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Cellular automata based land-use change simulation considering spatio-temporal influence heterogeneity of light rail transit construction: A case in Nanjing, China / Jiaming Na in ISPRS International journal of geo-information, vol 10 n° 5 (May 2021)  

Public [article]  inISPRS International journal of geo-information > vol 10 n° 5 (May 2021) . - n° 308 Titre : Cellular automata based land-use change simulation considering spatio-temporal influence heterogeneity of light rail transit construction: A case in Nanjing, China Type de document : Article/Communication Auteurs : Jiaming Na, Auteur ; Jie Zhu, Auteur ; Jiazhu Zheng, Auteur ; et al., Auteur Année de publication : 2021 Article en page(s) : n° 308 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Analyse spatiale [Termes IGN] automate cellulaire [Termes IGN] changement d'utilisation du sol [Termes IGN] données spatiotemporelles [Termes IGN] hétérogénéité spatiale [Termes IGN] modèle de simulation [Termes IGN] Nankin (Kiangsou) [Termes IGN] réseau ferroviaire [Termes IGN] train [Termes IGN] transport ferroviaire [Termes IGN] transport public Résumé : (auteur) Light rail transit (LRT), an essential urban public transport system in China, significantly reshaped the urban land-use (LU) pattern. Although the LRT impact and land-use change (LUC) analysis plays an essential role in urban planning policy, the spatiotemporal heterogeneity of LRT impacts have not been considered in LUC simulation studies. This study simulates the urban LU change, considering the spatiotemporal heterogeneity of LRT construction impacts on urban LUC. LUC from 1995 to 2005 in Nanjing, China, is chosen as a case study. At first, the distance decay function is employed to verify the quantitative impact of LRT construction on LU change. Accordingly, the variation trends of each LU type during different stages are described in time and space. A cellular automata model incorporated by the generated LRT impact is established and then implemented for simulation. According to model performance assessment results, the proposed model can produce a realistic urban pattern with Freedom of Movement (FoM) exceeding 24% and a significantly lower relative error than the CA simulation without considering LRT influence. Numéro de notice : A2021-390 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 0.3390/ijgi10050308 Date de publication en ligne : 06/05/2020 En ligne : https://doi.org/10.3390/ijgi10050308 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=97675 [article]

Roles of horizontal and vertical tree canopy structure in mitigating daytime and nighttime urban heat island effects / Jike Chen in International journal of applied Earth observation and geoinformation, vol 89 (July 2020)  

Public [article]  inInternational journal of applied Earth observation and geoinformation > vol 89 (July 2020) . - n° 102060 Titre : Roles of horizontal and vertical tree canopy structure in mitigating daytime and nighttime urban heat island effects Type de document : Article/Communication Auteurs : Jike Chen, Auteur ; Shuanggen Jin, Auteur ; Peijun Du, Auteur Année de publication : 2020 Article en page(s) : n° 102060 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications photogrammétriques [Termes IGN] arbre urbain [Termes IGN] canopée [Termes IGN] carte de la végétation [Termes IGN] couvert forestier [Termes IGN] données lidar [Termes IGN] ilot thermique urbain [Termes IGN] modèle numérique de terrain [Termes IGN] Nankin (Kiangsou) [Termes IGN] occupation du sol [Termes IGN] régression linéaire [Termes IGN] semis de points [Termes IGN] température au sol Résumé : (auteur) The urban heat island (UHI) is increasingly recognized as a serious, worldwide problem because of urbanization and climate change. Urban vegetation is capable of alleviating UHI and improving urban environment by shading together with evapotranspiration. While the impacts of abundance and spatial configuration of vegetation on land surface temperature (LST) have been widely examined, very little attention has been paid to the role of vertical structure of vegetation in regulating LST. In this study, we investigated the relationships between horizontal/vertical structure characteristics of urban tree canopy and LST as well as diurnal divergence in Nanjing City, China, with the help of high resolution vegetation map, Light Detection and Ranging (LiDAR) data and various statistical analysis methods. The results indicated that composition, configuration and vertical structure of tree canopy were all significantly related to both daytime LST and nighttime LST. Tree canopy showed stronger influence on LST during the day than at night. Note that the contribution of composition of tree canopy to explaining spatial heterogeneity of LST, regardless of day and night, was the highest, followed by vertical structure and configuration. Combining composition, configuration and vertical structure of tree canopy can take advantage of their respective advantages, and best explain variation in both daytime LST and nighttime LST. As for the independent importance of factors affecting spatial variation of LST, percent cover of tree canopy (PLAND), mean tree canopy height (TH_Mean), amplitude of tree canopy height (TA) and patch cohesion index (COHESION) were the most influential during the day, while the most important variables were PLAND, maximum height of tree canopy (TH_Max), variance of tree canopy height (TH_SD) and COHESION at night. This research extends our understanding of the impacts of urban trees on the UHI effect from the horizontal to three-dimensional space. In addition, it may offer sustainable and effective strategies for urban designers and planners to cope with increasing temperature. Numéro de notice : A2020-715 Affiliation des auteurs : non IGN Thématique : FORET/IMAGERIE Nature : Article DOI : 10.1016/j.jag.2020.102060 Date de publication en ligne : 25/02/2020 En ligne : https://doi.org/10.1016/j.jag.2020.102060 Format de la ressource électronique : url article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=96285 [article]

Geographic Knowledge Graph (GeoKG): A formalized geographic knowledge representation / Shu Wang in ISPRS International journal of geo-information, vol 8 n° 4 (April 2019)  

Public [article]  inISPRS International journal of geo-information > vol 8 n° 4 (April 2019) . - n° 184 Titre : Geographic Knowledge Graph (GeoKG): A formalized geographic knowledge representation Type de document : Article/Communication Auteurs : Shu Wang, Auteur ; Xueying Zhang, Auteur ; Peng Ye, Auteur ; Mi Du, Auteur ; et al., Auteur Année de publication : 2019 Article en page(s) : n° 184 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Langages informatiques [Termes IGN] formalisation [Termes IGN] langage de programmation [Termes IGN] Nankin (Kiangsou) [Termes IGN] représentation des connaissances [Termes IGN] réseau sémantique Résumé : (auteur) Formalized knowledge representation is the foundation of Big Data computing, mining and visualization. Current knowledge representations regard information as items linked to relevant objects or concepts by tree or graph structures. However, geographic knowledge differs from general knowledge, which is more focused on temporal, spatial, and changing knowledge. Thus, discrete knowledge items are difficult to represent geographic states, evolutions, and mechanisms, e.g., the processes of a storm “{9:30-60 mm-precipitation}-{12:00-80 mm-precipitation}-…”. The underlying problem is the constructors of the logic foundation (ALC description language) of current geographic knowledge representations, which cannot provide these descriptions. To address this issue, this study designed a formalized geographic knowledge representation called GeoKG and supplemented the constructors of the ALC description language. Then, an evolution case of administrative divisions of Nanjing was represented with the GeoKG. In order to evaluate the capabilities of our formalized model, two knowledge graphs were constructed by using the GeoKG and the YAGO by using the administrative division case. Then, a set of geographic questions were defined and translated into queries. The query results have shown that GeoKG results are more accurate and complete than the YAGO’s with the enhancing state information. Additionally, the user evaluation verified these improvements, which indicates it is a promising powerful model for geographic knowledge representation. Numéro de notice : A2019-671 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/INFORMATIQUE Nature : Article DOI : 10.3390/ijgi8040184 Date de publication en ligne : 08/04/2019 En ligne : https://doi.org/10.3390/ijgi8040184 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=100286 [article]

Generation of a consistent spatial data base for a land use planning project in south eastern China (SILUP) / Dieter Fritsch in GIS Geo-Informations-Systeme, vol 2002 n° 3 (März2002)

Public [article]  inGIS Geo-Informations-Systeme > vol 2002 n° 3 (März2002) . - pp 12 - 20 Titre : Generation of a consistent spatial data base for a land use planning project in south eastern China (SILUP) Type de document : Article/Communication Auteurs : Dieter Fritsch, Auteur Année de publication : 2002 Article en page(s) : pp 12 - 20 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications SIG [Termes IGN] aménagement du territoire [Termes IGN] base de données localisées [Termes IGN] carte d'occupation du sol [Termes IGN] développement durable [Termes IGN] flore locale [Termes IGN] géoréférencement [Termes IGN] image SPOT [Termes IGN] modèle numérique de surface [Termes IGN] Nankin (Kiangsou) [Termes IGN] surface cultivée [Termes IGN] utilisation du sol Résumé : (Auteur) The joint German-Chinese research project SILUP (Sustainable Integrated Land Use Planning) aims in developing and implementing a strategy for sustainable land use planning in a rapidly developing study area south of Nanjing, Jiangsu province, China. Sustainable development in this context means simultaneously respecting the ecological and socio-economical value of land, judging it and finding the best suited areas to fulfil the demands. The output of the SILUP system is a categorized map which shows land use planners, where agriculturally used areas can be a target for further development. Numéro de notice : A2002-353 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=22264 [article]

Exemplaires(1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
058-02031	RAB	Revue	Centre de documentation	En réserve L003	Disponible

Evolutions urbaines d'après des données diachroniques Landsat 3 / Sylvie Rimbert (1985)

Public Titre : Evolutions urbaines d'après des données diachroniques Landsat 3 : action thématique programmée, télédétection spatiale 1983 Type de document : Monographie Auteurs : Sylvie Rimbert, Auteur ; Centre national d'études spatiales, Auteur ; Centre national de la recherche scientifique, Auteur ; et al., Auteur Editeur : Strasbourg : Groupement Scientifique Télédétection Spatiale GSTS de Strasbourg Année de publication : 1985 Importance : 27 p. Format : 21 x 30 cm Langues : Français (fre) Descripteur : [Vedettes matières IGN] Applications de télédétection [Termes IGN] analyse diachronique [Termes IGN] analyse en composantes principales [Termes IGN] Athènes [Termes IGN] classification [Termes IGN] composition colorée [Termes IGN] détection de changement [Termes IGN] image en couleur composée [Termes IGN] image Landsat-MSS [Termes IGN] image multitemporelle [Termes IGN] milieu urbain [Termes IGN] Nankin (Kiangsou) [Termes IGN] photométrie [Termes IGN] Strasbourg [Termes IGN] texture d'image [Termes IGN] ville Numéro de notice : 55827 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Monographie Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=59923

Exemplaires(1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
55827-01	35.46	Livre	Centre de documentation	Télédétection	Disponible

Evolutions urbaines d'après des données diachroniques Landsat 3 (Strasbourg, Athènes, Nanjing) / Sylvie Rimbert (1984)

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