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Towards a framework for mining and analysing spatio-temporal datasets / Michela Bertolotto in International journal of geographical information science IJGIS, vol 21 n° 8 (september 2007)
[article]
Titre : Towards a framework for mining and analysing spatio-temporal datasets Type de document : Article/Communication Auteurs : Michela Bertolotto, Auteur ; S. Di Martino, Auteur ; et al., Auteur Année de publication : 2007 Article en page(s) : pp 895 - 906 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Analyse spatiale
[Termes IGN] exploration de données géographiques
[Termes IGN] Google Earth
[Termes IGN] interface graphique
[Termes IGN] Java3D
[Termes IGN] phénomène météorologique
[Termes IGN] risque naturel
[Termes IGN] tempête
[Termes IGN] visualisation 3DRésumé : (Auteur) High-resolution spatio-temporal datasets are being collected every day to record the behaviour of several natural phenomena. However, data-mining techniques are needed to extract relevant patterns from very large repositories and reveal spatial and temporal patterns in the behaviour of these phenomena. To this aim, we propose a system for mining data with spatial and temporal characteristics, and for visualizing and interpreting the results. Within this system, we have developed two complementary 3D visualization environments, one based on Google Earth and one relying on a Java3D graphical user interface. In this paper, we illustrate the main features of the system we have developed, and report on the main results we have obtained by analysing the Hurricane Isabel dataset. Copyright Taylor & Francis Numéro de notice : A2007-323 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1080/13658810701349052 En ligne : https://doi.org/10.1080/13658810701349052 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28686
in International journal of geographical information science IJGIS > vol 21 n° 8 (september 2007) . - pp 895 - 906[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 Use of TRMM in determining the climatic characteristics of rainfall over Bangladesh / M.N. Islam in Remote sensing of environment, vol 108 n° 3 (15/06/2007)
[article]
Titre : Use of TRMM in determining the climatic characteristics of rainfall over Bangladesh Type de document : Article/Communication Auteurs : M.N. Islam, Auteur ; H. Uyeda, Auteur Année de publication : 2007 Article en page(s) : pp 264 - 276 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection
[Termes IGN] analyse comparative
[Termes IGN] analyse diachronique
[Termes IGN] Bangladesh
[Termes IGN] climatologie
[Termes IGN] données météorologiques
[Termes IGN] estimation statistique
[Termes IGN] image radar
[Termes IGN] image TRMM-MI
[Termes IGN] précipitationRésumé : (Auteur) Five years of data from 1998 to 2002 of TRMM-3B42 version 5 (V5), 3B43 V5, 3B42 version 6 (V6), 3B43 V6, and the Bangladesh Meteorological Department rain-gauge network were analyzed to understand the climatic characteristics of rainfall over Bangladesh. TRMM-PR 2A25 data were used to obtain the precipitation field of the convection events. Daily rainfall measured by TRMM V5 3B42 was compared to that of rain-gauge values from pre-monsoon to post-monsoon months (March–November). The time sequence patterns of the daily rainfall determined by the V5 3B42 and those from rain gauges were remarkably similar. The spatial and temporal averages of rainfall revealed good estimations of rainfall: during March to November, the V5 3B42- and rain gauge-estimated daily rainfall was 8.12 and 8.34 mm, respectively. In annual scale, TRMM V5 3B42-, V5 3B43-, V6 3B42-, V6 3B43- and rain-gauge estimated rainfall was 6.9, 6.4, 6.6, 6.8 and 7.1 mm/day, respectively. The average percentage of rainy days determined by V5 3B42 data with respect to the rain-gauge value was 96%. TRMM is useful for estimating the average values of rainfall in Bangladesh. The prominent difference between rainfall estimated by rain-gauge and V5 3B42 was found to be period- and location-dependent. The V5 3B42 overestimated the rainfall during the pre-monsoon period and in dry regions but underestimated it during the monsoon period and in wet regions. The reason for the differences according to season and locations is considered to be the vertical cross section of convection obtained by TRMM-PR 2A25 data. The rainfall overestimation in pre-monsoon and underestimation in monsoon period measured by V5 3B42 is reduced to reasonable amount by V6 3B42 and V6 3B43. In this manner, the merit of using TRMM data for climatological studies of rainfall over Bangladesh is shown. Copyright Elsevier Numéro de notice : A2007-298 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.rse.2006.11.011 En ligne : https://doi.org/10.1016/j.rse.2006.11.011 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28661
in Remote sensing of environment > vol 108 n° 3 (15/06/2007) . - pp 264 - 276[article]vol 45 n° 6 Tome 1 - June 2007 - Special issue on remote sensing for major disaster prevention, monitoring and assessment (Bulletin de IEEE Transactions on geoscience and remote sensing) / Geoscience and remote sensing society
[n° ou bulletin]
est un bulletin de IEEE Transactions on geoscience and remote sensing / IEEE Geoscience and remote sensing society (Etats-Unis) (1986 -)
Titre : vol 45 n° 6 Tome 1 - June 2007 - Special issue on remote sensing for major disaster prevention, monitoring and assessment Type de document : Périodique Auteurs : Geoscience and remote sensing society, Auteur Année de publication : 2007 Importance : 250 p. Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Télédétection
[Termes IGN] effondrement de terrain
[Termes IGN] incendie de forêt
[Termes IGN] inondation
[Termes IGN] outil d'aide à la décision
[Termes IGN] prévention des risques
[Termes IGN] risque majeur
[Termes IGN] séisme
[Termes IGN] tempêteNuméro de notice : 065-0706A Affiliation des auteurs : non IGN Thématique : FORET/IMAGERIE Nature : Numéro de périodique En ligne : http://ieeexplore.ieee.org/xpl/tocresult.jsp?isnumber=4215027&punumber=36 Format de la ressource électronique : URL sommaire Permalink : https://documentation.ensg.eu/index.php?lvl=bulletin_display&id=9518 [n° ou bulletin]Contient
- Satellite image analysis for disaster and crisis-management support / S. Voigt in IEEE Transactions on geoscience and remote sensing, vol 45 n° 6 Tome 1 (June 2007)
- Automatic and precise orthorectification, coregistration, and subpixel correlation of satellite images: application to ground deformation measurements / S. Leprince in IEEE Transactions on geoscience and remote sensing, vol 45 n° 6 Tome 1 (June 2007)
- A novel approach for disaster monitoring: fractal models and tools / G. Di Martino in IEEE Transactions on geoscience and remote sensing, vol 45 n° 6 Tome 1 (June 2007)
Multiscale analysis of precipitable water vapor over Africa from GPS data and ECMWF analyses / Olivier Bock in Geophysical research letters, vol 34 n° 9 (16 May 2007)
[article]
Titre : Multiscale analysis of precipitable water vapor over Africa from GPS data and ECMWF analyses Type de document : Article/Communication Auteurs : Olivier Bock , Auteur ; Françoise Guichard, Auteur ; Serge Janicot, Auteur ; Jean-Philippe Lafore, Auteur ; Marie-Noëlle Bouin , Auteur ; Benjamin Sultan, Auteur Année de publication : 2007 Projets : 1-Pas de projet / Article en page(s) : 6 p. Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de géodésie spatiale
[Termes IGN] Afrique (géographie physique)
[Termes IGN] analyse multiéchelle
[Termes IGN] données GPS
[Termes IGN] données météorologiques
[Termes IGN] précipitation
[Termes IGN] vapeur d'eauRésumé : (auteur) This is the first climatological analysis of precipitable water vapor (PWV) from GPS data over Africa. The data reveal significant modulations and variability in PWV over a broad range of temporal scales. GPS PWV estimates are compared to ECMWF reanalysis ERA40. Both datasets show good agreement at the larger scales (seasonal cycle and inter‐annual variability), driven by large scale moisture transport. At intra‐seasonal (15–40 days) and synoptic (3–10 days) scales, strong PWV modulations are observed from GPS, consistently with ECMWF analysis. They are shown to be correlated with convection and the passage of equatorial waves and African Easterly waves. The high‐frequency GPS observations also reveal a significant diurnal cycle in PWV, which magnitude and spectral content depends strongly on geographic location and shows a seasonal modulation. The diurnal cycle of PWV is poorly represented in ERA40 reflecting weaknesses in the water cycle of global circulation models at this timescale. Numéro de notice : A2007-682 Affiliation des auteurs : LAREG+Ext (1991-2011) Thématique : POSITIONNEMENT Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1029/2006GL028039 Date de publication en ligne : 09/05/2007 En ligne : https://doi.org/10.1029/2006GL028039 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=95742
in Geophysical research letters > vol 34 n° 9 (16 May 2007) . - 6 p.[article]Estimating spatial patterns of rainfall interception from remotely sensed vegetation indices and spectral mixture analysis / S.M. de Jong in International journal of geographical information science IJGIS, vol 21 n° 5 (may 2007)
[article]
Titre : Estimating spatial patterns of rainfall interception from remotely sensed vegetation indices and spectral mixture analysis Type de document : Article/Communication Auteurs : S.M. de Jong, Auteur ; V.G. Jetten, Auteur Année de publication : 2007 Article en page(s) : pp 529 - 545 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection
[Termes IGN] analyse des mélanges spectraux
[Termes IGN] érosion hydrique
[Termes IGN] évapotranspiration
[Termes IGN] image HYMAP
[Termes IGN] image hyperspectrale
[Termes IGN] indice de végétation
[Termes IGN] Leaf Area Index
[Termes IGN] pluie
[Termes IGN] ruissellementRésumé : (Auteur) Rainfall interception by vegetation is an important factor in the water balance. Consequently, rainfall interception should also be an important factor in models simulating processes such as evaporation, transpiration, surface runoff, soil erosion, and crop growth. In practice, however, it is difficult to make quantitative assessments of the spatial and temporal distribution of rainfall interception loss at the catchment level, for instance, and to make these values available as model input. In this paper, we present a novel method using earth observation images to estimate local quantitative values of rainfall interception loss. Leaf Area Index (LAI) and fractional vegetation cover per grid cell are important process variables for rainfall interception. These two variables are estimated from images using spectral vegetation indices and using spectral mixture analysis, respectively. Relations between canopy storage capacity and LAI exist for several plant species and vegetation types, but limited data are found on crops, and more research is needed in this field. The new method is explained and illustrated for a study area in southern France with a variety of land-cover types. It is found to be a valuable and practical approach to quantitatively assess spatial patterns of interception loss for given rainfall events. Copyright Taylor & Francis Numéro de notice : A2007-135 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.1080/13658810601064884 En ligne : https://doi.org/10.1080/13658810601064884 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28498
in International journal of geographical information science IJGIS > vol 21 n° 5 (may 2007) . - pp 529 - 545[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 079-07031 RAB Revue Centre de documentation En réserve L003 Disponible 079-07032 RAB Revue Centre de documentation En réserve L003 Disponible Apport de l'imagerie radar à l'étude des dynamiques pluvieuses sur le massif central / F. Jubertie in Photo interprétation, vol 43 n° 1 (Mars 2007)PermalinkStudy of rain events over the South China Sea by synergistic use of multi-sensor satellite and ground-based meteorological data / W. Alpers in Photogrammetric Engineering & Remote Sensing, PERS, vol 73 n° 3 (March 2007)PermalinkInondations : les maires moins seuls / M. Mayo in Géomètre, n° 2033 (janvier 2007)PermalinkModelling the risk of cyclone wave damage to coral reefs using GIS: a case study of the Great Barrier Reef, 1969-2003 / M.L. Puotinen in International journal of geographical information science IJGIS, vol 21 n° 1-2 (january 2007)PermalinkOperation analysis of a reservoir in GIS environment using remote sensing inputs / M.K. Goel in International Journal of Remote Sensing IJRS, vol 28 n° 1-2 (January 2007)PermalinkSimulation et assimilation de données radar pour la prévision de la convection profonde à fine échelle / Olivier Caumont (2007)PermalinkAMMA, une étude multidisciplinaire de la mousson ouest-africaine / Jean-Luc Redelsperger in La Météorologie, n° 54 ([01/10/2006])PermalinkUn système géomatique de préparation aux interventions d'urgence dans le bassin du Mékong : modèle conceptuel de données pour la sécurité et la santé publique lors d'inondations / G. Aube in Revue internationale de géomatique, vol 16 n°3 - 4 (septembre – novembre 2006)PermalinkHeat and drought 2003 in Europe: a climate synthesis / Martine Rebetez in Annals of Forest Science, Vol 63 n° 6 (september 2006)PermalinkL'intranet cartographique d'Annecy / P. Coudurier in Géomatique expert, n° 52 (01/09/2006)Permalink