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Intertidal topography mapping using the waterline method from Sentinel-1 & -2 images: The examples of Arcachon and Veys Bays in France / Edward Salameh in ISPRS Journal of photogrammetry and remote sensing, vol 163 (May 2020)
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Titre : Intertidal topography mapping using the waterline method from Sentinel-1 & -2 images: The examples of Arcachon and Veys Bays in France Type de document : Article/Communication Auteurs : Edward Salameh, Auteur ; Frédéric Frappart, Auteur ; Imen Turki, Auteur ; Benoit Laignel, Auteur Année de publication : 2020 Article en page(s) : pp 98 - 120 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image mixte
[Termes descripteurs IGN] aménagement du littoral
[Termes descripteurs IGN] Arcachon (bassin d')
[Termes descripteurs IGN] carte topographique
[Termes descripteurs IGN] Cotentin
[Termes descripteurs IGN] estran
[Termes descripteurs IGN] France (administrative)
[Termes descripteurs IGN] hydrodynamique
[Termes descripteurs IGN] image Sentinel-MSI
[Termes descripteurs IGN] image Sentinel-SAR
[Termes descripteurs IGN] modèle numérique de surface
[Termes descripteurs IGN] niveau de l'eau
[Termes descripteurs IGN] sédiment
[Termes descripteurs IGN] télédétection spatiale
[Termes descripteurs IGN] trait de côte
[Termes descripteurs IGN] zone tamponRésumé : (auteur) Intertidal flats lying as a buffer zone between land and sea provide critical services including protection against storm surges and coastal flooding. These environments are characterized by a continuous redistribution of sediment and changes in topography. Sea level rise, anthropogenic pressures, and their related stressors have a considerable impact on these areas and are expected to put them under more stress; hence the increased need for frequent and updated topography maps. Comparing to traditional surveying approaches, spaceborne remote sensing is able to provide topography maps more frequently with a lower cost and a higher coverage. The latter is currently considered as an established tool for measuring intertidal topography. In this study, an improved approach of the waterline method was developed to derive intertidal Digital Elevation Models (DEMs). The changes include a faster, more efficient and quasi-automatic detection and post-processing of waterlines. The edge detection technique consists in combining a k-means based segmentation and an active contouring procedure. This method was designed to generate closed contours in order to enable an automatization of the post-processing of the extracted waterlines. The waterlines were extracted from Sentinel-1 and Sentinel-2 images for two bays located on the French Coast: the Arcachon lagoon and the Bay of Veys. DEMs were generated for the Arcachon Bay between 2015 and 2018, and for the Bay of Veys between 2016 and 2018 using satellite acquisitions made during summer (low storm activity period). The comparison of the generated DEMs with lidar observations showed an error of about 19–25 cm. This study also demonstrated that the waterline method applied to Sentinel images is suitable for monitoring the morpho-sedimentary evolution in intertidal areas. By comparing the DEMs generated between 2016 and 2018, the Arcachon Bay and the Bay of Veys experienced net volume losses of 1.12 × 106 m3 and 0.70 × 106 m3 respectively. The generated DEMs provide useful and needed information for several scientific applications (e.g., sediment balance, hydrodynamic modelling), but also for authorities and stakeholders for coastal management and implementation of ecosystem protection policies. Numéro de notice : A2020-138 Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.isprsjprs.2020.03.003 date de publication en ligne : 13/03/2020 En ligne : https://doi.org/10.1016/j.isprsjprs.2020.03.003 Format de la ressource électronique : url article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=94756
in ISPRS Journal of photogrammetry and remote sensing > vol 163 (May 2020) . - pp 98 - 120[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 081-2020051 SL Revue Centre de documentation Revues en salle Disponible 081-2020053 DEP-RECP Revue MATIS Dépôt en unité Exclu du prêt 081-2020052 DEP-RECF Revue Nancy Dépôt en unité Exclu du prêt Le sol s'affaisse, l'eau monte [Delta du Gange-Brahmapoutre-Meghna] / Marielle Mayo in Géomètre, n° 2179 (avril 2020)
[article]
Titre : Le sol s'affaisse, l'eau monte [Delta du Gange-Brahmapoutre-Meghna] Type de document : Article/Communication Auteurs : Marielle Mayo, Auteur Année de publication : 2020 Article en page(s) : pp 46 - 48 Langues : Français (fre) Descripteur : [Vedettes matières IGN] Applications de télédétection
[Termes descripteurs IGN] changement climatique
[Termes descripteurs IGN] delta
[Termes descripteurs IGN] effondrement de terrain
[Termes descripteurs IGN] Gange (fleuve)
[Termes descripteurs IGN] géomorphologie locale
[Termes descripteurs IGN] hydrodynamique
[Termes descripteurs IGN] image Envisat
[Termes descripteurs IGN] interféromètrie par radar à antenne synthétique
[Termes descripteurs IGN] méthode robuste
[Termes descripteurs IGN] montée du niveau de la mer
[Termes descripteurs IGN] sédiment
[Termes descripteurs IGN] submersion marine
[Termes descripteurs IGN] subsidenceRésumé : (Auteur) Pour la première fois, une étude fondée sur une analyse robuste des données géospatiales offre une estimation fiable de la contribution de la subsidence du delta à la montée des eaux. Numéro de notice : A2020-180 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtSansCL DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=94848
in Géomètre > n° 2179 (avril 2020) . - pp 46 - 48[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 063-2020041 SL Revue Centre de documentation Revues en salle Disponible
Titre : The Use of remote sensing in hydrology Type de document : Monographie Auteurs : Frédéric Frappart, Editeur scientifique Editeur : Bâle [Suisse] : Multidisciplinary Digital Publishing Institute MDPI Année de publication : 2018 Importance : 258 p. Format : 17 x 25 cm ISBN/ISSN/EAN : 978-3-03842-910-4 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection
[Termes descripteurs IGN] capteur spatial
[Termes descripteurs IGN] carte hydrographique
[Termes descripteurs IGN] évapotranspiration
[Termes descripteurs IGN] humidité du sol
[Termes descripteurs IGN] hydrodynamique
[Termes descripteurs IGN] hydrologie
[Termes descripteurs IGN] image Cryosat
[Termes descripteurs IGN] image Sentinel-SAR
[Termes descripteurs IGN] inondation
[Termes descripteurs IGN] modèle hydrographique
[Termes descripteurs IGN] précipitation
[Termes descripteurs IGN] stockage
[Termes descripteurs IGN] surveillance hydrologiqueRésumé : (éditeur) Remotely sensed data are nowadays commonly used for regional/global monitoring of hydrological variables including soil moisture, rainfall, water levels, flood extent, evapotranspiration or land water storage, as well as the forcing, calibration and assimilation into hydrodynamic, hydrological and hydrometeorological models. In the years to come, recent and future satellite sensors, some of them specifically designed for hydrological purposes, will provide systematic observations of hydrological parameters (e.g., surface and sub-surface storage and flux) at high spatial and temporal resolutions. This will offer new applications for the hydrological community. This book presents reviews and recent advances of general interest regarding the use of remote sensing for hydrology. The chapters are related to any hydrological reservoir (e.g., surface storage, soil moisture, groundwater, etc.) or flux (e.g., rainfall, evapotranspiration, discharge, etc.), the integration of satellite data into hydrological models, and the improvements to hydrology that can be expected from future satellite missions. Numéro de notice : 25962 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Monographie DOI : 10.3390/books978-3-03842-910-4 En ligne : https://doi.org/10.3390/books978-3-03842-910-4 Format de la ressource électronique : URL Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=96538 Toward a systematic integration of optical remote sensing for inland waters studies / Vincent Maurice Nouchi (2018)
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Titre : Toward a systematic integration of optical remote sensing for inland waters studies Type de document : Thèse/HDR Auteurs : Vincent Maurice Nouchi, Auteur ; Alfred Johny Wüest, Auteur ; Damien Bouffard, Auteur Editeur : Lausanne : Ecole Polytechnique Fédérale de Lausanne EPFL Année de publication : 2018 Importance : 122 p. Format : 21 x 30 cm Note générale : bibliographie
Thèse présentée à l'Ecole Polytechnique Fédérale de Lausanne pour l'obtention du grade de Docteur ès SciencesLangues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection
[Termes descripteurs IGN] aide à la décision
[Termes descripteurs IGN] calcaire
[Termes descripteurs IGN] correction atmosphérique
[Termes descripteurs IGN] décomposition empirique du signal
[Termes descripteurs IGN] hydrodynamique
[Termes descripteurs IGN] image Landsat-8
[Termes descripteurs IGN] image MODIS
[Termes descripteurs IGN] image Sentinel-MSI
[Termes descripteurs IGN] LEMAN (LAC)
[Termes descripteurs IGN] modèle dynamique
[Termes descripteurs IGN] précipitation
[Termes descripteurs IGN] réflectance
[Termes descripteurs IGN] variation saisonnièreRésumé : (auteur) Freshwater resources play a central role in social and economic development of modern civilisations,
yet their value is often underestimated and neglected in developed countries. In fact, freshwater habitats are facing unprecedented threat because of human activities, and it is necessary to provide reliable water quality indicators to monitor the response of aquatic systems. In this context, remote sensing has a great potential to provide a complementary source of data for monitoring and understanding the processes involved in inland waters around the world at fine temporal and spatial resolutions. The scientific approach adopted in this thesis is based on the integration of complementary sources of information provided by state-of-the-art monitoring methods to foster our understanding of freshwater habitats. Specifically, we demonstrate the additional value provided by combining complementary sensors with bio-geochemical measurements and hydrodynamic models, using a rare event in Lake Geneva which got a wide public attention in local newspapers: a calcite precipitation event. The principal focus of the remote-sensing community has recently been directed towards very turbid waters in order to address the challenges involved with the retrieval of mixed constituent concentrations. In this thesis, I highlight some important challenges relative to clearer waters which also require further attention from the community. Specifically, I provide a solution to account for vertical nonuniformities of water constituent concentrations using simple approximation models in Lake Geneva. Finally, I provide a comprehensive comparison between state-of-the-art atmospheric correction methods, which are presumably relevant for inland water monitoring and applicable to the new constellation of remote sensors. The aim is to provide reliable recommendations to help forthcoming studies to apply the most suited procedure to their investigation.Note de contenu : 1- Introduction
2- Resolving biogeochemical processes in lakes using remote sensing
3- Effects of non-uniform vertical constituent profiles on remote-sensing reflectance of oligo- to mesotrophic lakes
4- Inter-comparison of atmospheric corrections for S-2 observations over Lake Geneva
5- ConclusionNuméro de notice : 25790 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Thèse étrangère Note de thèse : Thèse de Doctorat : Sciences : Lausanne : Suisse : 2018 En ligne : https://infoscience.epfl.ch/record/255664?ln=fr Format de la ressource électronique : URL Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=95007 Integrating Landsat-7 imagery with physics-based models for quantitative mapping of coastal waters near river discharges / N. Pahlevan in Photogrammetric Engineering & Remote Sensing, PERS, vol 78 n° 11 (November 2012)
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Titre : Integrating Landsat-7 imagery with physics-based models for quantitative mapping of coastal waters near river discharges Type de document : Article/Communication Auteurs : N. Pahlevan, Auteur ; A. Garrett, Auteur ; et al., Auteur Année de publication : 2012 Article en page(s) : pp 1163 - 1174 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image optique
[Termes descripteurs IGN] eaux côtières
[Termes descripteurs IGN] hydrodynamique
[Termes descripteurs IGN] image Landsat
[Termes descripteurs IGN] image Landsat-ETM+
[Termes descripteurs IGN] matière organique
[Termes descripteurs IGN] modèle hydrographique
[Termes descripteurs IGN] sédimentRésumé : (Auteur) Remote sensing has traditionally been used to retrieve water constituents by establishing a relationship between in situ measured quantities and image-derived products. Motivated by the dramatically improved potential of the Landsat Data Continuity Mission (ldcm), this paper describes a different approach for water constituent retrieval where both thermal and visible spectral bands of the Enhanced Thematic Mapper Plus (ETM+) instrument on board Landsat-7 are utilized. In this effort, Landsat data is integrated with a 3D hydrodynamic model to obtain profiles of particles and dissolved matter in the near shore zone in the vicinity of two river discharges. The procedure is based upon perform-ing many hydrodynamic simulations by adjusting input environmental/physical variables and generating Look-Up-Tables (LUTs). The best match, obtained using optimization, demonstrated an average root-mean-squared-error (RMSE) of 0.68 percent, i.e., 0.0068 reflectance units, calculated over the two river plumes. It is concluded that calibrating a physics-based model using the Landsat-7 imagery can provide a more lucid insight into the dynamics of spatially non-uniform waters. Numéro de notice : A2012-584 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.14358/PERS.78.11.1163 En ligne : https://doi.org/10.14358/PERS.78.11.1163 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=32030
in Photogrammetric Engineering & Remote Sensing, PERS > vol 78 n° 11 (November 2012) . - pp 1163 - 1174[article]Réservation
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