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Research
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Research and projects
■ Development of data archive and distribution system of satellite data (collaborating with NASA and USGS) The data archive and distribution system of satellite data based on de facto standard, as an intellectual infrastructure, has been developed here in GSJ at AIST. We started to receive raw data of ASTER from NASA via internet in December 2014, which has been archived in our institution. The radiometric and geometric calibrations are being implemented for generating ASTER higher order products that are transferred to JSS, Japan and USGS on a daily basis. We are thus responsible for maintaining and managing the whole system. The system is necessary for application studies associated with earth observation. ■ Calibration and validation of satellite data and its standardization We research into a method and algorithm of radiometric calibration for multispectral (ASTER) and hyperspectral (HISUI) sensors. The post-launch calibration for sensor-sensitivity degradation of satellite sensors has been performed by several calibration techniques (e.g., onboard calibration, vicarious calibration, and cross calibration). Well-calibrated ASTER and HISUI data will be fundamental reference data for further calibration/validation of recent small/micro satellite sensors. We also contribute to data collection for phenological eyes network (PEN). The validation studies have been conducted using auto-monitoring ground-based network of atmosphere and forest canopy in Japan. ■ Application studies of remote sensing Researches on the application of remote sensing involve monitoring the Earth environment, mineral and energy resource explorations, and the disaster prevention using remotely-sensed data. Disaster Prevention Mineral and Energy Resource Explorations Environmental Monitoring |