Results 81 to 90 of about 34,529 (231)
Application of DInSAR-GPS optimization for derivation of fine-scale surface motion maps of Southern California [PDF]
, 2007 A method based on random field theory and Gibbs-Markov random fields equivalency within Bayesian statistical framework is used to derive 3-D surface motion maps from sparse global positioning system (GPS) measurements and differential interferometric ...
Li, Z. +3 more
core +1 more source
Harnesing the InSAR Data Revolution: GMTSARHarnessing the InSAR data Revolution: GMTSAR
, 2020 GMTSAR is an open-source system for measuring land surface deformation from repeated synthetic aperture radar images.
openaire +1 more source
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.
Wang, Yuanyuan, Zhu, Xiao Xiang
openaire +3 more sources
Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.Abstract Large earthquakes can activate complex aftershock fault networks. In such systems, what controls the spatiotemporal evolution of early aftershocks remains a critical yet unresolved problem. Here, using the 2019 M 7.1 Ridgecrest earthquake as an example, we partition the first 10 days of aftershocks onto 15 branching faults activated by the ...
Yanlan Hu, Xin Cui, Zefeng Li
wiley +1 more source
Non-Local Compressive Sensing Based SAR Tomography [PDF]
, 2018 Tomographic SAR (TomoSAR) inversion of urban areas is an inherently sparse reconstruction problem and, hence, can be solved using compressive sensing (CS) algorithms.
Bamler, Richard +2 more
core +2 more sources
Rapid Land Surface Uplift and Groundwater Recovery Observed During the Syrian War
Geophysical Research Letters, Volume 53, Issue 7, 16 April 2026.Abstract Recent geopolitical upheaval in Syria is driving regional growth by returning populations, which increases demands on water resources. In northwest Syria, widespread cropland abandonment during the Syrian War starting in 2011 drastically changed the hydrological regime of the region.
Saeed Mhanna +5 more
wiley +1 more source
A Shape Optimization Approach for Inferring Sources of Volcano Ground Deformation
Geophysical Research Letters, Volume 53, Issue 7, 16 April 2026.Abstract One of the main goals of volcano geodesy is to improve the understanding of how an increase in pressure related to magma accumulation causes ground deformation in order to evaluate volcanic unrest. The inversion methods used for this purpose rely on a parametrization of the shape of the crustal volume in which pressure changes due to magma ...
Théo Perrot +2 more
wiley +1 more source
Evidence for postseismic deformation of the lower crust following the 2004 Mw6.0 Parkfield earthquake [PDF]
, 2011 Previous studies have shown that postseismic relaxation following the 2004 Mw6.0 Parkfield, CA, earthquake is dominated by afterslip. However, we show that some fraction of the afterslip inferred from kinematic inversion to have occurred immediately ...
Avouac, Jean-Philippe +2 more
core
Geophysical Research Letters, Volume 53, Issue 7, 16 April 2026.Abstract We present novel observations of C‐band Synthetic Aperture Radar (SAR) coherence sensitivities and patterns for snow on first‐year sea ice (FYI) consistent with snow thermodynamics and wind redistribution. Wintertime SAR coherence and backscatter change observations of landfast FYI in Dease Strait, Nunavut, Canada are made using 12‐day repeat ...
John Yackel +8 more
wiley +1 more source
2008年汶川地震震源区东北端局部形变区与青川MS6.4强余震关系
Dizhen xuebao, 2018 2008年汶川地震之后，通过InSAR观测到青川县木鱼镇附近存在一个长约为15 km、宽约为10 km、地表位移数十厘米的局部形变区。前人分析认为，该形变区是由MS6.4的青川强余震造成的，但拟合地表形变数据所采用的震源深度和震源机制解与地震学反演的结果具有较大差异。本文利用远震体波和瑞雷波振幅谱进一步测定了青川强余震的震源深度和震源机制解，计算了此次事件造成的地表位移场，认为青川强余震并非造成木鱼镇地区局部形变的直接原因，并讨论该局部形变区可能的成因。
Sidao Ni +4 more
doaj +1 more source