Archive and distribution of VIIRS DNB data for the Northeast Asian Sea

Abstract

Night-time satellite data were first collected from the U.S. Air Force in 1972 for military purposes. Since then, it has been useful to understand the human activities in the fields of society, economy, culture, and science, etc. In the perspective of oceanography, the night-time satellite data has been used for monitoring purposes such as detecting night-time fishing boats. The Korea Ocean Satellite Center (KOSC) of the Korea Institute of Ocean Science & Technology (KIOST) has been directly receiving the Suomi National Polar-orbiting Partnership (S-NPP) Visible Infrared Imaging Radiometer Suite (VIIRS) Day & Night Band (DNB) data since June 2016. It has been archived and distributed for about four years. In addition, the KOSC operates its own ground system, which pre-processing the data including the radiance transformation, conversion of coordinate system, terrain correction, and calibration of lunar irradiation effect for quality improvement. Currently, the contributed data is preprocessed within about an hour after the receiving, so it is evaluated the high efficiency and usefulness in terms of time. This has confirmed the feasibility of real-time information acquisition through the research in the field of night-time monitoring/observation missions in the Northeast Asian Sea and onshore disaster/accident monitoring. The KOSC is making efforts to utilize the distributed data in various research such as maritime domain awareness. From the second half of this year, the NOAA-20 data will be directly received and distributed as an additional night-time satellite data. In the future, it is expected that the more diverse data will be distributed through the research utilization and supports.

Keywords

• jpss
• s-npp
• viirs
• dnb
• noaa-20