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On 17th and 18th July 2001, several fractures opened on Mt. Etna southern flank generating different lava flows&#13; spreading both in Valle del Bove and towards Nicolosi. On 29th July the image spectrometer MIVIS was flown&#13; over Mt. Etna to acquire high-resolution images of the eruption. The MIVIS airborne campaign was planned simultaneously&#13; with TERRA, EO-1 and Landsat 7 satellite acquisitions, in order to compare hyperspectral and&#13; multispectral data referred to active lavas. This work focuses on the thermal mapping of lava flows, taking advantage&#13; of MIVIS sensor high technical performances. The MIVIS high spatial resolution allows a detailed&#13; analysis of the lava flow topographic distribution. Its 12 bit dynamic range consents an estimate of the temperature&#13; even for the «hottest» pixels. The main target of this work is the evaluation of the energy flux by means of&#13; remote-sensing techniques. Surface temperature analysis was performed on distinct lava flows using the dualband&#13; technique. These quantities were compared with the integrated temperatures retrieved using the MIVIS&#13; thermal infrared bands. The influence of topography was also considered in the flux calculation using a Digital&#13; Elevation Model (DEM) of Mt. Etna

Temperature distribution analysis of July 2001 Mt. Etna eruption observed by the airborne hyperspectral sensor MIVIS