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Evaluating data stability in aggregation structures across spatial scales: revisiting the modifiable areal unit problem / Jonathan K. Nelson in Cartography and Geographic Information Science, Vol 44 n° 1 (January 2017)
[article]
Titre : Evaluating data stability in aggregation structures across spatial scales: revisiting the modifiable areal unit problem Type de document : Article/Communication Auteurs : Jonathan K. Nelson, Auteur ; Cynthia A. Brewer, Auteur Année de publication : 2017 Article en page(s) : pp 35 - 50 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Analyse spatiale
[Termes IGN] analyse diachronique
[Termes IGN] exploration de données géographiques
[Termes IGN] maladie non infectieuse
[Termes IGN] mise à l'échelle
[Termes IGN] Pennsylvanie (Etats-Unis)
[Termes IGN] problème d'unité zonale modifiable
[Termes IGN] regroupement de donnéesRésumé : (auteur) Socioeconomic and health analysts commonly rely on areally aggregated data, in part because government regulations on confidentiality prohibit data release at the individual level. Analytical results from areally aggregated data, however, are sensitive to the modifiable areal unit problem (MAUP). Levels of aggregation as well as the arbitrary and modifiable sizes, shapes, and arrangements of zones affect the validity and reliability of findings from analyses of areally aggregated data. MAUP, long acknowledged, remains unresolved. We present an exploratory spatial data analytical approach (ESDA) to understand the scalar effects of MAUP. To characterize relationships between data aggregation structures and spatial scales, we develop a method for statistically and visually exploring the local indicators of spatial association (LISA) exhibited between a variable and itself across varying levels of aggregation. We demonstrate our approach by analyzing the across-scale relationships of aggregated 2010 median income for the State of Pennsylvania and 2005–2009 cancer diagnosis rates for the State of New York between county–tract, tract–block group, and county–block group level US census designated enumeration units. This method for understanding the relationship between MAUP and spatial scale provides guidance to researchers in selecting the most appropriate scales to aggregate, analyze, and represent data for problem-specific analyses. Numéro de notice : A2017-100 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1080/15230406.2015.1093431 En ligne : https://doi.org/10.1080/15230406.2015.1093431 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=84479
in Cartography and Geographic Information Science > Vol 44 n° 1 (January 2017) . - pp 35 - 50[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 032-2017011 RAB Revue Centre de documentation En réserve L003 Disponible Faucon noir : retour d'expérience sur une étude de la biodiversité par drone / Laurent Beaudoin in Revue Française de Photogrammétrie et de Télédétection, n° 213 - 214 (janvier - avril 2017)
[article]
Titre : Faucon noir : retour d'expérience sur une étude de la biodiversité par drone Type de document : Article/Communication Auteurs : Laurent Beaudoin, Auteur ; Antoine Gademer, Auteur ; Loïca Avanthey, Auteur ; et al., Auteur Année de publication : 2017 Article en page(s) : pp 11 - 18 Note générale : Bibliographie Langues : Français (fre) Descripteur : [Vedettes matières IGN] Applications SIG
[Termes IGN] Aves
[Termes IGN] biodiversité
[Termes IGN] cartographie dynamique
[Termes IGN] données localisées 3D
[Termes IGN] drone
[Termes IGN] image aérienne
[Termes IGN] semis de points
[Termes IGN] télédétection aérienneRésumé : (auteur) L'étude de la biodiversité des écosystèmes et de leur dynamique est un enjeu majeur de notre siècle de transition climatique. Pour cela, il est nécessaire de réaliser un suivi précis de l'évolution des populations, basé sur une cartographie régulière et à haute résolution pour recueillir des informations à l'échelle des individus étudiés. Dans cet article, on s'intéresse au potentiel de la télédétection basse altitude utilisant un prototype de micro-drone avec une charge cartographique dédiée développés au laboratoire. Les retours d'expérience sur un site d'étude classé en zone Natura 2000 montrent un potentiel très utile pour les gestionnaires de la réserve, tant du point de vue de l'exploitation des données brutes que des nuages de points 3D générés à partir de celles-ci. Numéro de notice : A2017-045 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/IMAGERIE Nature : Article DOI : 10.52638/rfpt.2017.189 Date de publication en ligne : 26/04/2017 En ligne : https://doi.org/10.52638/rfpt.2017.189 Format de la ressource électronique : URL Article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=84223
in Revue Française de Photogrammétrie et de Télédétection > n° 213 - 214 (janvier - avril 2017) . - pp 11 - 18[article]Feasibility of Terrestrial laser scanning for collecting stem volume information from single trees / Ninni Saarinen in ISPRS Journal of photogrammetry and remote sensing, vol 123 (January 2017)
[article]
Titre : Feasibility of Terrestrial laser scanning for collecting stem volume information from single trees Type de document : Article/Communication Auteurs : Ninni Saarinen, Auteur ; Ville Kankare, Auteur ; Mikko Vastaranta, Auteur ; et al., Auteur Année de publication : 2017 Article en page(s) : pp 140 - 158 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Lasergrammétrie
[Termes IGN] allométrie
[Termes IGN] biomasse forestière
[Termes IGN] forêt boréale
[Termes IGN] modélisation
[Termes IGN] semis de points
[Termes IGN] télémétrie laser terrestre
[Termes IGN] tronc
[Termes IGN] volume en boisRésumé : (Auteur) Interest in measuring forest biomass and carbon stock has increased as a result of the United Nations Framework Convention on Climate Change, and sustainable planning of forest resources is therefore essential. Biomass and carbon stock estimates are based on the large area estimates of growing stock volume provided by national forest inventories (NFIs). The estimates for growing stock volume based on the NFIs depend on stem volume estimates of individual trees. Data collection for formulating stem volume and biomass models is challenging, because the amount of data required is considerable, and the fact that the detailed destructive measurements required to provide these data are laborious. Due to natural diversity, sample size for developing allometric models should be rather large. Terrestrial laser scanning (TLS) has proved to be an efficient tool for collecting information on tree stems. Therefore, we investigated how TLS data for deriving stem volume information from single trees should be collected. The broader context of the study was to determine the feasibility of replacing destructive and laborious field measurements, which have been needed for development of empirical stem volume models, with TLS. The aim of the study was to investigate the effect of the TLS data captured at various distance (i.e. corresponding 25%, 50%, 75% and 100% of tree height) on the accuracy of the stem volume derived. In addition, we examined how multiple TLS point cloud data acquired at various distances improved the results. Analysis was carried out with two ways when multiple point clouds were used: individual tree attributes were derived from separate point clouds and the volume was estimated based on these separate values (multiple-scan A), and point clouds were georeferenced as a combined point cloud from which the stem volume was estimated (multiple-scan B). This permitted us to deal with the practical aspects of TLS data collection and data processing for development of stem volume equations in boreal forests. The results indicated that a scanning distance of approximately 25% of tree height would be optimal for stem volume estimation with TLS if a single scan was utilized in boreal forest conditions studied here and scanning resolution employed. Larger distances increased the uncertainty, especially when the scanning distance was greater than approximately 50% of tree height, because the number of successfully measured diameters from the TLS point cloud was not sufficient for estimating the stem volume. When two TLS point clouds were utilized, the accuracy of stem volume estimates was improved: RMSE decreased from 12.4% to 6.8%. When two point clouds were processed separately (i.e. tree attributes were derived from separate point clouds and then combined) more accurate results were obtained; smaller RMSE and relative error were achieved compared to processing point clouds together (i.e. tree attributes were derived from a combined point cloud). TLS data collection and processing for the optimal setup in this study required only one sixth of time that was necessary to obtain the field reference. These results helped to further our knowledge on TLS in estimating stem volume in boreal forests studied here and brought us one step closer in providing best practices how a phase-shift TLS can be utilized in collecting data when developing stem volume models. Numéro de notice : A2017-011 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.isprsjprs.2016.11.012 En ligne : http://dx.doi.org/10.1016/j.isprsjprs.2016.11.012 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=83912
in ISPRS Journal of photogrammetry and remote sensing > vol 123 (January 2017) . - pp 140 - 158[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 081-2017011 RAB Revue Centre de documentation En réserve L003 Disponible 081-2017013 DEP-EXM Revue LASTIG Dépôt en unité Exclu du prêt 081-2017012 DEP-EAF Revue Nancy Dépôt en unité Exclu du prêt Forest inventory-based projection systems for wood and biomass availability, ch. France [National woody biomass projection systems based on forest inventory - Projecting wood resources and potential wood supply of French forests: an approach to cope with forest system diversity] / Antoine Colin (2017)
Titre de série : Forest inventory-based projection systems for wood and biomass availability, ch Titre : France [National woody biomass projection systems based on forest inventory - Projecting wood resources and potential wood supply of French forests: an approach to cope with forest system diversity] Type de document : Chapitre/Contribution Auteurs : Antoine Colin , Auteur ; Holger Wernsdörfer, Auteur ; Alain Thivolle-Cazat, Auteur ; Jean-Daniel Bontemps , Auteur Editeur : Berlin, Heidelberg, Vienne, New York, ... : Springer Année de publication : 2017 Collection : Managing forest ecosystems, ISSN 1568-1319 num. 29 Importance : pp 159 - 174 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] biomasse aérienne
[Termes IGN] inventaire forestier national (données France)
[Vedettes matières IGN] Inventaire forestierRésumé : (auteur) Forests cover approximately 30.8% (16.8 million ha in 2013) of the total land area of the French metropolitan territory. They show a high diversity resulting from environmental factors such as climate and habitats, tree species, stand structure and economic factors such as physical and environmental constraints on forest accessibility, ownership categories and associated management objectives. As a result of both afforestation and natural colonization, the French forest area has more than doubled since 1788. Intensive and systematic forest monitoring via the National Forest inventory (NFI) has been carried out over the metropolitan territory since the late 1950s, enabling continuous analysis of forest features and wood resources. For several decades, French forests have experienced an increasing gap between total drain and increment, and growing stock has increased by about 25 million m3 per year over a 25-year period, with no indication of a future change in this structural trend. Numéro de notice : H2017-015 Affiliation des auteurs : IGN+Ext (2012-2019) Autre URL associée : vers HAL Thématique : FORET Nature : Chapître / contribution nature-HAL : ChOuvrScient DOI : 10.1007/978-3-319-56201-8_13 En ligne : https://doi.org/10.1007/978-3-319-56201-8_13 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=89270 Forest Products Annual Market Review 2015-2016 / United Nations Economic Commission for Europe (2017)
Titre : Forest Products Annual Market Review 2015-2016 Titre original : Revue annuelle du marché des produits forestiers 2014-2015 Type de document : Rapport Auteurs : United Nations Economic Commission for Europe, Auteur ; Food and agriculture organization of the United Nations, Auteur Editeur : Genève [Suisse] : United Nations Economic Commission for Europe UNECE Année de publication : 2017 Collection : Geneva timber and forest study papers, ISSN 1020-2269 num. 40 Importance : 161 p. Format : 21 x 30 cm Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Economie européenne
[Termes IGN] bois
[Termes IGN] bois énergie
[Termes IGN] économie européenne
[Termes IGN] forêt
[Termes IGN] industrie forestière
[Termes IGN] marché
[Termes IGN] produit forestierIndex. décimale : 412.2 Exploitation forestière et produits forestiers Numéro de notice : 17379 Affiliation des auteurs : non IGN Thématique : FORET Nature : Rapport statistique En ligne : https://www.unece.org/fileadmin/DAM/timber/publications/fpamr2016.pdf Format de la ressource électronique : URL Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=84679 PermalinkHandbook on advances in remote sensing and geographic information systems / Margarita N. Favorskaya (2017)PermalinkHow does spatial scale affect species richness modelling? A test using remote sensing data and geostatistics / M. Marcantonio in Annali di Botanica, vol 7 (2017)PermalinkLand Surface Remote Sensing in Continental Hydrology, ch. 3. Using satellite scatterometers to monitor continental surfaces / Pierre-Louis Frison (2017)PermalinkLearning-based spatial-temporal superresolution mapping of forest cover with MODIS images / Yihang Zhang in IEEE Transactions on geoscience and remote sensing, vol 55 n° 1 (January 2017)PermalinkLe mémento inventaire forestier, édition 2017 / Institut national de l'information géographique et forestière (2012 -) (2017)PermalinkNew improvements in the French national forest inventory : towards the integration of forest resources assessment and ecosystem monitoring / François Morneau (2017)PermalinkPhytosociological analysis of alpine swards and heathlands (pioneer patches) on ridges and peaks in the Julian Alps (NW Slovenia) / Igor Dakskobler in Hacquetia, vol 16 n° 1 (January 2017)PermalinkSegmentation sémantique de données de télédétection multimodale : application aux peuplements forestiers / Clément Dechesne (2017)PermalinkSegmentation sémantique de peuplements forestiers par analyse conjointe d’imagerie multispectrale très haute résolution et de données 3D Lidar aéroportées / Clément Dechesne (2017)Permalink