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Titre : Sea surface roughness observed by high resolution radar Type de document : Monographie Auteurs : Atsushi Fujimura, Éditeur scientifique ; Susanne Lehner, Éditeur scientifique ; Alex Soloviev, Éditeur scientifique ; Xiaofeng Li, Éditeur scientifique Editeur : Bâle [Suisse] : Multidisciplinary Digital Publishing Institute MDPI Année de publication : 2019 Importance : 202 p. ISBN/ISSN/EAN : 978-3-03921-747-2 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection
[Termes IGN] bande X
[Termes IGN] image radar moirée
[Termes IGN] image Sentinel-SAR
[Termes IGN] rugosité
[Termes IGN] surface de la mer
[Termes IGN] télédétection en hyperfréquence
[Termes IGN] télédétection spatiale
[Termes IGN] turbulence
[Termes IGN] vague
[Termes IGN] ventRésumé : (Auteur) Changes in sea surface roughness are usually associated with a change in the sea surface wind field. This interaction has been exploited to measure sea surface wind speed by scatterometry. A number of features on the sea surface associated with changes in roughness can be observed by synthetic aperture radar (SAR) because of the change in Bragg backscatter of the radar signal by damping of the resonant ocean capillary waves. With various radar frequencies, resolutions, and modes of polarization, sea surface features have been analyzed in numerous campaigns, bringing various datasets together, thus allowing for new insights into small-scale processes at a larger areal coverage. This Special Issue aims at investigating sea surface features detected by high spatial resolution radar systems, such as SAR. Numéro de notice : 26504 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Recueil / ouvrage collectif DOI : 10.3390/books978-3-03921-747-2 En ligne : https://doi.org/10.3390/books978-3-03921-747-2 Format de la ressource électronique : URL Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=97078 Simultaneous characterization of objects temperature and radiative properties through multispectral infrared thermography / Thibaud Toullier (2019)
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Titre : Simultaneous characterization of objects temperature and radiative properties through multispectral infrared thermography Titre original : Caractérisation conjointe de la température et des propriétés radiatives des objets par thermographie infrarouge multispectrale Type de document : Thèse/HDR Auteurs : Thibaud Toullier, Auteur ; Laurent Mevel, Directeur de thèse ; Jean Dumoulin, Directeur de thèse Editeur : Rennes : Université de Rennes 1 Année de publication : 2019 Importance : 233 p. Format : 21 x 30 cm Note générale : bibliographie
Thèse de Doctorat Mathématique et Sciences et Technologies de l’Information et de la Communication, Spécialité Signal, Image, Vision, Université de Rennes 1Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image
[Termes IGN] construction
[Termes IGN] contrôle thermique
[Termes IGN] données météorologiques
[Termes IGN] données multicapteurs
[Termes IGN] estimation bayesienne
[Termes IGN] filtre de Kalman
[Termes IGN] image multibande
[Termes IGN] image thermique
[Termes IGN] méthode de Monte-Carlo par chaînes de Markov
[Termes IGN] Python (langage de programmation)
[Termes IGN] rayonnement solaire
[Termes IGN] scène 3D
[Termes IGN] surveillance d'ouvrage
[Termes IGN] thermographieIndex. décimale : THESE Thèses et HDR Résumé : (auteur) The latest technological improvements in low-cost infrared cameras have brought new opportunities for long-term infrastructures monitoring. The accurate measurement of surfaces' temperatures is facing the lack of knowledge of radiatives properties of the scene. By using multi-sensors instrumentation, the measurement model can be refined to get a better estimate of the temperature. To overcome a lack of sensors instrumentation, it is shown that online and free available climatic data can be used. Then, Bayesian methods to estimate simultaneously the emissivity and temperature have been developed and compared to literature's methods. A radiative exchange simulator of 3D scenes have been developed to compare those different methods on numerical data. This software uses the hardware acceleration as well as a GPGPU approach to reduce the computation time. As a consequence, obtained numerical results emphasized an advanced use of multi-spectral infrared thermography for the monitoring of structures. This simultaneous estimation enables to have an estimate of the temperature by infrared thermography with a known uncertainty. Note de contenu : Introduction
1- Context and problem positioning
2- Bibliographical study
3- In-situ long-term thermal monitoring of structures: environmental measurements bias compensation
4- Study and development of an infrared multispectral images simulator
5- Proposed and studied methods for the simultaneous estimation of temperature and emissivity
Conclusion and future workNuméro de notice : 25705 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Thèse française Note de thèse : Thèse de Doctorat : Signal, Image, Vision : Rennes 1 : 2019 nature-HAL : Thèse DOI : sans En ligne : https://hal.science/tel-02389051 Format de la ressource électronique : URL Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=94850
Titre : Status and dynamics of forests in Germany Type de document : Monographie Auteurs : Nicole Wellbrock, Auteur ; Andreas Bolte, Auteur Editeur : Springer Nature Année de publication : 2019 Importance : 384 p. Format : 16 x 24 cm ISBN/ISSN/EAN : 978-3-030-15734-0 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] Allemagne
[Termes IGN] changement climatique
[Termes IGN] gestion forestière durable
[Termes IGN] inventaire forestier étranger (données)
[Termes IGN] peuplement forestier
[Termes IGN] puits de carbone
[Termes IGN] stress hydrique
[Vedettes matières IGN] Inventaire forestierRésumé : (éditeur) Forest ecosystems in Central Europe are changing as a result of anthropogenic influences and changing climate conditions. As such, a large-scale monitoring programme was undertaken in order to understand the influence of site modification, deposition of air pollutants, and climate. This book presents the scientific findings of this study for Germany, including the major challenges with regard to the future preservation and management of forest ecosystems under environmental change. In addition, it addresses a number of central questions: what are the main factors affecting forest stands and soil integrity? How, and how rapidly, are forest ecosystems changing? How diverse are the changes across Germany? What will be the main risks in sustainable forest management in the future? And how can policy support the development and maintenance of adaptive and resilient forests that provide essential ecosystem services, today and in the future? Helping readers understand the importance of soils and related ecosystem processes for future sustainable forestry, and sharing essential findings on environmental change and related changes in forest status and dynamics, the book is a valuable resource for researchers and policymakers interested in science-based decisions. Note de contenu : 1- Concept and methodology of the National Forest Soil Inventory
2- Environmental settings and their changes in the last decades
3- Soil water budget and drought stress
4- Soil acidification in German forest soils
5- Nitrogen status and dynamics in German forest soils
6- Carbon stocks and carbon stock changes in German forest soils
7- Heavy metal stocks and concentrations in forest soils
8- Occurrence and spatial distribution of selected organic substances in Germany’s forest soils
9- Nutritional status of major forest tree species in Germany
10- Plants as indicators of soil chemical properties
11- Spatial response patterns in biotic reactions of forest trees and their associations with environmental variables in Germany
12- Sustainable use and development of forests and forest soils: A ResumeNuméro de notice : 25918 Affiliation des auteurs : non IGN Thématique : FORET Nature : Monographie En ligne : http://library.oapen.org/handle/20.500.12657/23114 Format de la ressource électronique : URL Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=96101 Tempête Xynthia à la Faute-sur-Mer : une analyse a posteriori de l’impact des « zones noires » et des alternatives possibles / Axel Creach in Norois, n° 251 ([01/01/2019])
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Titre : Tempête Xynthia à la Faute-sur-Mer : une analyse a posteriori de l’impact des « zones noires » et des alternatives possibles Type de document : Article/Communication Auteurs : Axel Creach, Auteur Année de publication : 2019 Article en page(s) : pp 43 - 63 Note générale : bibliographie Langues : Français (fre) Descripteur : [Termes IGN] coût
[Termes IGN] habitat urbain
[Termes IGN] politique publique
[Termes IGN] tempête Xynthia de 2010
[Termes IGN] vulnérabilitéRésumé : (auteur) En février 2010, la commune de La Faute-sur-Mer (Vendée) est durement impactée par la tempête Xynthia. 29 personnes décèdent (pour une population de 1 008 habitants), piégées à l’intérieur de chez elles. Face à ce constat, l’État décide le rachat et la destruction des constructions jugées les plus dangereuses entrainant la disparition de 552 maisons (sur 3 737 habitations). La commune est ainsi doublement touchée par Xynthia. La Cour des Comptes se montre critique quant aux sommes engagées pour cette mesure qu’elle qualifie d’« une utilisation inefficace des fonds publics. » En utilisant la méthodologie de l’indice VIE, cette recherche montre que des alternatives étaient possibles permettant à la fois de réduire efficacement la vulnérabilité des constructions pour leurs occupants, maintenir un maximum de logements sur la commune, tout en maîtrisant les dépenses publiques. Ainsi, envisager simultanément un renforcement de la prévention, l’adaptation architecturale des constructions et la relocalisation auraient permis de supprimer l’intégralité des constructions dangereuses pour un coût deux fois inférieur (76 millions contre 160 pour les « zones noires ») tout en maintenant 70 % des constructions détruites après Xynthia. Numéro de notice : A2019-672 Affiliation des auteurs : non IGN Thématique : URBANISME Nature : Article DOI : 10.4000/norois.9168 En ligne : https://doi.org/10.4000/norois.9168 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=101600
in Norois > n° 251 [01/01/2019] . - pp 43 - 63[article]Toward global soil moisture monitoring with sentinel-1 : harnessing assets and overcoming obstacles / Bernhard Bauer-Marschallinger in IEEE Transactions on geoscience and remote sensing, vol 57 n° 1 (January 2019)
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Titre : Toward global soil moisture monitoring with sentinel-1 : harnessing assets and overcoming obstacles Type de document : Article/Communication Auteurs : Bernhard Bauer-Marschallinger, Auteur ; Vahid Freeman, Auteur ; Senmao Cao, Auteur ; et al., Auteur Année de publication : 2019 Article en page(s) : pp 520 - 539 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image radar et applications
[Termes IGN] bande C
[Termes IGN] bilan hydrique
[Termes IGN] humidité du sol
[Termes IGN] image radar moirée
[Termes IGN] image Sentinel-SAR
[Termes IGN] Italie
[Termes IGN] Ombrie (Italie)
[Termes IGN] surveillance agricole
[Termes IGN] surveillance météorologiqueRésumé : (Auteur) Soil moisture is a key environmental variable, important to, e.g., farmers, meteorologists, and disaster management units. Here, we present a method to retrieve surface soil moisture (SSM) from the Sentinel-1 (S-1) satellites, which carry C-band Synthetic Aperture Radar (CSAR) sensors that provide the richest freely available SAR data source so far, unprecedented in accuracy and coverage. Our SSM retrieval method, adapting well-established change detection algorithms, builds the first globally deployable soil moisture observation data set with 1-km resolution. This paper provides an algorithm formulation to be operated in data cube architectures and high-performance computing environments. It includes the novel dynamic Gaussian upscaling method for spatial upscaling of SAR imagery, harnessing its field-scale information and successfully mitigating effects from the SAR's high signal complexity. Also, a new regression-based approach for estimating the radar slope is defined, coping with Sentinel-1's inhomogeneity in spatial coverage. We employ the S-1 SSM algorithm on a 3-year S-1 data cube over Italy, obtaining a consistent set of model parameters and product masks, unperturbed by coverage discontinuities. An evaluation of therefrom generated S-1 SSM data, involving a 1-km soil water balance model over Umbria, yields high agreement over plains and agricultural areas, with low agreement over forests and strong topography. While positive biases during the growing season are detected, the excellent capability to capture small-scale soil moisture changes as from rainfall or irrigation is evident. The S-1 SSM is currently in preparation toward operational product dissemination in the Copernicus Global Land Service. Numéro de notice : A2019-108 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1109/TGRS.2018.2858004 Date de publication en ligne : 22/08/2018 En ligne : https://doi.org/10.1109/TGRS.2018.2858004 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=92425
in IEEE Transactions on geoscience and remote sensing > vol 57 n° 1 (January 2019) . - pp 520 - 539[article]Understanding of atmospheric systems with efficient numerical methods for observation and prediction / Lei-Ming Ma (2019)
PermalinkEnhanced local ionosphere model for multi-constellations single frequency precise point positioning applications: Egyptian case study / Emad El Manaily in Artificial satellites, vol 53 n° 4 (December 2018)
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PermalinkGIS approach to publishing commonfacilities plans of land consolidation in the Czech Republic / Arnošt Müller in Geodetski vestnik, vol 62 n° 4 (December 2018 - February 2019)
PermalinkWood density reduced while wood volume growth accelerated in Central European forests since 1870 / Hans Pretzsch in Forest ecology and management, vol 429 (1 December 2018)
PermalinkLa filiera foresta-legno francese tra potenziale di mitigazione dei cambiamenti climatici e necessità di adattamento / Philippe Delacote in Agriregionieuropa, anno 14 n° 54 (2018)
PermalinkGlobal IWV trends and variability in atmospheric reanalyses and GPS observations / Ana-Claudia Bernardes Parracho in Atmospheric chemistry and physics, vol 18 n° 22 ([01/11/2018])
PermalinkA hybrid ensemble learning method for tourist route recommendations based on geo-tagged social networks / Lin Wan in International journal of geographical information science IJGIS, vol 32 n° 11-12 (November - December 2018)
PermalinkReal-Time Precise Point Positioning (RTPPP) with raw observations and its application in real-time regional ionospheric VTEC modeling / Teng Liu in Journal of geodesy, vol 92 n° 11 (November 2018)
PermalinkThe impact of rainfall distribution patterns on hydrological and hydraulic response in arid regions: case study Medina, Saudi Arabia / Mohamed Abdulrazzak in Arabian Journal of Geosciences, vol 11 n° 21 (November 2018)
PermalinkMulti‐scale observations of atmospheric moisture variability in relation to heavy precipitating systems in the northwestern Mediterranean during HyMeX IOP12 / Samiro Khodayar in Quarterly Journal of the Royal Meteorological Society, vol 144 n° 717 (October 2018 Part B)
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