Results 41 to 50 of about 21,934 (233)
Robust multibaseline InSAR optimization [PDF]
2016 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2016 Multibaseline SAR interferometry may face unmodeled interferometric phase such as unmodeled motion phase and uncompensated atmospheric phase, as well as non-Gaussian statistics in the context of distributed scatterer. We developed the robust InSAR optimization (RIO) [1] framework to systematically tackle these issues.
Yuanyuan Wang 0002, Xiao Xiang Zhu 0001
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Characterizing and estimating noise in InSAR and InSAR time series with MODIS
Geochemistry, Geophysics, Geosystems, 2013 InSAR time series analysis is increasingly used to image subcentimeter displacement rates of the ground surface. The precision of InSAR observations is often affected by several noise sources, including spatially correlated noise from the turbulent atmosphere. Under ideal scenarios, InSAR time series techniques can substantially mitigate these effects;
William D. Barnhart, Rowena B. Lohman
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Dizhen xuebao, 2021 利用2014年10月至2019年9月期间欧空局Sentinel-1卫星采集的合成孔径雷达数据分析了2014年2月12日新疆于田MS7.3地震的震后形变场。结果表明，此次地震造成了南硝尔库勒断裂上明显的震后形变，首次从地震形变场的角度验证了此次地震的发震构造为NE向的左旋走滑断裂，而非部分研究所认为的近NS向断裂。由合成孔径雷达干涉测量得到的多年平均速率图显示主震的西侧仅出现了少量震后余滑且仍为强闭锁区，这意味着2008年和2014年于田两次MS7.3地震之间的区域仍存在发生强震的风险 ...
Yi Luo +3 more
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Deep Underground Science and Engineering, EarlyView.This work integrates 5 years of field data from the Aquistore CCS project with a non‐isothermal THM modeling framework to explain how cold CO2 injection alters injectivity over time. The study shows that sustained cooling near the wellbore reduces effective stresses, promotes tensile micro‑cracking, and leads to semi‑reversible permeability enhancement
Alireza Rangriz Shokri +3 more
wiley +1 more source
Journal of Education and Health PromotionBACKGROUND: Low levels of health literacy are related with riskier health behaviors and poorer health outcomes. Biological science contributes significantly to students’ health literacy, as many biology topics are directly related to health issues.
Insar Damopolii +2 more
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Integrating Grain to Ground Motion Data for Critical Rock Bridge and Slope Failure Analysis
International Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.ABSTRACT Rock masses can fail catastrophically with little warning, yet their stability depends on hidden internal connections that channel forces and localise damage. Among these, rock bridges–a “known unknown” in slope mechanics–lock fractured rock and control how failure unfolds, but their concealed geometry and uncertain strength obscure where and ...
Antoinette Tordesillas +5 more
wiley +1 more source
Modeled Subsidence of Permafrost Terrain 2025–2050: North‐Central Alaska
Permafrost and Periglacial Processes, EarlyView.ABSTRACT A large fraction of the Alaska terrain is underlain by regolith that contains excess ice (ice that in volume exceeds the natural pore space). Possible loss of excess ice would lead to ground subsidence, which in turn would disturb and destabilize the ground surface.
Jaakko Putkonen +8 more
wiley +1 more source
Shortcomings of InSAR for studying megathrust earthquakes: The case of the M w 9.0 Tohoku-Oki earthquake [PDF]
, 2012 Interferometric Synthetic Aperture Radar (InSAR) observations are sometimes the only geodetic data of large subduction-zone earthquakes. However, these data usually suffer from spatially long-wavelength orbital and atmospheric errors that can be ...
Feng, Guangcai, Jonsson, Sigurjon
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GIScience & Remote Sensing, 2017 The underground railway network of Beijing City, China, which is an important urban infrastructure, has burgeoned with the expansion of the city. However, the influence of subway construction and operation on local subsidence has received minimal ...
Wen-Feng Chen +5 more
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Internal Structure, Kinematics, and Prehistory of Frozen Debris Lobe‐A (FDL‐A), Brooks Range, Alaska
Permafrost and Periglacial Processes, EarlyView.ABSTRACT Frozen Debris Lobe‐A (FDL‐A)—one of hundreds of FDLs in the Brooks Range of northern Alaska—is a slow‐moving landslide in permafrost that has been the subject of research since 2008 due to its close proximity to the Dalton Highway. Here, we synthesize more than a decade's worth of climate and surface measurements of monitored FDLs, and the ...
Margaret M. Darrow +2 more
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