ABSTRACT

InSb Indium antimonide IRMSS Infrared multispectral scanner ISO International Organization for Standardization IVOS Infrared Visible Optical Sensors JAXA Japan Aerospace Exploration Agency L4 Landsat-4 L5 Landsat-5 L7 Landsat-7 L8 Landsat-8 MOBY Marine optical BuoY MODIS MODerate resolution Imaging Spectroradiometer MSS Multispectral scanner NASA National Aeronautics and Space Administration NIST National Institute of Standards and Technology NOAA National Oceanic and Atmospheric Administration NPL National Physical Laboratory OLI Optical land imager PASC Partial-aperture solar calibrator PICS Pseudoinvariant calibration site PIF Pseudoinvariant feature QA4EO Quality Assurance Framework for Earth Observation QUASAR Quality assurance and stability reference SBDE Spectral band di§erence e§ects SI International system of units SPOT Satellite Pour l’Observation de la Terre SRCA Spectro-radiometric calibration assembly TM Ÿematic Mapper

Acronyms and De¦nitions .................................................................................................................109 4.1 Introduction .............................................................................................................................110 4.2 Postlaunch Sensor Radiometric Calibration Methodologies ...........................................110