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Southern Africa as a remote sensing test bed : the SAFARI 2000 special issue overview / J.L. Privette in International Journal of Remote Sensing IJRS, vol 26 n° 19 (October 2005)  

Public [article]  inInternational Journal of Remote Sensing IJRS > vol 26 n° 19 (October 2005) . - pp 4141 - 4158 Titre : Southern Africa as a remote sensing test bed : the SAFARI 2000 special issue overview Type de document : Article/Communication Auteurs : J.L. Privette, Auteur ; D. Roy, Auteur Année de publication : 2005 Article en page(s) : pp 4141 - 4158 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection [Termes IGN] Afrique australe [Termes IGN] capteur (télédétection) [Termes IGN] environnement [Termes IGN] EOS [Termes IGN] EOS-AM1 [Termes IGN] hydrographie [Termes IGN] incendie [Termes IGN] validité des données Résumé : (Auteur) NASA's flagship Earth Observing System (EOS) Terra satellite was launched in 1999 and began sensing in March 2000 coincident with the first major field campaign of the Southern Africa Regional Science Initiative (SAFARI 2000). Terra's five sensors were used to support SAFARI 2000 studies on the southern African environment, and SAFARI 2000's ground, aircraft and independent satellite data sets were used in turn to validate and improve the remote sensing products derived from Terra. In this article, we review southern Africa's natural and cultural features that we believe formed an optimal environment in which to test the EOS program (including new sensors, products, validation, scientific research, education and outreach). Through the course of the text, we reference and summarize the articles in the SAFARI 2000 Special Issue to highlight the natural links between remote sensing science and the subcontinent's characteristics. We also note contemporary forces of change in the southern Africa landscape whose impacts will challenge the remote monitoring capabilities of future sensors and scientists. The article concludes with a brief description of SAFARI 2000 data resources and access provisions. Numéro de notice : A2005-443 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/01431160500113401 En ligne : https://doi.org/10.1080/01431160500113401 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=27579 [article]

Exemplaires(1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
080-05191	RAB	Revue	Centre de documentation	En réserve L003	Exclu du prêt

Result from EO-1 experiment: a comparative study of earth observing-1 Advanced Land Imager (ALI) and Landsat ETM+ data for land cover mapping in the Okavango delta, Botswana / A.L. Neunschwander in International Journal of Remote Sensing IJRS, vol 26 n° 19 (October 2005)  

Public [article]  inInternational Journal of Remote Sensing IJRS > vol 26 n° 19 (October 2005) . - pp 4321 - 4337 Titre : Result from EO-1 experiment: a comparative study of earth observing-1 Advanced Land Imager (ALI) and Landsat ETM+ data for land cover mapping in the Okavango delta, Botswana Type de document : Article/Communication Auteurs : A.L. Neunschwander, Auteur ; Melba M. Crawford, Auteur ; S. Ringrose, Auteur Année de publication : 2005 Article en page(s) : pp 4321 - 4337 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image optique [Termes IGN] analyse comparative [Termes IGN] Botswana [Termes IGN] carte d'occupation du sol [Termes IGN] delta [Termes IGN] géomorphologie locale [Termes IGN] image EO1-ALI [Termes IGN] image Landsat-ETM+ [Termes IGN] inondation [Termes IGN] rapport signal sur bruit Résumé : (Auteur) The Earth Observing-1 (EO-1) satellite acquired a sequence of data in 2001 and 2002 that highlighted the annual flooding of the lower Okavango Delta. The data were collected as part of the calibration/validation programme for the Advanced Land Imager (ALI) sensor on the NASA EO-1 satellite. The primary purpose of this study was to compare the capability of ALI to that of Landsat ETM + for large-scale mapping applications in the Okavango Delta. While the extent and inaccessibility of many areas of the Delta make application of remote sensing attractive, the availability of data with adequate spatial and spectral resolution has limited the characterization of the complex patterns of land cover and geomorphology in the Delta. Initial analysis of the ALI data via supervised classification clearly showed macro-flood features, delineation of downstream channel flow areas, and lateral-downstream inundation of the floodplain. These patterns and the proportions of flooding of the channel compared to that of the floodplain (impoundment) varied annually, from the wetter seasonal swamps through the drier seasonal and occasional swamps. Consistently higher classification accuracies achieved using ALI data relative to ETM + data are attributed to the higher signal-to-noise ratio and the increased dynamic range of the ALI data. Numéro de notice : A2005-444 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/01431160500112759 En ligne : https://doi.org/10.1080/01431160500112759 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=27580 [article]

Exemplaires(1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
080-05191	RAB	Revue	Centre de documentation	En réserve L003	Exclu du prêt