1,721,030 research outputs found
Data for "Ground deformation with DInSAR on a global scale: opportunities and challenges". Preliminary retrievals of deformation rates based on 2017-2022 Sentinel-1 data computed with the MSBASX system.
No full textSupplementary information for the manuscript "Ground deformation with DInSAR on a global scale: opportunities and challenges" submitted to the International Journal of Applied Earth Observation and Geoinformation special issue Recent Advances in SAR/InSAR Techniques for Geohazard MonitoringPreliminary retrievals of deformation rates during 2017-2022 computed from Sentinel-1 data with the MSBASX systemPart I: Ascending, CanadaPart II: Descending, CanadaPart III: Ascending, ChinaPart IV: Descending, ChinaPart V: Ascending, RussiaPart VI: Descending, RussiaPart VII: Glaciers (from speckle offsets), CanadaPart VIII: Glaciers (from speckle offsets), RussiaFor additional information contact Sergey Samsonov at [email protected] or [email protected]
Modern creator in Sergey Samsonov\u27s novel The Kamlayev Anomaly
No full textВ статье рассматривается роман "Аномалия Камлаева" Сергея Самсонова. В центре внимания проблема творца и его творения. Автор максимально укрупняет понятие творчества, выводя его из сферы музыки в сферу самой жизни. Самсонов анализирует состояние человека 21 века и причины его духовного кризиса. Творчество Самсонова рассматривается в контексте нового реализма, сложившегося в русской литературе в конце 20 века. Творческий метод Самсонова также соотносится с дискуссионной концепцией метамодернизма.The article is devoted to the novel of Sergey Samsonov – The Kamlayev Anomaly. The focus is on the issue of a creative man and his creations. The author maximizes the notion of creative work, going beyond the limits of the sphere of music and bringing it to the sphere of life itself. Samsonov is trying to analyze the state of being of the 21st century human and the cause of human spiritual crisis. Samsonov\u27s writing is considered in the context of the new realism. Author\u27s creative method is also compared with the debatable concept of metamodermism
Data for: Satellite interferometry for regional assessment of landslide hazard to pipelines in northeastern British Columbia, Canada
No full textSupplementary information for the manuscript in the International Journal of Applied Earth Observation and Geoinformation "Satellite interferometry for regional assessment of landslide hazard to pipelines in northeastern British Columbia, Canada" by Sergey Samsonov and Andrée Blais-Stevens.Content:The RADARSAT-2-U15 and RADARSAT-2-U19 folders contain line-of-sight deformation rates, their standard deviations (1-sigma) and their coefficients of determinations (R2).The Sentinel-1 folder contains vertical and horizontal east deformation rates, their standard deviations (1-sigma) and their coefficients of determinations (R2).The hotspots folder contains the Z-score map for the entire region and the areas with absolute values of the Z-score greater than 20, plotted over the Sentinel-2 image. The dem folder contains dem figure that describes the area and data coverage.Refer to the manuscript for a detailed description of the data, processing methodology and results
Application of DInSAR-GPS optimization for derivation of fine-scale surface motion maps of Southern California
Get PDFA 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 synthetic aperture radar (DInSAR) interferogram in the southern California region. The minimization of the Gibbs energy function is performed analytically, which is possible in the case when neighboring pixels are considered independent. The problem is well posed and the solution is unique and stable and not biased by the continuity condition. The technique produces a 3-D field containing estimates of surface motion on the spatial scale of the DInSAR image, over a given time period, complete with error estimates. Significant improvement in the accuracy of the vertical component and moderate improvement in the accuracy of the horizontal components of velocity are achieved in comparison with the GPS data alone. The method can be expanded to account for other available data sets, such as additional interferograms, lidar, or leveling data, in order to achieve even higher accuracy
Ground deformation of the 2020 Elazig earthquake, 2023 Kahramanmaraş earthquake sequence and long-term deformations time series and rates, computed from Sentinel-1 and RADARSAT-2 Synthetic Aperture Radar data.
No full textDeformation products computed from Sentinel-1 and RADARSAT-2 Synthetic Aperture Radar data.I. Speckle range and azimuth offsets of the 6 February 2023 Kahramanmaraş, Türkiye earthquake sequence. - Sentinel-1_track014 - Sentinel-1_track021 - Sentinel-1_track123 - RADARSAT-2 - 2023_Kahramanmaras_Earthquakes_summary.pdfII. The 2017-2023 long-term line-of-sight deformation rates from Sentinel-1 data, computed with MSBAS-1D software. - Sentinel-1_MSBAS1D_track043_deformation_rate_only_20170606-20230130 - Sentinel-1_MSBAS1D_track123_deformation_rate_only_20170531-20230205 - Sentinel-1_MSBAS1D_track116_deformation_rate_only_20160604-20230204III. The 2017-2023 long-term two-dimensional deformation time series and rates from Sentinel-1 data, computed with MSBAS-2D software. - Sentinel-1_MSBAS2D_track043_track123_time_series_20170606-20230130 - 2017-2023_MSBAS2D_summary.pdf - note: -- several landslides -- co- and post-seismic fault motion -- fast subsidenceThe data consists of the following files:*.spo_range.geo.tif - raw range offsets measured in meters*.spo_snr.geo.tif - signal-to-noise ratio that can be used to remove noisy pixels*.spo_range.geo_SNR5_FILTER_MEDIAN3km.tif - post-processed range offsets measured in meters - The following post-processing filters provided in readme.txt files are applied: - pixels with SNR<5 (or 10) are removed - pixels with abs(range)>5 are removed - median filter with a 3km window is applied - different filtering parameters can be applied, if needed.Files produced with GAMMA look_vector command (measured in radians):*.lv_theta.geo.tif - SAR look vector elevation angle at each map pixel - lv_theta: PI/2 -> up -PI/2 -> down - The elevation angle is measured between the surface and the look vector pointing at the radar*.lv_phi.geo.tif - SAR look vector orientation angle at each map pixel - lv_phi: 0 -> East PI/2 -> North*qc - various information about processing options and baselines.For extracting 2D time series for individual pixels use msbas_extract command and MSBAS_TSOUT.txt file with timing information
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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