Specifying the saturation temperature for the HyspIRI 4-μm channel

摘要: article i nfo The investigation of high-temperature natural phenomena, such as wildland fires and active lava flows, is a primary science objective for the proposed Hyperspectral Infrared Imager (HyspIRI) mission. Current planning HyspIRI includes mid-infrared (MIR) channel centered at 4 μm that will allow measurement radiance emitted from targets. In this paper we present results study to specify saturation temperature MIR channel. This was based on reviews literature, together with case studies airborne satellite-based data acquired over spatial resolution measurements an important consideration in remote sensing due thepresence ofmaterialsatdifferent temperatures withinthe areacoveredbyanimage pixel.The provide 60 m, which ~40 times finer (in terms area) than finest provided by heritage instruments (370 m). fine increase prob- ability targets fill image pixel and, therefore, require 2 higher limits instruments. Based our study, recommend 1200 K (927 °C). recommendation accounts high expected performance channel, overlap sensitivity between thermal infrared (7.5-12 μm) channels.