulnerable regions. found that proactive adaptations yield an economic reducing, i.e. $ 0.44 billion scenario SSP3-7.0 2020-2069. New findings presented here insightful other regions.</p>

Language: Английский

A Novel InSAR-Based Method for Retrieving Active Layer Thickness: Emphasizing Soil Pore Ratio and Unfrozen Water Content

Advances in Space Research, Journal Year: 2025, Volume and Issue: unknown

Published: March 1, 2025

Language: Английский

SFD-YOLO: A novel framework for subsidence funnels detection in China based on large-scale SAR interferograms

International Journal of Applied Earth Observation and Geoinformation, Journal Year: 2025, Volume and Issue: 140, P. 104605 - 104605

Published: May 19, 2025

Language: Английский