23 September 2013 Requirements for a Moderate-resolution Infrared Imaging Sounder (MIRIS)
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Abstract
The high cost of imaging and sounding from space warrants exploration of new methods for obtaining the required information, including changing the spectral band sets, employing new technologies and merging instruments. In some cases we must consider relaxation of the current capability. In others, we expect higher performance. In general our goal is to meet the VIIRS and CrIS requirements while providing the enhanced next generation capabilities: 1) Hyperspectral Imaging in the Vis/NIR bands, 2) High Spatial Resolution Sounding in the Infrared bands. The former will improve the accuracy of ocean color products, aerosols and water vapor, surface vegetation and geology. The latter will enable the high-impact achieved by the current suite of hyperspectral infrared sounders to be achieved by the next generation high resolution forecast models. We examine the spectral, spatial and radiometric requirements for a next generation system and technologies that can be applied from the available inventory within government and industry. A two-band grating spectrometer instrument called the Moderate-resolution Infrared Imaging Sounder (MIRIS) is conceived that, when used with the planned NASA PACE Ocean Color Instrument (OCI) will meet the vast majority of CrIS and VIIRS requirements in the all bands and provide the next generation capabilities desired. MIRIS resource requirements are modest and the Technology Readiness Level is high leading to the expectation that the cost and risk of MIRIS will be reasonable.
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Thomas S. Pagano, Hartmut H. Aumann, Andrew J. Gerber, Le Kuai, I. Gontijo, Berta DeLeon, Joel Susskind, Lena Iredell, Shyam Bajpai, "Requirements for a Moderate-resolution Infrared Imaging Sounder (MIRIS) ", Proc. SPIE 8870, Imaging Spectrometry XVIII, 887007 (23 September 2013); doi: 10.1117/12.2023813; https://doi.org/10.1117/12.2023813
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