Centre de documentation
scientifique

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)  

Public [article]  inIEEE Transactions on geoscience and remote sensing > vol 57 n° 1 (January 2019) . - pp 520 - 539 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 météorologique Résumé : (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 [article]

A WebGIS for the dissemination of information on historical landslides and floods in Umbria, Italy / P. Salvati in Geoinformatica, vol 13 n° 3 (September 2009)  

Public [article]  inGeoinformatica > vol 13 n° 3 (September 2009) . - pp 305 - 322 Titre : A WebGIS for the dissemination of information on historical landslides and floods in Umbria, Italy Type de document : Article/Communication Auteurs : P. Salvati, Auteur ; Vinicio Balducci, Auteur ; C. Bianchi, Auteur ; et al., Auteur Année de publication : 2009 Article en page(s) : pp 305 - 322 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique [Termes IGN] diffusion de données [Termes IGN] effondrement de terrain [Termes IGN] inondation [Termes IGN] Moyen-Age [Termes IGN] Ombrie (Italie) [Termes IGN] période contemporaine [Termes IGN] risque naturel [Termes IGN] Temps Modernes [Termes IGN] WebSIG Résumé : (Auteur) A web site was designed to disseminate new information on historical landslides and floods in Umbria, central Italy. The historical information was compiled through a thorough review of existing catalogues of historical landslide and flood events, supplemented by an extensive search of local historical archives and chronicles, for the period before 1900. The new catalogue lists 1983 landslide events in the period from 1139 to 2001, and 1956 flood events in the period from 860 to 2001. In the considered period, in Umbria there were at least 1,531 sites affected one or more times by landslides, and at least 1,071 sites affected one or more times by inundations. The seasonal distribution of landslides and inundations was found different before and after 1900, most probably because of incompleteness of the historical record prior to 1900. WebGIS technology was used to disseminate the geographical and thematic information on historical landslides and floods in Umbria. The GIS-based web site is aimed at a diversified audience of experts and private citizens seeking information on geo-hydrological hazards in Umbria. Numéro de notice : A2009-254 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1007/s10707-008-0072-1 En ligne : https://doi.org/10.1007/s10707-008-0072-1 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=29884 [article]

Exemplaires(1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
057-09031	RAB	Revue	Centre de documentation	En réserve L003	Disponible

Un exemple de gestion collective en région Ombrie : le bois de la Marzolana / Anonyme in Forêt méditerranéenne, vol 29 n° 1 (mars 2008)  

Public [article]  inForêt méditerranéenne > vol 29 n° 1 (mars 2008) . - p. 47-52 Titre : Un exemple de gestion collective en région Ombrie : le bois de la Marzolana Type de document : Article/Communication Auteurs : Anonyme, Auteur Année de publication : 2008 Article en page(s) : p. 47-52 Note générale : Organisation et historique de l'administration italienne, p. 50. Aspects historiques et différences dans les politiques forestières italiennes et françaises, p. 52. Langues : Français (fre) Descripteur : [Termes IGN] gestion forestière [Termes IGN] Ombrie (Italie) Mots-clés libres : politique forestière  gestion forestière  Ombrie  San Arcangelo  Lac Trasimène  Marzolana  Italie Numéro de notice : A2008-663 Affiliation des auteurs : non IGN Thématique : FORET Nature : Article DOI : sans En ligne : https://www.foret-mediterraneenne.org/upload/biblio/FORET_MED_2008_1_47-52.pdf Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=70098 [article]

Exemplaires(1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
IFN-DIR-P000040	PER	Revue	Nogent-sur-Vernisson	Archives périodiques	Exclu du prêt