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A global study of NDVI difference among moderate-resolution satellite sensors / Xingwang Fan in ISPRS Journal of photogrammetry and remote sensing, vol 121 (November 2016)  

Public [article]  inISPRS Journal of photogrammetry and remote sensing > vol 121 (November 2016) . - pp 177 – 191 Titre : A global study of NDVI difference among moderate-resolution satellite sensors Type de document : Article/Communication Auteurs : Xingwang Fan, Auteur ; Yuanbo Liu, Auteur Année de publication : 2016 Article en page(s) : pp 177 – 191 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection [Termes IGN] analyse comparative [Termes IGN] effet atmosphérique [Termes IGN] image Aqua-MODIS [Termes IGN] image multicapteur [Termes IGN] image NPP-VIIRS [Termes IGN] image Terra-MODIS [Termes IGN] image TIROS-AVHRR [Termes IGN] Normalized Difference Vegetation Index [Termes IGN] occupation du sol [Termes IGN] variation saisonnière Résumé : (Auteur) Moderate-resolution sensors, including AVHRR (Advanced Very High Resolution Radiometer), MODIS (MODerate-resolution Imaging Spectroradiometer) and VIIRS (Visible-Infrared Imager-Radiometer Suite), have provided over forty years of global scientific data. In the form of NDVI (Normalized Difference Vegetation Index), these data greatly benefit environmental studies. However, their usefulness is compromised by sensor differences. This study investigates the global NDVI difference and its spatio-temporal patterns among typical moderate-resolution sensors, as supported by state-of-the-art remote sensing derived products. Our study demonstrates that the atmosphere plays a secondary role to LULC (Land Use/Land Cover) in inter-sensor NDVI differences. With reference to AVHRR/3, AVHRR/1 and 2 exhibit negative NDVI biases for vegetated land cover types. In summer (July), the area of negative bias shifts northward, and the magnitude increases in the Northern Hemisphere. For most LULC types, the bias generally shifts in the negative direction from winter (January) to summer. A linear regression of the NDVI difference versus NDVI shows a close correlation between the slope value and vegetation phenology. Overall, NDVI differences are controlled by LULC type and vegetation phenology. Our study can be used to generate a long-term, consistent NDVI data set from composite MODIS and AVHRR NDVI data. LULC-dependent and temporally variable correction equations are recommended to reduce inter-sensor NDVI differences. Numéro de notice : A2016--017 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.isprsjprs.2016.09.008 En ligne : http://dx.doi.org/10.1016/j.isprsjprs.2016.09.008 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=83879 [article]

Comparison of large-area land cover products with national forest inventories and CORINE land cover in the European Alps / Lars T. Waser in International journal of applied Earth observation and geoinformation, vol 8 n° 3 (September 2006)  

Public [article]  inInternational journal of applied Earth observation and geoinformation > vol 8 n° 3 (September 2006) . - pp 196 - 207 Titre : Comparison of large-area land cover products with national forest inventories and CORINE land cover in the European Alps Type de document : Article/Communication Auteurs : Lars T. Waser, Auteur ; Markus Schwarz, Auteur Année de publication : 2006 Article en page(s) : pp 196 - 207 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection [Termes IGN] Alpes [Termes IGN] analyse comparative [Termes IGN] cohérence des données [Termes IGN] Corine Land Cover [Termes IGN] image NOAA-AVHRR [Termes IGN] image Terra-MODIS [Termes IGN] image TIROS-AVHRR [Termes IGN] inventaire forestier étranger (données) [Termes IGN] inventaire forestier national (données France) [Termes IGN] Italie [Termes IGN] montagne [Termes IGN] Suisse Résumé : (auteur) Considerable efforts have recently resulted in the development of global land cover data at large spatial scales. The main objective of this study is a comparison of different AVHRR- and MODIS-based forest and land cover products at the scale of the European Alps: a large natural ecosystem that is exposed to both natural environmental threats and human impacts and exploitation. In a first test, the accuracy of land cover products in predicting the overall amount of forest across national boundaries was assessed using national forest inventory statistics. Both variants of forest class combinations resulted in a general overestimation of the forest area. The IGBP 2.0 cover performed best with an overall mean absolute error of 13% and a bias of 0%. In a second test, large-area land cover products were tested for accuracy in predicting 13 aggregated land cover types in a spatially explicit manner using CORINE land cover as reference dataset. Due to data inconsistencies, partly insufficient spatial resolution, steep terrain and land use heterogeneity of the European Alps, only partly satisfactory results were obtained. Numéro de notice : A2006-304 Affiliation des auteurs : non IGN Thématique : FORET/IMAGERIE Nature : Article DOI : 10.1016/j.jag.2005.10.001 Date de publication en ligne : 15/12/2005 En ligne : https://doi.org/10.1016/j.jag.2005.10.001 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=96043 [article]

Automated detection of thermal features of active volcanoes by means of infrared AVHRR records / N. Pergola in Remote sensing of environment, vol 93 n° 3 (15/11/2004)  

Public [article]  inRemote sensing of environment > vol 93 n° 3 (15/11/2004) . - pp 311 - 327 Titre : Automated detection of thermal features of active volcanoes by means of infrared AVHRR records Type de document : Article/Communication Auteurs : N. Pergola, Auteur ; F. Marchese, Auteur ; V. Tramutoli, Auteur Année de publication : 2004 Article en page(s) : pp 311 - 327 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image [Termes IGN] analyse diachronique [Termes IGN] anomalie thermique [Termes IGN] détection automatique [Termes IGN] éruption volcanique [Termes IGN] Etna (volcan) [Termes IGN] fiabilité des données [Termes IGN] image NOAA-AVHRR [Termes IGN] image thermique [Termes IGN] image TIROS-AVHRR [Termes IGN] méthode robuste [Termes IGN] prévention des risques [Termes IGN] rayonnement infrarouge thermique [Termes IGN] Stromboli (volcan) [Termes IGN] surveillance géologique [Termes IGN] tâche claire [Termes IGN] test de performance [Termes IGN] volcan Résumé : (Auteur) An innovative, Advanced Very High Resolution Radiometer (AVHRR)-based technique for improved automatic detection of volcanic Hotspots and thermal anomalies is proposed in this paper. It is mainly based on a multitemporal analysis of historical, long-term satellite records. Such a technique basically rests on the Robust AVHRR Techniques (RAT) approach, which has been already successfully applied to sevreral natural and environmental emergencies (e.g., fires, floods, earthquakes). In this work, the proposed technique has been tested on an extended set of eruptive events of Mt. Etna and Stromboli volcanoes. Results achieved, in terms of reliability (low false alarm rate) as well as of effectiveness (detection sensitivity), are described in detail. Moreover, the potential in low-level thermal anomaly detection, as possible pre-eruptive thermal signs, is also addressed and preliminary results obtained for a couple of events, discussed. The study cases here presented show the benefits of such a technique especially when different observational conditions (time/season of pass, atmospheric moisture content, solar illumination, satellite angles of view, etc.) are considered, making such a method globally applicable. The future prospects, also in terms of possible operational scenarios, coming from the implementation of such an approach on the new generation of satellite sensors (such as SEVIRI aboard Meteosat Second Generation) are also discussed. Numéro de notice : A2004-439 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.rse.2004.07.010 En ligne : https://doi.org/10.1016/j.rse.2004.07.010 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=26959 [article]

Cloud track winds in the polar regions from sequences of AVHRR images / J. Turner in International Journal of Remote Sensing IJRS, vol 10 n°4-5 (May 1989)  

Public [article]  inInternational Journal of Remote Sensing IJRS > vol 10 n°4-5 (May 1989) . - pp 695 - 703 Titre : Cloud track winds in the polar regions from sequences of AVHRR images Type de document : Article/Communication Auteurs : J. Turner, Auteur ; D.E. Warren, Auteur Année de publication : 1989 Article en page(s) : pp 695 - 703 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection [Termes IGN] Antarctique [Termes IGN] courant aérien [Termes IGN] image TIROS-AVHRR [Termes IGN] nuage [Termes IGN] orbite défilante [Termes IGN] vent [Termes IGN] zone polaire Numéro de notice : A1989-132 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/01431168908903911 En ligne : https://doi.org/10.1080/01431168908903911 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=25092 [article]

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Earthnet's coordination scheme for AVHRR data / L. Fusco in International Journal of Remote Sensing IJRS, vol 10 n°4-5 (May 1989)  

Public [article]  inInternational Journal of Remote Sensing IJRS > vol 10 n°4-5 (May 1989) . - pp 625 - 636 Titre : Earthnet's coordination scheme for AVHRR data Type de document : Article/Communication Auteurs : L. Fusco, Auteur ; K. Muirhead, Auteur ; G. Tobiss, Auteur Année de publication : 1989 Article en page(s) : pp 625 - 636 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Acquisition d'image(s) et de donnée(s) [Termes IGN] acquisition de données [Termes IGN] archivage [Termes IGN] image NOAA-AVHRR [Termes IGN] image TIROS-AVHRR [Termes IGN] traitement d'image Numéro de notice : A1989-124 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/01431168908903903 En ligne : https://doi.org/10.1080/01431168908903903 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=25084 [article]

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vol 10 n°4-5 - May 1989 - Applications of AVHRR data (Bulletin de International Journal of Remote Sensing IJRS) / Remote sensing society

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The navigation of AVHRR imagery / R.J.H. Brush in International Journal of Remote Sensing IJRS, vol 9 n° 9 (September 1988)  

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Algorithm for automatic atmospheric corrections to visible and near-IR satellite imagery / Y.J. Kaufman in International Journal of Remote Sensing IJRS, vol 9 n° 8 (August 1988)  

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An improved method for detecting clear sky and cloudy radiances from AVHRR data / R.W. Saunders in International Journal of Remote Sensing IJRS, vol 9 n° 1 (January 1988)  

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Finding satellite sensor imagery by use of the Leda databank / D.J. Booth in International Journal of Remote Sensing IJRS, vol 9 n° 1 (January 1988)  

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Bottom influence on the reflectance of the sea / D. Spitzer in International Journal of Remote Sensing IJRS, vol 8 n° 3 (March 1987)  

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