NASA’s Hyperspectral Infrared Imager (HyspIRI)

Abstract

NASA’s Hyperspectral and Infrared Imager (HyspIRI) mission is one of the missions recommended in the National Research Council Earth Science Decadal Survey. HyspIRI will fly two instruments: a hyperspectral visible to short wave infrared imaging spectrometer, and a multispectral thermal infrared (TIR) imager. In this study we discuss the expected performance and use of the TIR instrument. The TIR instrument will have eight spectral channels, seven of the channels are between 7 and 12 μm, with one additional channel at 4 μm. The TIR instrument will have a swath width of 600 km, and pixel size of 60 m. HyspIRI TIR will provide two visits every 5 days (one day and one night) at the equator, and more frequently at higher latitudes. The TIR instrument will always be on and full resolution (60 m) data will be downlinked for the entire land surface including the coastal oceans (shallower than 50 m depth). Data over the deeper ocean will also be downlinked but at a reduced spatial resolution of 1 km. In response to the Decadal Survey, HyspIRI has been designed to answer important science questions in the areas of coastal, ocean and inland aquatic environments; wildfires; volcanoes; ecosystem function and diversity; land surface composition and change; and human health and urbanization. NASA’s Distributed Active Archive Center will archive and distribute Level 0 to Level 2 products. In addition a direct broadcast capability will allow users to capture and process a subset of HyspIRI data in near real time.KeywordsSwath WidthQuantum Well Infrared PhotodetectorDecadal SurveyImportant Science QuestionMars Odyssey SpacecraftThese keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.