Wavelength influence in sub-pixel temperature retrieval using the dual-band technique

摘要: The thermal model proposed by Crisp and Baloga (1990) for active lava flows considers flux as a func- tion of the fractional area two thermally distinct radiant surfaces. In this model, larger surface corre- sponds to cooler crust flow other, much smaller fractures in crust. These cracks temper- ature is higher than one approaches temperature molten or plastic interior flow. dual-band method needs SWIR (short wave infrared) bands formulate equations sys- tem from simultaneous solution Planck equation each band. system solutions consist hot component. dual band technique originally builds on data ac- quired sensors (such Landsat TM) with only. use hyperspectral imaging spectrom- eters allows us test using different wavelengths range spectrum. DAIS 7915 equipped 40 into 1.54-2.49 nm which represent potential input calculation. This study aims compare results derived inserting assorted couples system. analysis these provides useful information accuracy.