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A novel solution of the Finnish NSDI / Tuuli Toivonen in Geoinformatics, vol 10 n° 7 (01/11/2007)
[article]
Titre : A novel solution of the Finnish NSDI Type de document : Article/Communication Auteurs : Tuuli Toivonen, Auteur ; R. Kalliola, Auteur Année de publication : 2007 Article en page(s) : pp 24 - 25 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Infrastructure de données
[Termes IGN] acquisition de données
[Termes IGN] Finlande
[Termes IGN] implémentation (informatique)
[Termes IGN] infrastructure européenne de données localisées
[Termes IGN] INSPIRE
[Termes IGN] interface web
[Termes IGN] métadonnées
[Termes IGN] partage de données localisées
[Termes IGN] qualité des donnéesRésumé : (Auteur) The INSPIRE directive puts foward a variety of GI infrastructure services at the national level. Most countries are currently at the planning phase of their own metadata and viewing services. Issues related to describing spatial data quality, defining data prices and enhancing the discovery of data sets are topical from country to country. In Finland, the challenges have been solved in part through a concept of spatial data lending. Copyright GEOinformatics Numéro de notice : A2007-497 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28860
in Geoinformatics > vol 10 n° 7 (01/11/2007) . - pp 24 - 25[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 262-07071 SL Revue Centre de documentation Revues en salle Disponible A spatio-temporal population model to support risk assessment and damage analysis for decision-making / T. Ahola in International journal of geographical information science IJGIS, vol 21 n° 8 (september 2007)
[article]
Titre : A spatio-temporal population model to support risk assessment and damage analysis for decision-making Type de document : Article/Communication Auteurs : T. Ahola, Auteur ; K. Virrantaus, Auteur ; et al., Auteur Année de publication : 2007 Article en page(s) : pp 935 - 953 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Analyse spatiale
[Termes IGN] données spatiotemporelles
[Termes IGN] Finlande
[Termes IGN] migration humaine
[Termes IGN] mobilité territoriale
[Termes IGN] modèle conceptuel de données spatio-temporelles
[Termes IGN] outil d'aide à la décision
[Termes IGN] protection civile
[Termes IGN] risque majeur
[Termes IGN] visualisation dynamique
[Termes IGN] zone urbaineRésumé : (Auteur) The aim of this research is to develop and implement a simple spatio-temporal model of population location that might improve risk assessment and damage analysis for decision-making in both the Finnish Fire and Rescue Services and the Finnish Defence Forces. The motivation for the research is that present risk models do not take into account the temporal variation in population location during different times of the day. We use spatio-temporal modelling methods to model the population dynamics, and visualization techniques to represent the model outcomes. In addition, we apply the developed model to a damage-analysis application. The case study site is located in the centre of Helsinki. The model uses a basic population and workplace dataset maintained by the Helsinki Metropolitan Area Council. By means of this model, we intend to advance risk assessment, which considers the consequences of accidents. This model has the potential to help decision-makers evaluate their plans in several application areas - such as achieving better preparedness by having more reliable evacuation plans and resource allocation. In addition to the application-related technological research, a more generic framework about decision-making supported by spatio-temporal knowledge and visualization is presented. Copyright Taylor & Francis Numéro de notice : A2007-326 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1080/13658810701349078 En ligne : https://doi.org/10.1080/13658810701349078 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28689
in International journal of geographical information science IJGIS > vol 21 n° 8 (september 2007) . - pp 935 - 953[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 079-07051 RAB Revue Centre de documentation En réserve L003 Disponible 079-07052 RAB Revue Centre de documentation En réserve L003 Disponible Estimation of local forest attributes, utilizing two-phase sampling and auxiliary data / Sakari Tuominen (2007)
Titre : Estimation of local forest attributes, utilizing two-phase sampling and auxiliary data Type de document : Thèse/HDR Auteurs : Sakari Tuominen, Auteur ; Simo Poso, Directeur de thèse Editeur : Helsinki [Finlande] : Faculty of Agriculture and Forestry of the University of Helsinki Année de publication : 2007 Autre Editeur : Helsinki [Finland] : The Finnish Society of Forest Science Importance : 46 p. Format : 21 x 30 cm ISBN/ISSN/EAN : 978-951-651-170-5 Note générale : bibliographie
Academic dissertation to be presented, with the permission of the Faculty of Agriculture and Forestry of University of Helsinki, for public criticism in Auditorium 2, Forest Sciences' Building, Latokartanonkaari 9, HelsinkiLangues : Anglais (eng) Descripteur : [Termes IGN] analyse comparative
[Termes IGN] base de données forestières
[Termes IGN] échantillonnage
[Termes IGN] extraction de données
[Termes IGN] Finlande
[Termes IGN] forêt
[Termes IGN] fusion de données multisource
[Termes IGN] gestion forestière
[Termes IGN] image à très haute résolution
[Termes IGN] image aérienne
[Termes IGN] image spectrale
[Termes IGN] inventaire forestier (techniques et méthodes)
[Termes IGN] inventaire forestier étranger (données)
[Termes IGN] placette d'échantillonnage
[Vedettes matières IGN] Inventaire forestierRésumé : (auteur) This thesis examines the feasibility of a forest inventory method based on two-phase sampling in estimating forest attributes at the stand or substand levels for forest management purposes. The method is based on multi-source forest inventory combining auxiliary data consisting of remote sensing imagery or other geographic information and field measurements. Auxiliary data are utilized as first-phase data for covering all inventory units. Various methods were examined for improving the accuracy of the forest estimates. Pre-processing of auxiliary data in the form of correcting the spectral properties of aerial imagery was examined (I), as was the selection of aerial image features for estimating forest attributes (II). Various spatial units were compared for extracting image features in a remote sensing aided forest inventory utilizing very high resolution imagery (III). A number of data sources were combined and different weighting procedures were tested in estimating forest attributes (IV, V). Correction of the spectral properties of aerial images proved to be a straightforward and advantageous method for improving the correlation between the image features and the measured forest attributes. Testing different image features that can be extracted from aerial photographs (and other very high resolution images) showed that the images contain a wealth of relevant information that can be extracted only by utilizing the spatial organization of the image pixel values. Furthermore, careful selection of image features for the inventory task generally gives better results than inputting all extractable features to the estimation procedure. When the spatial units for extracting very high resolution image features were examined, an approach based on image segmentation generally showed advantages compared with a traditional sample plot-based approach. Combining several data sources resulted in more accurate estimates than any of the individual data sources alone. The best combined estimate can be derived by weighting the estimates produced by the individual data sources by the inverse values of their mean square errors. Despite the fact that the plot-level estimation accuracy in two-phase sampling inventory can be improved in many ways, the accuracy of forest estimates based mainly on single-view satellite and aerial imagery is a relatively poor basis for making stand-level management decisions. Note de contenu : Introduction
1 - Two-phase sampling in forest inventory
2 - Remote sensing in forest inventory
3 - Objectives of the thesis and substudies
4 - Materials
5 - Results
6 - DiscussionNuméro de notice : 21697 Affiliation des auteurs : non IGN Thématique : FORET/IMAGERIE Nature : Thèse étrangère Note de thèse : Thesis : Forestry : Helsinki : 2007 En ligne : https://helda.helsinki.fi/handle/10138/20667 Format de la ressource électronique : URL Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=90940
contenu dans Proceedings of the ISPRS Workshop 'Laser Scanning 2007 and SilviLaser 2007' September 12-14, 2007 Espoo, Finland / Petri Rönnholm (2007)
Titre : Experiences and possibilities of ALS based forest inventory in Finland Type de document : Article/Communication Auteurs : Matti Maltamo, Auteur ; Petteri Packalen, Auteur ; Jussi Peuhkurinen, Auteur ; et al., Auteur Editeur : International Society for Photogrammetry and Remote Sensing ISPRS Année de publication : 2007 Collection : International Archives of Photogrammetry and Remote Sensing, ISSN 0252-8231 Conférence : ISPRS 2007, Workshop Laser Scanning and Silvilaser 12/09/2007 14/09/2007 Espoo Finlande OA Proceedings Importance : pp 270 - 279 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Lasergrammétrie
[Termes IGN] Finlande
[Termes IGN] inventaire forestier (techniques et méthodes)
[Termes IGN] inventaire forestier étranger (données)Résumé : (auteur) During last ten years the research concerning airborne laser scanning base d forest inventory applications has been very active in different parts of the world. In Finland, both basic approaches, single tree detection and area based modeling have been widely examined. In the following the results of the ALS based forest inventory experiments and further possibilities in Finland are reviewed and discussed. A short review of Finnish forestry in relation to possibilities of ALS based forest invent ories is included as well. Finally, some examples concerning the comparison of single tree detection and area based modeling and the usability of spatial information provided by ALS data are presented. Numéro de notice : C2007-047 Affiliation des auteurs : non IGN Thématique : FORET/IMAGERIE Nature : Communication DOI : sans En ligne : https://www.isprs.org/proceedings/XXXVI/3-W52/final_papers/Maltamo_2007_keynote. [...] Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=100590 Model-based prediction error uncertainty estimation for K-NN method / H.J. Kim in Remote sensing of environment, vol 104 n° 3 (15/10/2006)
[article]
Titre : Model-based prediction error uncertainty estimation for K-NN method Type de document : Article/Communication Auteurs : H.J. Kim, Auteur ; Erkki Tomppo, Auteur Année de publication : 2006 Article en page(s) : pp 257 - 263 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image optique
[Termes IGN] Betula (genre)
[Termes IGN] classification barycentrique
[Termes IGN] erreur moyenne quadratique
[Termes IGN] Finlande
[Termes IGN] image Landsat-TM
[Termes IGN] inventaire forestier étranger (données)
[Termes IGN] Picea abies
[Termes IGN] Pinus (genre)
[Termes IGN] Populus (genre)
[Termes IGN] variogrammeRésumé : (Auteur) The k-nearest neighbour estimation method is one of the main tools used in multi-source forest inventories. It is a powerful non-parametric method for which estimates are easy to compute and relatively accurate. One downside of this method is that it lacks an uncertainty measure for predicted values and for areas of an arbitrary size. We present a method to estimate the prediction uncertainty based on the variogram model which derives the necessary formula for the k-nn method. A data application is illustrated for multi-source forest inventory data, and the results are compared at pixel level to the conventional RMSE method. We find that the variogram model-based method which is analytic, is competitive with the RMSE method. Numéro de notice : A2006-414 Affiliation des auteurs : non IGN Thématique : FORET/IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.rse.2006.04.009 En ligne : https://doi.org/10.1016/j.rse.2006.04.009 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28138
in Remote sensing of environment > vol 104 n° 3 (15/10/2006) . - pp 257 - 263[article]Tree cover and height estimation in the Fennoscandian tundra-taiga transition zone using multiangular MISR data / J. Heiskanen in Remote sensing of environment, vol 103 n° 1 (15 July 2006)PermalinkEuropean property information, EULIS: removing barriers to cross-border lending / J. Atkey in GIM international, vol 20 n° 7 (July 2006)PermalinkUncovering the statistical and spatial characteristics of fine toposcale DEM error / Juha Oksanen in International journal of geographical information science IJGIS, vol 20 n° 4 (april 2006)PermalinkMapping Lake CDOM [coloured dissolved organic matter] by satellite remote sensing / T. Kuster in Remote sensing of environment, vol 94 n° 4 (28/02/2005)PermalinkAssesment of manual and automated methods for updating stand-level forest inventories based on aerial photography / Perttu Antilla (2005)PermalinkEvaluation of the MODIS LAI at coniferous forest site in Finland / Y. Wang in Remote sensing of environment, vol 91 n° 1 (15/05/2004)PermalinkEstimation of timber volume and stem density based on scanning laser altimetry and expected tree size distribution functions / Matti Maltamo in Remote sensing of environment, vol 90 n° 3 (15/04/2004)PermalinkArtificial neural network-based techniques for the retrieval of SWE [snow water equivalent] and snow depth from SSM/I data / Marco Tedesco in Remote sensing of environment, vol 90 n° 1 (15/03/2004)PermalinkHämeen-Uudenmaan metsäkeskuksen alueen metsävarat 1965–99 / Erkki Tomppo in Metsätieteen aikakauskirja, vol 2000 n° 3B ([01/09/2000])PermalinkGroupe de travail "Réseau gravimétrique et géoïde de référence" / D. Bonijoly (2000)PermalinkComparison of national guidelines for technical and cadastral mapping in Europe ("Ferrara test") / S. Dequal (01/09/1999)PermalinkRevision measurement of large scale topographic data / R.P. Kirby (01/09/1999)PermalinkFinnish society benefits from maps on the net: national land survey lauches mapsite service / K. Makinen in GIM international, vol 13 n° 4 (May 1999)PermalinkMap generalisation in the nordic countries / T. Kilpelainen (1999)PermalinkSoil resources of Europe / P. Bullock (1999)PermalinkKunnittaiset metsävaratiedot 1990–94 / Erkki Tomppo in Metsätieteen aikakauskirja, vol 1998 n° 4B ([01/12/1998])PermalinkCadastre on a clean slate / A. Schofield in GIS Europe, vol 7 n° 7 (01/07/1998)PermalinkAn early crop yield estimation method for Finnish conditions / Risto Kuittinen (1998)PermalinkOn superconducting gravimeter observations above 8 MHz at the Metsahovi station, Finland / H. Virtanen (1998)PermalinkLes cartes de Finlande mises à disposition sur un site web / K. Makinen in Géomètre, vol 1997 n° 8-9 (août - septembre 1997)PermalinkAutomated calibration of precise levelling rods in Finland / M. Takalo (1997)PermalinkDetermination of orthometric heights using GPS levelling / Markku Ollikainen (1997)PermalinkProceedings of the Finnish-Russian seminar on remote sensing / Risto Kuittinen (1997)PermalinkSymposium hydrographique, 15ème conférence hydrographique internationale / Organisation hydrographique internationale (1997)PermalinkThe GWR T020 superconducting gravimeter 1994-1996 at the Metsahovi station, Finland / H. Virtanen (1997)PermalinkActive fault line search in southern and central Finland with precise levellings / P. Lehmuskoski (1996)PermalinkPermalinkCoordinate systems, GPS and the geoid / Martin Vermeer (1995)PermalinkGeodetic operations in Finland 1983-1986 / J. Kakkuri (1995)PermalinkGeodetic operations in Finland 1992-1995 / J. Kakkuri (1995)PermalinkGPS measurements at the Nuottavaara post glacial fault / Markku Poutanen (1995)PermalinkThe installation of and first results from the superconducting gravimeter GWR20 at the Metsahovi station, Finland / H. Virtanen (1995)PermalinkTwo new geoids determined at the FGI / Martin Vermeer (1995)PermalinkFinnish corine land cover - a feasibility study of automatic generalization and data quality assessment / Olli Jaakkola (1994)PermalinkObservation results / R. Konttinen (1994)PermalinkThe 1993 adjustement of the Finnish first-order terrestrial triangulation / Jorma Jokela (1994)PermalinkThe program for the 1993 adjustment of the Finnish first-order terrestrial triangulation / Jorma Jokela (1994)PermalinkLa Finlande depuis 500 ans sur les cartes d'Europe / E. Fredrikson (1993)PermalinkKinematic GPS in aerotriangulation in Finland / A. Hogholen (1993)PermalinkMARI 93, l'information géographique numérique : Actes, exposition et conférences / MARI (1993)PermalinkThe Sino-Finnish absolute gravity campaign in 1990 / J. Makinen (1993)PermalinkGeodetic observations on the Pasmajarvi postglacial fault / Aimo Kiviniemi (1992)PermalinkProcessing of the 1991 GPS campaigns in central Finland for crustal deformation studies / R. Chen (1992)Permalink[Dossier de la] 9ème Assemblée générale de l'Association Cartographique Internationale / International cartographic association = association cartographique internationale (1991)PermalinkLisayksia ja korjauksia suomen tarkkavaaitusten linjastoon, 1977-1989 / M. Takalo (1991)Permalink