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Atlas of remote sensing of the Wenchuan earthquake / Huadong Guo (2019)  

Public Titre : Atlas of remote sensing of the Wenchuan earthquake : Cas- Project Team of Remote Sensing for Wenchuan Earthquake Type de document : Monographie Auteurs : Huadong Guo, Auteur Editeur : Boca Raton, New York, ... : CRC Press Année de publication : 2019 Importance : 259 p. Format : 26 x 28 cm ISBN/ISSN/EAN : 978-1-4398-1674-5 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection [Termes descripteurs IGN] analyse du paysage [Termes descripteurs IGN] carte géologique [Termes descripteurs IGN] détection de changement [Termes descripteurs IGN] dommage matériel [Termes descripteurs IGN] image optique [Termes descripteurs IGN] image radar [Termes descripteurs IGN] image Radarsat [Termes descripteurs IGN] image satellite [Termes descripteurs IGN] impact sur l'environnement [Termes descripteurs IGN] réseau routier [Termes descripteurs IGN] séisme [Termes descripteurs IGN] Setchouan (Chine) [Termes descripteurs IGN] zone urbaine Résumé : (éditeur) In May 12, 2008, the Wenchuan County earthquake caused devastating loss of human life and property. Applying all the remote sensing technology available, the Chinese Academy of Sciences immediately launched into action, making full use of its state-of-the-art facilities, remote sensing planes, and satellites to amass invaluable optical and radar data. This unprecedented use of comprehensive remote sensing techniques provided accurate, up to the minute information for disaster management and has left us with a visually stunning and beautiful record that is as much a scientific achievement as it is an artistic one. Based on the accumulated data and images collected by the Project Team of Remote Sensing Monitoring and Assessment of the Wenchuan Earthquake, Atlas of Remote Sensing of the Wenchuan Earthquake documents the events as they happened in real time. The book covers the disaster from six aspects: geological, barrier lakes, collapsed buildings, damaged roads, destroyed farmland and forests, and demolished infrastructure. It also demonstrates that the Dujiangyan Irrigation Project, which has been standing for 2000 years, remains fully functioning, and keeps the Chengdu Plain operating optimally even after the earthquake. Translated into English for the first time, the Atlas presents a pictorial summation of this unique project. It chronicles the event with over 280 before and after color images from a range of perspectives. This volume dramatically demonstrates the value of remote sensing for understanding how an earthquake unfolds and the potential of remote sensing in helping coordinate emergency relief. A pictorial record of events as they unfolded, this book provides a systematic documentation of earthquake damage that can be used to prepare for future seismic events. Note de contenu : 1- Remote sensing data 2- Geological disaster 3- Barrier lakes 4- Collapsed buildings 5- Damaged roads 6- Destroyed farmlands and forests 7- Demolished infrastructure 8- Civilization perseveres Numéro de notice : 25917 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Monographie En ligne : https://library.oapen.org/handle/20.500.12657/40124 Format de la ressource électronique : URL Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=96100

Real-time high-precision earthquake monitoring using single-frequency GPS receivers / Min Li in GPS solutions, vol 19 n° 1 (January 2015)  

Public [article]  inGPS solutions > vol 19 n° 1 (January 2015) . - pp 27 - 35 Titre : Real-time high-precision earthquake monitoring using single-frequency GPS receivers Type de document : Article/Communication Auteurs : Min Li, Auteur ; Wenwen Li, Auteur ; Rongxin Fang, Auteur ; Chuang Shi, Auteur ; et al., Auteur Année de publication : 2015 Article en page(s) : pp 27 - 35 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de géodésie spatiale [Termes descripteurs IGN] récepteur monofréquence [Termes descripteurs IGN] séisme [Termes descripteurs IGN] Setchouan (Chine) [Termes descripteurs IGN] surveillance géologique [Termes descripteurs IGN] vitesse Résumé : (auteur) We present a new method for high-precision real-time earthquake monitoring that focuses on station velocity using single-frequency GPS receivers. By means of GPS absolute velocity determination (AVD), real-time station velocity of millimeter per second precision can be obtained epoch by epoch using the GPS broadcast ephemeris. While the monitoring stations are considered stationary during aseismic time, the coseismic displacement can be instantaneously recorded by the velocity changes. The 1-Hz GPS data at selected stations during the M w 8.0 Wenchuan earthquake, the M w 9.0 Tohoku-Oki earthquake and the M w 6.6 Lushan earthquake are processed with the AVD approach. The results indicate that the phase and amplitude of AVD-derived velocity time series induced by the earthquakes coincide with those derived from post-mission kinematic PPP approach. Even when coseismic displacements at some stations are occasionally not visible in the position time series, the velocity series can still clearly manifest the earthquake displacement signal. With the AVD approach, the precision and reliability of the real-time monitoring can be improved significantly. It is also indicated the velocity series can be used for fast post-earthquake assessment such as rapid determination of earthquake magnitude, locating epicenter, determining seismic wave propagation velocity and other earthquake studies. Numéro de notice : A2015-203 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article DOI : 10.1007/s10291-013-0362-4 date de publication en ligne : 09/01/2014 En ligne : https://doi.org/10.1007/s10291-013-0362-4 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=76016 [article]

Use of shadows for detection of earthquake-induced collapsed buildings in high-resolution satellite imagery / Xiaohua Tong in ISPRS Journal of photogrammetry and remote sensing, vol 79 (May 2013)

Public [article]  inISPRS Journal of photogrammetry and remote sensing > vol 79 (May 2013) . - pp 53 - 67 Titre : Use of shadows for detection of earthquake-induced collapsed buildings in high-resolution satellite imagery Type de document : Article/Communication Auteurs : Xiaohua Tong, Auteur ; Xiaofei Lin, Auteur ; Tiantian Feng, Auteur ; Huan Xie, Auteur ; et al., Auteur Année de publication : 2013 Article en page(s) : pp 53 - 67 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection [Termes descripteurs IGN] analyse comparative [Termes descripteurs IGN] bâtiment [Termes descripteurs IGN] cartographie des risques [Termes descripteurs IGN] détection d'ombre [Termes descripteurs IGN] dommage matériel [Termes descripteurs IGN] image à haute résolution [Termes descripteurs IGN] modèle 3D de l'espace urbain [Termes descripteurs IGN] ombre [Termes descripteurs IGN] risque naturel [Termes descripteurs IGN] séisme [Termes descripteurs IGN] Setchouan (Chine) [Termes descripteurs IGN] seuillage d'image Résumé : (Auteur) In this paper, we present a hybrid shadow-analysis approach that integrates the model- and property-based methods for detecting collapsed buildings after an earthquake using high-resolution satellite imagery. The framework of the proposed approach has four main steps. (1) The three-dimensional (3D) building model is established according to its footprint and height data stored in a geographical information system. (2) The theoretical shadow area of the building at the time that the post-seismic image was acquired is calculated. And the polygon of the ground shadow area of the building, which is called the theoretical ground shadow polygon, is extracted. (3) The theoretical ground shadow polygon is overlaid with the casting shadow area of the building, which is called the actual shadow area in the post-seismic satellite image, and the mean value of the digital number values of the post-seismic image pixels within the polygon of the theoretical shadow area is calculated. (4) The calculated mean value is compared with predefined thresholds, which are determined by the training pixels collected from the different types of shadows. On this basis, the shadows of totally collapsed, partially collapsed and uncollapsed buildings can be distinguished. A comprehensive experiment for Dujiangyan city, one of the urban areas most severely damaged in the May 2008 Wenchuan Earthquake, was conducted, and the experimental results showed the superiority of the proposed approach to the other existing ones. Numéro de notice : A2013-233 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=32371 [article]

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An adaptive method of non-stationary variogram modeling for DEM error surface simulation / Chuanfa Chen in Transactions in GIS, vol 16 n° 6 (December 2012)  

Public [article]  inTransactions in GIS > vol 16 n° 6 (December 2012) . - pp 885 - 899 Titre : An adaptive method of non-stationary variogram modeling for DEM error surface simulation Type de document : Article/Communication Auteurs : Chuanfa Chen, Auteur ; Yanyan Li, Auteur Année de publication : 2012 Article en page(s) : pp 885 - 899 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications photogrammétriques [Termes descripteurs IGN] diagramme de Voronoï [Termes descripteurs IGN] erreur [Termes descripteurs IGN] modèle numérique de terrain [Termes descripteurs IGN] Setchouan (Chine) [Termes descripteurs IGN] simulation de surface [Termes descripteurs IGN] variogramme Résumé : (Auteur) Geostatistical characterization of local DEM error is usually based on the assumption of a stationary variogram model which requires the mean and variance to be finite and constant in the area under investigation. However, in practice this assumption is appropriate only in a restricted spatial location, where the local experimental variograms vary slowly. Therefore, an adaptive method is developed in this article to model non-stationary variograms, for which the estimator and the indicator for characterization of spatial variation are a Voronoi map and the standard deviation of mean values displayed in the Voronoi map, respectively. For the adaptive method, the global domain is divided into different meshes with various sizes according to the variability of local variograms. The adaptive method of non-stationary variogram modeling is applied to simulating error surfaces of a LiDAR derived DEM located in Sichuan province, China. Results indicate that the locally adaptive variogram model is more accurate than the global one for capturing the characterization of spatial variation in DEM errors. The adaptive model can be considered as an alternative approach to modeling non-stationary variograms for DEM error surface simulation. Numéro de notice : A2012-619 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1111/j.1467-9671.2012.01326.x En ligne : https://doi.org/10.1111/j.1467-9671.2012.01326.x Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=32065 [article]

IconMap-based visualisation technique and its application in soil fertility analysis / X. Zhang in Cartographic journal (the), vol 49 n° 3 (August 2012)  

Public [article]  inCartographic journal (the) > vol 49 n° 3 (August 2012) . - pp 208 - 217 Titre : IconMap-based visualisation technique and its application in soil fertility analysis Type de document : Article/Communication Auteurs : X. Zhang, Auteur ; X. Wang, Auteur ; J. Li, Auteur ; M. Pazner, Auteur Année de publication : 2012 Article en page(s) : pp 208 - 217 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique [Termes descripteurs IGN] analyse multivariée [Termes descripteurs IGN] données localisées [Termes descripteurs IGN] données maillées [Termes descripteurs IGN] fertilité [Termes descripteurs IGN] Setchouan (Chine) [Termes descripteurs IGN] sol [Termes descripteurs IGN] visualisation de données Résumé : (Auteur) With the development of geographic information science and the progress in the research of scientific visualisation, the visualisation of multivariate geospatial data has attracted much attention. This paper discusses an IconMap-based visualisation technique that enables multiple geospatial variables be represented in a single raster layer. This is achieved by extending the conventional pixel-based image structure to the three-tiered iconic design. Thereby the spatial pattern generated by the interaction between multivariate geographic variables can be disclosed, and the goal of geospatial data mining is achieved. A visualisation case study on soil organic matter and nutrients for the Shuangliu County of Chengdu City, China, was performed using the proposed approach. The result shows that the static IconMap can better display the distribution tendency of the high-end and low-end soil organic matter and nutrients, and that the dynamic IconMap can both reflect the interaction between the organic matter and the nutrients variables, and display the soil fertility levels in a comprehensive way. Thus, the IconMap-based visualisation approach is a non-fused, exploratory analytical approach for multivariate data and valuable for visually analyse the soil fertility condition. Numéro de notice : A2012-536 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1179/1743277412Y.0000000016 date de publication en ligne : 22/11/2013 En ligne : https://doi.org/10.1179/1743277412Y.0000000016 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=31982 [article]

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Building-damage detection using pre- and post-seismic high-resolution satellite stereo imagery: A case study of the May 2008 Wenchuan earthquake / X. Tong in ISPRS Journal of photogrammetry and remote sensing, vol 68 (March 2012)

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3D-sutra-interactive analysis tool for a Web atlas of scanned sutra inscriptions in China / N. Schmidt in Photogrammetric record, vol 26 n° 136 (December 2011 - February 2012)  

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Adjustment computation of HASM : a high-accuracy and high speed method / T. Yue in International journal of geographical information science IJGIS, vol 24 n°11-12 (december 2010)  

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Context-based mapping of damaged buildings from high-resolution optical satellite images / T. Vu in International Journal of Remote Sensing IJRS, vol 31 n° 13 (July /2010)

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Damage consequence chain mapping after the Wenchuan Earthquake using remotely sensed data / H. Guo in International Journal of Remote Sensing IJRS, vol 31 n° 13 (July /2010)

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Multi-path PALSAR interferometric observations of the 2008 magnitude 8.0 Wenchuan earthquake / K. Zhang in International Journal of Remote Sensing IJRS, vol 31 n° 13 (July /2010)

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Studies of the electromagnetic field variations in ELF frequency range registred by DEMETER over the Sichuan region prior to the 12 mays 2008 earthquake / J. Blecki in International Journal of Remote Sensing IJRS, vol 31 n° 13 (July /2010)

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The Sichuan earthquake (3): satellite-based global flood response / F. Koudogbo in GIM international, vol 22 n° 12 (December 2008)

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The Sichuan earthquake (2) : space-borne SAR in earthquake response / Y. Shao in GIM international, vol 22 n° 11 (November 2008)

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The Sichuan earthquake (1): satellite imagery for rapid response / Timo Balz in GIM international, vol 22 n° 10 (October 2008)

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