Centre de documentation
scientifique

ASTER observations of thermal anomalies preceding the April 2003 eruption of Chikurachki volcano, Kurile Islands, Russia / D. Pieri in Remote sensing of environment, vol 99 n° 1-2 (15 November 2005)  

Public [article]  inRemote sensing of environment > vol 99 n° 1-2 (15 November 2005) . - pp 84 - 94 Titre : ASTER observations of thermal anomalies preceding the April 2003 eruption of Chikurachki volcano, Kurile Islands, Russia Type de document : Article/Communication Auteurs : D. Pieri, Auteur ; Michael Abrams, Auteur Année de publication : 2005 Article en page(s) : pp 84 - 94 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection [Termes IGN] anomalie thermique [Termes IGN] éruption volcanique [Termes IGN] image Terra-ASTER [Termes IGN] image thermique [Termes IGN] rayonnement infrarouge thermique [Termes IGN] risque naturel [Termes IGN] Russie [Termes IGN] surveillance géologique [Termes IGN] tâche claire Résumé : (Auteur) Chikurachki volcano (Nothern Kurile Islands Chain, Paramushir Island 50° 20'N, 155° 27'E; elevation 1816 m, stratovolcano) has been in a state of unrest for over twenty years. Its most recent eruption that began in April 2003 was preceded by an eruption between January May 2002. Thermal infrared images from the Japanese-United States' Advanced Spacebome Thermal Emission and Reflection Radiometer (ASTER-5 TIR channels, 8-12 um, 90 m/pixel, Noise Equivalent Delta Temperature [NET] 0.1-0.3 K, onboard the U.S. National Aeronautics and Space Administration's Terra polar-orbiting spacecraft) of a snow-covered Chikurachki Volcano taken in January 2003 show muted evidence of thermal activity. ASTER thermal infrared (TIR) images from February 2003, however, indicate warmer areas within the summit crater. Average whole-pixel temperatures of adjacent summit slopes are in the range of 250-252 K, while many summit-crater whole pixel temperatures are 2-6 K greater. A two component Planck solution for the warmer pixels yields a solution of 275-277 K for 10-15% of the Chikurachki summit crater and 285-295 K for 25-35% of a prominent "hotspot'* on its flank. An interpretation of this enhanced pre-eruption heat flow is the presence of surface melt water. The detection in ASTER data of such subtle precursory heat-flow enhancement, even retrospectively, raises important issues for remote monitoring of "dormant" snow-capped volcanoes, especially those that threaten nearby populations, like Mt. Rainier. Numéro de notice : A2005-442 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.rse.2005.06.012 En ligne : https://doi.org/10.1016/j.rse.2005.06.012 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=27578 [article]

vol 99 n° 1-2 - 15 November 2005 - Scientific Results from ASTER (Bulletin de Remote sensing of environment) / Alan Gillespie  

Public [n° ou bulletin]  Titre : vol 99 n° 1-2 - 15 November 2005 - Scientific Results from ASTER Type de document : Périodique Auteurs : Alan Gillespie, Éditeur scientifique ; Michael Abrams, Éditeur scientifique ; Yasushi Yamaguchi, Éditeur scientifique Année de publication : 2005 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image optique [Termes IGN] image infrarouge [Termes IGN] image Terra-ASTER [Termes IGN] radiomètre Numéro de notice : 110-0419 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Numéro de périodique En ligne : http://www.sciencedirect.com/science/journal/00344257/99/1-2?sdc=2 Format de la ressource électronique : URL sommaire Permalink : https://documentation.ensg.eu/index.php?lvl=bulletin_display&id=21470 [n° ou bulletin]

Contient

• Assessment of ASTER land cover and MODIS data at multiple scales for ecological characterization of an arid urban center / W.L. Stefanov in Remote sensing of environment, vol 99 n° 1-2 (15 November 2005)  
• Analysis of urban heat-island effect using ASTER and ETM+ data: separation of anthropogenic heat discharge and natural heat radiation from sensible heat flux / S. Katowski in Remote sensing of environment, vol 99 n° 1-2 (15 November 2005)  
• Estimating sub-pixel surface roughness using remotely sensed stereoscopic data / A. Mushkin in Remote sensing of environment, vol 99 n° 1-2 (15 November 2005)  
• ASTER observations of thermal anomalies preceding the April 2003 eruption of Chikurachki volcano, Kurile Islands, Russia / D. Pieri in Remote sensing of environment, vol 99 n° 1-2 (15 November 2005)