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Radar imaging of moving targets in foliage using multifrequency multiaperture polarimetric SAR / G. Wang in IEEE Transactions on geoscience and remote sensing, vol 41 n° 8 (August 2003)
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Titre : Radar imaging of moving targets in foliage using multifrequency multiaperture polarimetric SAR Type de document : Article/Communication Auteurs : G. Wang, Auteur ; X.G. Xia, Auteur ; V. Chen, Auteur Année de publication : 2003 Article en page(s) : pp 1755 - 1764 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image radar et applications
[Termes IGN] données polarimétriques
[Termes IGN] feuille (végétation)
[Termes IGN] forêt
[Termes IGN] image radar moirée
[Termes IGN] objet mobile
[Termes IGN] polarimétrie radar
[Termes IGN] polarisationRésumé : (Auteur) Because of the low signal-to-clutter ratio, it is a difficult problem to detect and image moving targets in foliage. In this paper, a multifrequency multiaperture polarimetric synthetic aperture radar (MFMA POLSAR) system is proposed for imaging of moving targets in foliage. The MFMA POLSAR extends the multifrequency antenna array SAR (MFSAR) system to multiple the polarizations. Full polarization is used in MFMA POLSAR to achieve an optimal polarization adaptive to the environment such that the images obtained by different apertures are of the best coherence that is used to obtain the highest accuracy of the phase estimation. It is also shown that the MFMA POLSAR cannot only accurately locate both the slow and the fast moving targets but also reveal moving targets in foliage. Numéro de notice : A2003-277 Affiliation des auteurs : non IGN Thématique : FORET/IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1109/TGRS.2003.813501 En ligne : https://doi.org/10.1109/TGRS.2003.813501 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=22572
in IEEE Transactions on geoscience and remote sensing > vol 41 n° 8 (August 2003) . - pp 1755 - 1764[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 065-03081 RAB Revue Centre de documentation En réserve L003 Disponible Land-cover change monitoring with classification trees using Landsat TM and ancillary data / J. Rogan in Photogrammetric Engineering & Remote Sensing, PERS, vol 69 n° 7 (July 2003)
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Titre : Land-cover change monitoring with classification trees using Landsat TM and ancillary data Type de document : Article/Communication Auteurs : J. Rogan, Auteur ; D. Stow, Auteur ; et al., Auteur Année de publication : 2003 Article en page(s) : pp 793 - 804 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection
[Termes IGN] classification ascendante hiérarchique
[Termes IGN] couvert végétal
[Termes IGN] détection de changement
[Termes IGN] données auxiliaires
[Termes IGN] flore locale
[Termes IGN] image Landsat-TM
[Termes IGN] occupation du sol
[Termes IGN] San DiegoRésumé : (Auteur) We monitored land-cover change in San Diego County (1990-1996) using multitemporal Landsat TM data. Change vectors of Knuth Thomas features were combined with stable multitemporal Knuth Thomas features and a suite of ancillary variables within a classification tree classifier. A combination of aerial photo-interpretation and field measurements yielded training and validation data. Maps of land-cover change were generated for three hierarchical levels of change classification of increasing detail: change vs. no-change; four classes representing broad increase and decrease classes; and nine classes distinguishing increases or decreases in tree canopy cover, shrub cover, and urban change, The multitemporal Kauth Thomas (both stable and change features representing brightness, greenness, and wetness) provided information for magnitude and direction of land-cover change. Overall accuracies of the land-cover change maps were high (72 to 92 percent). Ancillary variables representing elevation, fire history, and slope were most significant in mapping the most complicated level of land-cover change, contributing 15 percent to overall accuracy. Glassification trees have not previously been used operationally with -remotely sensed and ancillary data to map land-cover change at this level of thematic detail. Numéro de notice : A2003-155 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.14358/PERS.69.7.793 En ligne : https://doi.org/10.14358/PERS.69.7.793 Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=22451
in Photogrammetric Engineering & Remote Sensing, PERS > vol 69 n° 7 (July 2003) . - pp 793 - 804[article]Multitemporal repeat-pass SAR interferometry of boreal forests / J. Askne in IEEE Transactions on geoscience and remote sensing, vol 41 n° 7 (July 2003)
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Titre : Multitemporal repeat-pass SAR interferometry of boreal forests Type de document : Article/Communication Auteurs : J. Askne, Auteur ; M. Santoro, Auteur ; G. Smith, Auteur ; J.E.S. Fransson, Auteur Année de publication : 2003 Article en page(s) : pp 1540 - 1550 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image radar et applications
[Termes IGN] bande L
[Termes IGN] données multitemporelles
[Termes IGN] erreur moyenne quadratique
[Termes IGN] ERS
[Termes IGN] estimation statistique
[Termes IGN] forêt boréale
[Termes IGN] image radar moirée
[Termes IGN] interféromètrie par radar à antenne synthétique
[Termes IGN] JERS
[Termes IGN] masse végétale
[Termes IGN] modélisation
[Termes IGN] rétrodiffusion
[Termes IGN] troncRésumé : (Auteur) Multitemporal European Remote Sensing satellites 1 and 2 (ERS1/2) and the Japanese Earth Resources Satellite 1 (JERS1) interferometric synthetic aperture radar (InSAR) data from a boreal forest test site in Sweden (stem volumes up to 335 m/ha, equivalent to aboveground dry biomass of ~200 tons/ha) are studied in order to estimate stem volume using coherence and backscatter. The changes of JERS1 backscatter and ERS1/2 tandem coherence between images are consistent over the area studied, in contrast to ERS1/2 backscatter. A modelbased regression analysis has been performed, and the use of the model for inversion is discussed and compared with other approaches found in the literature. The model parameters are discussed in terms of their relation to wind speed and temperature. Results from the different acquisitions are combined to improve the stem volume estimation. The accuracy in terms of rms error (RMSE) for standwise estimated stem volume is 310 m/ha using ERS1/2 coherence. Using backscatter and coherence from JERS1 we obtain an RMSE of 33035 m/ha. Finally, conditions for accurate retrieval of stem volume using multitemporal InSAR observations are discussed. We conclude that G and Lband repeatpass InSAR can provide stem volume estimates in boreal forests with accuracies similar to those of standard in situ measurements. Numéro de notice : A2003-209 Affiliation des auteurs : non IGN Thématique : FORET/IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1109/TGRS.2005.846878 En ligne : https://doi.org/10.1109/TGRS.2005.846878 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=22505
in IEEE Transactions on geoscience and remote sensing > vol 41 n° 7 (July 2003) . - pp 1540 - 1550[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 065-03071 RAB Revue Centre de documentation En réserve L003 Disponible Applications and research using remote sensing for rangeland management / E.R. Hunt in Photogrammetric Engineering & Remote Sensing, PERS, vol 69 n° 6 (June 2003)
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Titre : Applications and research using remote sensing for rangeland management Type de document : Article/Communication Auteurs : E.R. Hunt, Auteur ; James H. Everitt, Auteur ; J.C. Ritchie, Auteur ; et al., Auteur Année de publication : 2003 Article en page(s) : pp 675 - 693 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection
[Termes IGN] couvert végétal
[Termes IGN] données lidar
[Termes IGN] écosystème
[Termes IGN] flore locale
[Termes IGN] image Landsat
[Termes IGN] image NOAA-AVHRR
[Termes IGN] Normalized Difference Vegetation Index
[Termes IGN] paturage
[Termes IGN] prairie
[Termes IGN] rugosité
[Termes IGN] surveillance écologique
[Termes IGN] système d'information géographique
[Termes IGN] télédétection aérienneRésumé : (Auteur) Rangelands are grasslands, shrublands, and savannas used by wildlife for habitat and livestock in order to produce food and fiber. Assessment and monitoring of rangelands are currently based on comparing the plant species present in relation to an expected successional end-state defined by the ecological site. In the future, assessment and monitoring may be based on indicators of ecosystem health, including sustainability of soil, sustainability of plant production, and presence of invasive weed species. USDA Agricultural Research Service (ARS) scientists are actively engaged in developing quantitative, repeatable, and low-cost methods to measure indicators of ecosystern health using remote sensing. Noxious weed infestations can be determined by careful selection of the spatial resolution, spectral bands, and timing of image acquisition. Rangeland productivity can be estimated with either Landsat or Advanced Very High Resolution Radiometer data using models of gross primary production based on radiation use efficiency. Lidar measurements are useful for canopy structure and soil roughness, indicating susceptibility to erosion. The value of remote sensing for rangeland management depends in part on combining the imagery with other spatial data within geographic information systems. Finally, ARS scientists are developing the knowledge on which future rangeland assessment and monitoring tools will be developed. Numéro de notice : A2003-115 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.14358/PERS.69.6.675 En ligne : https://doi.org/10.14358/PERS.69.6.675 Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=22411
in Photogrammetric Engineering & Remote Sensing, PERS > vol 69 n° 6 (June 2003) . - pp 675 - 693[article]Remote sensing for crop management / P.J. Pinter in Photogrammetric Engineering & Remote Sensing, PERS, vol 69 n° 6 (June 2003)
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Titre : Remote sensing for crop management Type de document : Article/Communication Auteurs : P.J. Pinter, Auteur ; J.L. Hatfield, Auteur ; J.S. Schepers, Auteur ; et al., Auteur Année de publication : 2003 Article en page(s) : pp 647 - 664 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection
[Termes IGN] cultures
[Termes IGN] Etats-Unis
[Termes IGN] exitance énergétique
[Termes IGN] indice de végétation
[Termes IGN] pesticide
[Termes IGN] réflectance du sol
[Termes IGN] réflectance végétale
[Termes IGN] rendement agricole
[Termes IGN] stress hydrique
[Termes IGN] surveillance de la végétationRésumé : (Auteur) Scientists with the Agricultural Research Service (ARS) and various government agencies and private institutions have provided a great deal of fundamental information relating spectral reflectance and thermal emittance properties of soils and crops to their agronomic and biophysical characteristics. This knowledge has facilitated the development and use of various remote sensing methods for non-destructive monitoring of plant growth and development and for the detection of many environmental stresses which limit plant productivity. Coupled with rapid advances in computing and positionlocating technologies, remote sensing from ground-, air-, and space-based platforms is now capable of providing detailed spatial and temporal information on plant response to their local environment that is needed for site specific agricultural management approaches. This manuscript, which emphasizes contributions by ARS researchers, reviews the biophysical basis of remote sensing ; examines approaches that have been developed, refined, and tested for management of water, nutrients, and pests in agricultural crops ; and assesses the role of remote sensing in yield prediction. It concludes with a discussion of challenges facing remote sensing in the future. Numéro de notice : A2003-113 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.14358/PERS.69.6.647 En ligne : https://doi.org/10.14358/PERS.69.6.647 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=22409
in Photogrammetric Engineering & Remote Sensing, PERS > vol 69 n° 6 (June 2003) . - pp 647 - 664[article]Remote sensing techniques to assess water quality / J.C. Ritchie in Photogrammetric Engineering & Remote Sensing, PERS, vol 69 n° 6 (June 2003)
PermalinkAnalyse diachronique de la végétation d'un îlot marin protégé / Françoise Gourmelon in Photo interprétation, vol 39 n° 2 (Juin 2003)
PermalinkAnalysis of hyperspectral data for estimation of temperate forest canopy nitrogen concentration: Comparison between an Airborne (AVIRIS) and a spaceborne (Hyperion) sensor / M.L. Smith in IEEE Transactions on geoscience and remote sensing, vol 41 n° 6 (June 2003)
PermalinkProcessing Hyperion and ALI for forest classification / D.G. Goodenough in IEEE Transactions on geoscience and remote sensing, vol 41 n° 6 (June 2003)
PermalinkAnalyse de l'évolution de la végétation aux Iles Loyauté (Nouvelle-Calédonie) par la méthode des vecteurs de changements combinée à une classification / J. Vallee in Bulletin [Société Française de Photogrammétrie et Télédétection], n° 170 (Avril 2003)
PermalinkDes données fiables pour des indicateurs pertinents : les données de l'IFN / Catherine Cluzeau in Forêt entreprise, n° 150 (2003/2)
PermalinkLes indicateurs de gestion forestière durable à l'échelle nationale / Nabila Hamza ; Gérôme Pignard in Forêt entreprise, n° 150 (2003/2)
PermalinkMountain pine beetle red-attack forest damage classification using stratified Landsat TM data in British Columbia, Canada / Steven E. Franklin in Photogrammetric Engineering & Remote Sensing, PERS, vol 69 n° 3 (March 2003)
PermalinkThe potential of virtual reality technology for analysis of remotely sensed data: a Lidar case study / T. Warner in Geocarto international, vol 18 n° 1 (March - May 2003)
PermalinkTrue ortho-image production for forested areas from large-scale aerial photographs / Y. Sheng in Photogrammetric Engineering & Remote Sensing, PERS, vol 69 n° 3 (March 2003)
PermalinkPermalinkPermalinkComptage automatique d'oliviers par traitement d'images satellites [très] haute résolution / Anaïs Hyenne (2003)
PermalinkContribution to the syntaxonomic knowledge of the Quercus ilex L. woods of the Central European Mediterranean Basin / Edoardo Biondi in Fitosociologia, vol 40 n° 1 (2003)
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PermalinkDatos sobre la vegetación de la clase Quercetea ilicis en Cerdeña / Salvador Rivas-Martinez in Fitosociologia, vol 40 n° 1 (2003)
PermalinkLa forêt luxembourgeoise en chiffres : Résultats de l'Inventaire Forestier National au Grand-Duché de Luxembourg 1998 - 2000 / Jacques Rondeux (2003)
PermalinkPermalinkPermalinkProceedings of the fifth Annual Forest Inventory and Analysis Symposium, 2003 November 18-20, New Orleans, Louisiana / Ronald E. McRoberts (2003)
PermalinkRapport sur la protection contre les incendies de forêt après les feux de l'été 2003 / Franck Perriez (décembre 2003)
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