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Estimate of net primary productivity of aquatic vegetation of the Amazon floodplain using Radarsat and JERS-1 / M. Costa in International Journal of Remote Sensing IJRS, vol 26 n° 20 (October 2005)  

Public [article]  inInternational Journal of Remote Sensing IJRS > vol 26 n° 20 (October 2005) . - pp 4527 - 4536 Titre : Estimate of net primary productivity of aquatic vegetation of the Amazon floodplain using Radarsat and JERS-1 Type de document : Article/Communication Auteurs : M. Costa, Auteur Année de publication : 2005 Article en page(s) : pp 4527 - 4536 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection [Termes IGN] Amazone (fleuve) [Termes IGN] image JERS [Termes IGN] image radar [Termes IGN] image Radarsat [Termes IGN] macrophyte [Termes IGN] masse végétale [Termes IGN] modèle conceptuel de données localisées [Termes IGN] productivité Résumé : (Auteur) Synthetic aperture radar images, combined with field measurements, were used to estimate net primary productivity (NPP) of aquatic vegetation in the lower Amazon. Input data for a NPP model are (i) the total biomass of aquatic vegetation, determined by radar imagery and field measurements and (ii) the area occupied by aquatic vegetation, determined from radar imagery. After correction for monthly biomass losses, the NPP of one growth cycle of aquatic vegetation was calculated in the image domain. The total net primary productivity of Hymenachne amplexicaitles, the dominant aquatic vegetation in the area, was on average 19 x 1011 gC yr-1 for the entire area. Spatially, lower values of produced organic carbon ( 5000 g Cm-2 yr-1) in areas closer to the Amazon River where the availability and influence of nutrient-rich water is greater. Numéro de notice : A2005-465 Affiliation des auteurs : non IGN Thématique : FORET/IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/01431160500213433 En ligne : https://doi.org/10.1080/01431160500213433 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=27601 [article]

Exemplaires(1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
080-05201	RAB	Revue	Centre de documentation	En réserve L003	Exclu du prêt

Recognition of gypsum geohorizons in the Sivas Basin (Turkey) using ASTER and Landsat ETM+ images / K.S. Kavak in International Journal of Remote Sensing IJRS, vol 26 n° 20 (October 2005)  

Public [article]  inInternational Journal of Remote Sensing IJRS > vol 26 n° 20 (October 2005) . - pp 4583 - 4596 Titre : Recognition of gypsum geohorizons in the Sivas Basin (Turkey) using ASTER and Landsat ETM+ images Type de document : Article/Communication Auteurs : K.S. Kavak, Auteur Année de publication : 2005 Article en page(s) : pp 4583 - 4596 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection [Termes IGN] Ankara (Turquie) [Termes IGN] fusion d'images [Termes IGN] gypse [Termes IGN] image Landsat-ETM+ [Termes IGN] image Terra-ASTER [Termes IGN] tectonique [Termes IGN] transformation de Brovey Résumé : (Auteur) The Tertiary Sivas Basin contains widespread, tectonically deformed deposits of massive Oligocene gypsum. This unit is one of the most important factors controlling the tectono-stratigraphic evolution of the basin insofar as these deposits are interpreted as décollement levels. As a considerable fold and thrust belt, the Sivas Basin also has a remarkable structural expression within these evaporite deposits, as seen in satellite images aided by colour composites. Because of the and climatic conditions of the region, the basin provides ease of interpretation geologically in terms of the synoptic-view capability of broad-band multispectral data sets, such as ASTER and Landsat ETM+. In this study, various processing methods-such as data fusion and decorrelation stretching-were applied to highlight Oligocene gypsum deposits of the basin. Numéro de notice : A2005-466 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/01431160500185607 En ligne : https://doi.org/10.1080/01431160500185607 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=27602 [article]

Exemplaires(1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
080-05201	RAB	Revue	Centre de documentation	En réserve L003	Exclu du prêt