Centre dedocumentation
scientifique

An improved temporal mixture analysis unmixing method for estimating impervious surface area based on MODIS and DMSP-OLS data / Li Zhuo in ISPRS Journal of photogrammetry and remote sensing, vol 142 (August 2018)  

Public [article]  inISPRS Journal of photogrammetry and remote sensing > vol 142 (August 2018) . - pp 64 - 77 Titre : An improved temporal mixture analysis unmixing method for estimating impervious surface area based on MODIS and DMSP-OLS data Type de document : Article/Communication Auteurs : Li Zhuo, Auteur ; Qingli Shi, Auteur ; Haiyan Tao, Auteur ; Jing Zheng, Auteur ; Qiuping Li, Auteur Année de publication : 2018 Article en page(s) : pp 64 - 77 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image optique [Termes descripteurs IGN] analyse des mélanges temporels [Termes descripteurs IGN] détection de changement [Termes descripteurs IGN] Enhanced vegetation index [Termes descripteurs IGN] factorisation de matrice non-négative [Termes descripteurs IGN] Fleuve bleu (Chine) [Termes descripteurs IGN] image DMSP-OLS [Termes descripteurs IGN] image Terra-MODIS [Termes descripteurs IGN] Kouangtoung (Chine) [Termes descripteurs IGN] Normalized Difference Vegetation Index [Termes descripteurs IGN] surface imperméable Résumé : (Auteur) Impervious surface area (ISA) is an important indicator for monitoring the intensity of human activity and ecological environment changes. Developing effective methods for estimation of ISA at different scales has thus been pursued by many scientists. The temporal mixture analysis (TMA), which is a variant of spectral mixture analysis that makes full use of the phenological information of different land cover types, is suitable for estimating the ISA fraction at a large scale. The existing TMA-based ISA fraction estimation methods rely on the assumption that pure pixels exist for all the endmembers, which, however, is not true in the case of coarse-resolution datasets. Moreover, the existing method cannot effectively differentiate bare soil from ISA effectively, which may lead to overestimation of the ISA fraction. To address these problems, we propose a new ISA estimation method based on TMA in this study, using a Moderate Resolution Imaging Spectroradiometer (MODIS) normalized difference vegetation index (NDVI) and enhanced vegetation index (EVI) products, the GlobeLand30 product, and the Defense Meteorological Satellite Program-Operational Linescan System (DMSP-OLS) data. The proposed method contains four major steps. First, the MODIS NDVI time-series datasets and GlobeLand30 land cover product were used to create an NDVI temporal profile subset for the TMA model. Second, a preliminary ISA fraction map was derived on the basis of optimized endmember temporal profiles, which were generated by unmixing the selected NDVI temporal profile subset through an improved spatial-spectral preprocessing nonnegative matrix factorization algorithm (ISSPP-NMF). Then, the preliminary ISA fraction was further optimized by incorporating the EVI-adjusted night-time light index (EANTLI), which can mitigate both saturation problems and the blooming effect of the DMSP-OLS data. An effective threshold method was introduced in this step to reduce the impact of bare soil on the ISA estimation. Finally, the estimated fraction of ISA was evaluated through accuracy assessment. The proposed method was tested in two study areas, namely, Guangdong Province and the Yangtze River Delta (YRD) of China, to prove its applicability in different regions. Effectiveness of the proposed method was proven through the comparison between the proposed method with traditional TMA-based methods. The results from these analyses indicate that the proposed method outperforms the others in ISA estimation, with an overall root mean square error (RMSE) of 9.2% and a coefficient of determination (R2) of 0.8872 in Guangdong and a RMSE of 8.9% and R2 of 0.8923 in YRD. This study also proves that the ISSPP-NMF method can produce more appropriate endmembers regardless of the existence of pure pixels. The post-processing with the EANLTI procedure can effectively reduce the bare soil effect in TMA-based ISA estimation. Numéro de notice : A2018-292 Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.isprsjprs.2018.05.016 date de publication en ligne : 05/06/2018 En ligne : https://doi.org/10.1016/j.isprsjprs.2018.05.016 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=90409 [article]

Réservation

Réserver ce document

Exemplaires (3)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
081-2018081	RAB	Revue	Centre de documentation	En réserve 3L	Disponible
081-2018083	DEP-EXM	Revue	MATIS	Dépôt en unité	Exclu du prêt
081-2018082	DEP-EAF	Revue	Nancy	Dépôt en unité	Exclu du prêt

From hierarchy to networking: the evolution of the “twenty-first-century Maritime Silk Road” container shipping system / Liehui Wang in Transport reviews, vol 38 n° 4 ([01/07/2018])  

Public [article]  inTransport reviews > vol 38 n° 4 [01/07/2018] Titre : From hierarchy to networking: the evolution of the “twenty-first-century Maritime Silk Road” container shipping system Type de document : Article/Communication Auteurs : Liehui Wang, Auteur ; Yan Zhu, Auteur ; César Ducruet, Auteur ; Mattia Bunel , Auteur ; Yui-yip Lau, Auteur Année de publication : 2018 Projets : 1-Pas de projet / Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Termes descripteurs IGN] Chine [Termes descripteurs IGN] delta de la rivière des perles [Termes descripteurs IGN] Fleuve bleu (Chine) [Termes descripteurs IGN] port [Termes descripteurs IGN] Shanghai (Chine) [Termes descripteurs IGN] Shenzhen [Termes descripteurs IGN] théorie des graphes [Termes descripteurs IGN] trafic maritime [Termes descripteurs IGN] transport maritime [Vedettes matières IGN] Géovisualisation Résumé : (auteur) Container shipping gives a rise of international trade since the 1960s. Based on navigation data start from the mid-1990s to 2016, this paper empirically analyses the spatial pattern of China’s international maritime linkages along the “twenty-first-century Maritime Silk Road”. We interpret such evolutionary dynamics in terms of growth, hierarchical diffusion and networking phases. Networking is a new stage of the evolution of the port system, which is approached based on the graph theory, complex network methods and geomatics, the paper discusses the networking’s basic characteristics: multi-hub spatial agglomeration, the connection of the network develops across space, functional differentiation and a division of labour appear among ports. Our results show that, while the scope of China’s maritime linkages had expanded overtime, more foreign ports become connected to the “Maritime Silk Road”. In addition, the external linkages of domestic ports tend to be dispersed, reflecting upon the decline of Pearl River Delta ports and the rise of Yangtze River Delta ports, with mixed evidence for the Bohai Rim region. Lastly, the analysis underlines the emergence of a polycentric shipping system, from the Hong Kong dominance to the more diversified Shanghai/Ningbo/Shenzhen configuration. Academic and managerial implications are included. Numéro de notice : A2018-660 Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/01441647.2018.1441923 date de publication en ligne : 25/02/2018 En ligne : https://doi.org/10.1080/01441647.2018.1441923 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=93839 [article]

Geospatial web-based sensor information model for integrating satellite observation: An example in the field of flood disaster management / Chuli Hu in Photogrammetric Engineering & Remote Sensing, PERS, vol 79 n° 10 (October 2013)  

Public [article]  inPhotogrammetric Engineering & Remote Sensing, PERS > vol 79 n° 10 (October 2013) . - pp 915 - 927 Titre : Geospatial web-based sensor information model for integrating satellite observation: An example in the field of flood disaster management Type de document : Article/Communication Auteurs : Chuli Hu, Auteur ; Nengcheng Cheng, Auteur ; Jia Li, Auteur Année de publication : 2013 Article en page(s) : pp 915 - 927 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique web [Termes descripteurs IGN] capteur spatial [Termes descripteurs IGN] Chine [Termes descripteurs IGN] exploitation par le web de réseaux de capteurs [Termes descripteurs IGN] Fleuve bleu (Chine) [Termes descripteurs IGN] gestion des risques [Termes descripteurs IGN] image satellite [Termes descripteurs IGN] inondation [Termes descripteurs IGN] intégration de données [Termes descripteurs IGN] modèle conceptuel de données Résumé : (Auteur) Flood observation-supporting satellite sensors (FO-SSs) are the important geospatial resources to flood disaster management. In the geospatial sensor Web environment, effective flood disaster management requires on-demand integration of instant observation information from the diverse web-ready FO-SSs. We propose a sharable and interoperable Earth Observation Satellite Sensor Information (ssi) model for satellite observations integration. The SSI model reuses and extends the existing metadata standards to be a standard metadata-filled description framework. The SensorModel prototype serving here is to apply the SSI model into FO-SSs, retrieve and visualize the qualified Web-ready FO-SSs. An experiment on the flood emergency in the middle reaches of Yangtze River basin in China is conducted. The results show that, three kinds of users including FO-SSs providers, common emergency responders, and emergency managers can benefit from the proposed FO-SSI model, and the managers can reliably and comprehensively integrate the satisfied Web-ready FO-SSs to guide the scheduling of the required observation activities. Numéro de notice : A2013-566 Thématique : GEOMATIQUE Nature : Article DOI : 10.14358/PERS.79.10.905 En ligne : https://doi.org/10.14358/PERS.79.10.905 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=32702 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
105-2013101	RAB	Revue	Centre de documentation	En réserve 3L	Disponible

Land use and land cover change detection using satellite remote sensing techniques in the mountainous Three Gorges Area, China / Z. Chen in International Journal of Remote Sensing IJRS, vol 31 n° 6 (March 2010)

Public [article]  inInternational Journal of Remote Sensing IJRS > vol 31 n° 6 (March 2010) . - pp 1519 - 1542 Titre : Land use and land cover change detection using satellite remote sensing techniques in the mountainous Three Gorges Area, China Type de document : Article/Communication Auteurs : Z. Chen, Auteur ; Jing Wang, Auteur Année de publication : 2010 Article en page(s) : pp 1519 - 1542 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection [Termes descripteurs IGN] analyse diachronique [Termes descripteurs IGN] détection de changement [Termes descripteurs IGN] image multitemporelle [Termes descripteurs IGN] image optique [Termes descripteurs IGN] image satellite [Termes descripteurs IGN] impact sur l'environnement [Termes descripteurs IGN] occupation du sol [Termes descripteurs IGN] traitement d'image [Termes descripteurs IGN] TROIS GORGES [Termes descripteurs IGN] utilisation du sol Résumé : (Auteur) The Three Gorges Area (TGA), along the Yangtze River, China has been experiencing drastic land use and land cover (LU/LC) changes since the commencement of the construction of the Three Gorges Dam in 1994. These changes may have environmental impacts. However, information about the changes is limited and difficult to obtain. In this paper, optical satellite imagery is used to detect LU/LC changes during the study period 1987-2006 for the complicated, high-relief environment. A case study was conducted in Zigui County of Hubei Province within the TGA. A site-specific procedure using a decision rule-based classification method and a post classification change detection technique is developed to combine spectral and spatial knowledge in the classification of multi-temporal images. Using the decision rule-based classification method, overall accuracies of LU/LC maps of seven classes between 73.4% and 89.5% were obtained, increased by 4-5% over that using the traditional method. The results show that the main trend in LU/LC change in the study area throughout the monitoring period was a steady reduction in natural vegetation areas. About 32% of the total area of natural vegetation, including forest, shrub and grass, was lost to built up areas, crop fields and orchards. Copyright Taylor & Francis Numéro de notice : A2010-254 Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30448 [article]

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
080-2010041	SL	Revue	Centre de documentation	Revues en salle	Exclu du prêt

A scheme for ship detection in inhomogeneous regions based on segmentation of SAR images / F. Zhang in International Journal of Remote Sensing IJRS, vol 29 n°19-20 (October 2008)

Public [article]  inInternational Journal of Remote Sensing IJRS > vol 29 n°19-20 (October 2008) . - pp 5733 - 5747 Titre : A scheme for ship detection in inhomogeneous regions based on segmentation of SAR images Type de document : Article/Communication Auteurs : F. Zhang, Auteur ; B. Wu, Auteur Année de publication : 2008 Article en page(s) : pp 5733 - 5747 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image radar et applications [Termes descripteurs IGN] détection d'objet [Termes descripteurs IGN] estuaire [Termes descripteurs IGN] Fleuve bleu (Chine) [Termes descripteurs IGN] image Envisat-ASAR [Termes descripteurs IGN] image radar [Termes descripteurs IGN] navire [Termes descripteurs IGN] objet mobile [Termes descripteurs IGN] segmentation d'image Résumé : (Auteur) Ship detection in inhomogeneous regions using synthetic aperture radar (SAR) imagery is usually confronted with the severe heterogeneities of the oceans; this paper proposes a new detection scheme to overcome this problem. At first, an object-oriented segmentation algorithm is employed to partition the whole SAR image into several uniform regions. Then, for each partitioned region within water areas, the Kolmogorov-Smirnov test is applied to select the optimal background distribution model, and ship detection is carried out using the adaptive constant false alarm rate (CFAR) detector based on the selected probability density function. Finally, the detection results of each region are merged. An experiment based on an ENVISAT ASAR image of the Yangtze estuary show that the proposed strategy can effectively deal with heterogeneous scenarios in inhomogenous regions and greatly improves the detection results. Copyright Taylor & Francis Numéro de notice : A2008-531 Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=29601 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
080-08121	RAB	Revue	Centre de documentation	En réserve 3L	Disponible

Suspended sediment concentrations in the Yangtze River estuary retrieved from the CMODIS data / Z. Han in International Journal of Remote Sensing IJRS, vol 27 n°18 - 19 - 20 (October 2006)

Permalink

Landslide monitoring in the Three Gorges area using D-InSAR and corner reflectors / Y. Xia in Photogrammetric Engineering & Remote Sensing, PERS, vol 70 n° 10 (October 2004)

Permalink

Application des techniques de traitement d'images satellitaires à la surveillance de la région des Trois Gorges (Chine) / Tongying Guo (2001)

Permalink

Analyse et modélisation de mouvements de versant déclenchés par le plan d'eau d'une retenue de barrage / Y. Cai (2000)

Permalink

Détection et surveillance de l'environnement géologique de la région du réservoir du projet des Trois Gorges par télédétection / A. Su (2000)

Permalink

Traitement d'images satellitaires et extraction d'informations du MNT / P. Zheng (2000)

Permalink

Le barrage des trois gorges (Chine) / L. Merchez in Mappemonde, vol 1999 n° 3 tome 55 (septembre 1999)  

Permalink

Digital processing and information extraction of the remote sensing images in the Yangtze Three Gorges project region, China / W. Yang (1999)

Permalink

Geology and geomechanics of the three gorges projects / C. Zhengquan (1999)

Permalink

Photo interprétation d'images SPOT de la région des Trois Gorges dans un but de cartographie géologique (région de Wanxian-Yunyang, Chine) / J. Zhang (1998)

Permalink