Results 81 to 90 of about 15,888 (248)
ABSTRACT Research in geocryology is currently principally concerned with the effects of climate change on permafrost terrain. The motivations for most of the research are (1) quantification of the anticipated net emissions of CO2 and CH4 from warming and thaw of near‐surface permafrost and (2) mitigation of effects on infrastructure of such warming and
Christopher R. Burn+29 more
wiley +1 more source
Causality-informed Rapid Post-hurricane Building Damage Detection in Large Scale from InSAR Imagery [PDF]
Timely and accurate assessment of hurricane-induced building damage is crucial for effective post-hurricane response and recovery efforts. Recently, remote sensing technologies provide large-scale optical or Interferometric Synthetic Aperture Radar (InSAR) imagery data immediately after a disastrous event, which can be readily used to conduct rapid ...
arxiv
Probabilistic, Multi‐Sensor Eruption Forecasting
Abstract We developed an eruption forecasting model using data from multiple sensors or data streams with the Bayesian network method. The model generates probabilistic forecasts that are interpretable and resilient against sensor outage. We applied the model at Whakaari/White Island, an andesite island volcano off the coast of New Zealand, using ...
Y. Behr, A. Christophersen, C. Miller
wiley +1 more source
In Situ Observations of the Thermal Strain Coefficient of Sea Ice
Abstract We conduct observations of sea ice thermal strain using a laser theodolite in situ (0.3–1 km distances) and InSAR remote sensing (1–22 km). We capture the thermal strain relationship of sea ice at geophysical scales never before measured.
L. Kaidel+4 more
wiley +1 more source
This work focuses on the study of land subsidence processes by means of multi-temporal and multi-frequency InSAR techniques. Specifically, we retrieve the long-term evolution (2003−2018) of the creeping phenomenon producing ground fissuring in the ...
Federica Murgia+4 more
doaj +1 more source
Application and Evaluation of the Gaofen-3 Satellite on a Terrain Survey with InSAR Technology
The Gaofen-3 satellite is the first SAR satellite independently developed in China that achieves interferometric imaging and measurement, which improves upon Chinese civil SAR satellite data.
Yuzhi Zheng, Zhenwei Chen, Guo Zhang
doaj +1 more source
Conceptual Study and Performance Analysis of Tandem Dual-Antenna Spaceborne SAR Interferometry [PDF]
Multi-baseline synthetic aperture radar interferometry (MB-InSAR), capable of mapping 3D surface model with high precision, is able to overcome the ill-posed problem in the single-baseline InSAR by use of the baseline diversity. Single pass MB acquisition with the advantages of high coherence and simple phase components has a more practical capability ...
arxiv
Abstract Glacier flow is typically modeled using a power‐law rheology known as the Glen–Nye flow law, with the power n $n$ assumed to be 3. However, recent research and past observations suggest that n=4 $n=4$ may better represent ice flow in some locations.
Benjamin Getraer, Mathieu Morlighem
wiley +1 more source
Risk assessment for areas prone to flooding and subsidence: a case study from Bergen, Western Norway
Bergen city centre is prone to both subsidence and flooding. With a predicted increase in precipitation due to climate change, a higher proportion of rainfall becomes surface runoff, which results in increased peak flood discharges.
Guri Venvik+2 more
doaj +1 more source
AbstractIn this paper, taking the ENVISAT satellite SAR images in Bam city as an example, the authors construct Digital Elevation Model (DEM) with InSAR technology, and by comparing the InSAR DEM with SRTM-3 DEM they also research the relationship between InSAR DEM's precision and terrain factors represented by slope and aspect.
Weihong Wang, Wenjun Zhang, Luwan Chen
openaire +2 more sources