Détail de l'auteur
Auteur J. Rogan |
Documents disponibles écrits par cet auteur (3)
Ajouter le résultat dans votre panier Affiner la recherche Interroger des sources externes
Measuring the physical composition of urban morphology using multiple endmember spectral mixture models / T. Rashed in Photogrammetric Engineering & Remote Sensing, PERS, vol 69 n° 9 (September 2003)
[article]
Titre : Measuring the physical composition of urban morphology using multiple endmember spectral mixture models Type de document : Article/Communication Auteurs : T. Rashed, Auteur ; J.R. Weeks, Auteur ; J. Rogan, Auteur ; R.W. Powell, Auteur ; D.A. Roberts, Auteur Année de publication : 2003 Article en page(s) : pp 1011 - 1020 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image optique
[Termes IGN] analyse de mélange spectral d’extrémités multiples
[Termes IGN] erreur moyenne quadratique
[Termes IGN] image Landsat-TM
[Termes IGN] Los Angeles
[Termes IGN] méthode robuste
[Termes IGN] morphologie mathématique
[Termes IGN] pixelNuméro de notice : A2003-231 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.14358/PERS.69.9.1011 En ligne : https://doi.org/10.14358/PERS.69.9.1011 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=22526
in Photogrammetric Engineering & Remote Sensing, PERS > vol 69 n° 9 (September 2003) . - pp 1011 - 1020[article]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)
[article]
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]Mapping wildfire burns severity in southern California forests and shrub lands using enhanced Thematic Mapper imagery / J. Rogan in Geocarto international, vol 16 n° 4 (December 2001 - February 2002)
[article]
Titre : Mapping wildfire burns severity in southern California forests and shrub lands using enhanced Thematic Mapper imagery Type de document : Article/Communication Auteurs : J. Rogan, Auteur ; Janet Franklin, Auteur Année de publication : 2001 Article en page(s) : pp 89 - 99 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection
[Termes IGN] analyse multibande
[Termes IGN] carte de la végétation
[Termes IGN] cartographie thématique
[Termes IGN] classification
[Termes IGN] image Landsat-ETM+
[Termes IGN] incendie de forêt
[Termes IGN] risque naturelRésumé : (Auteur) Wildfire is a major disturbance agent in Mediterranean Type Ecosystems (MTEs). Providing reliable, quantitative information on the area of burns and the level of damage caused is therefore important both for guiding resource management and global change monitoring. Previous studies have successfully mapped burn severity using remote sensing, but reliable accuracy has yet to be gained using standard methods over different vegetation types. The objective of this research was to classify burn severity across several vegetation types using Landsat ETM imagery in two areas affected by wildfire in southern California in June 1999. Spectral mixture analysis (SMA) using four reference endmembers (vegetation, soil, shade, non-photosynthetic vegetation) and a single (charcoal-ash) image endmember were used to enhance imagery prior to burn severity classification using decision trees. SMA provided a robust technique for enhancing fire-affected areas due to its ability to extract sub~pixel information and minimize the effects of topography on single date satellite data. Overall kappa classification accuracy results were high (0. 71 and 0.85, respectively)jor the burned areas, using five canopy consumption classes. Individual severity class accuracies ranged from 0.5 to 0.94. Numéro de notice : A2002-041 Affiliation des auteurs : non IGN Thématique : FORET/IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/10106040108542218 En ligne : https://doi.org/10.1080/10106040108542218 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=21958
in Geocarto international > vol 16 n° 4 (December 2001 - February 2002) . - pp 89 - 99[article]Réservation
Réserver ce documentExemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 059-01041 RAB Revue Centre de documentation En réserve L003 Disponible