Calibration and validation techniques development for forest utilization of agroforestry satellite data
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The Agriculture and Forestry Satellite, one of the next-generation medium-sized satellite series to be launched in Korea, is a satellite in progress to monitor environmental changes in forestry and agriculture and periodic monitoring of forests and crops. It has five spectral bands, including Blue, Green, Red, Red Edge, Near Infrared, and a high spatial resolution of 5 m. It is designed to observe the entire Korean peninsula in 3 days by utilizing a revisit cycle once a day and a wide swath of 120 km. To accurately collect surface information from the satellite images, it is necessary to correct the geometry and topography effects. Because geometry and topography correction is significant because the reflectivity may appear different depending on the slope. Therefore, it is necessary to analyze what parameters respond sensitively to the wavelength range of agricultural and forestry satellites in Korea's forest areas and how they affect them. Since the current agriculture and forestry satellite is before launch, we will use similar satellite images to examine the pre-launch image calibration and validation technology. This presentation intends to share the analysis's initial results by applying geometric, and terrain correction techniques using currently available satellites similar to agroforestry satellites. Through this study's results, it is expected that it will be able to provide factors to be considered in the forestry field in the future development of the agricultural and forestry satellite calibration program.
Keywords: Monitoring and data collection
ID: 3622303