[A-AS10] General Meteorology

[AAS10-P09] Development of a portable meteorological observation system for the study of local dynamics

*Keita Sumiya¹, Akitomo Funayama¹, Ryuki Matsubara¹, Keigo Kimura¹, Akiho Endo¹, Hidehiko Suzuki¹ (1.Meiji University)

Keywords:Ground-based meteorological observation

Ground-based meteorological observation data are essential for the creation of ground-based weather maps for accurate numerical forecasts and current weather summaries. The Japan Meteorological Agency (JMA) has deployed the AMeDAS system, a regional meteorological observation system, at about 1,300 locations throughout the country, where highly accurate observations of basic meteorological fields such as wind direction and speed, temperature, and humidity are automatically made. Although AMeDAS is deployed at about 17 km intervals, its main role is to provide representative regional values, and its spatial resolution is not sufficient as data for studying local meteorological phenomena. On the other hand, in recent years, low-cost, high-performance processors and various sensors have become more readily available, facilitating the independent development of meteorological instruments to meet research needs. Therefore, our research group is developing a portable meteorological measurement system (POMS: Portable Meteorological Station) that can (1) operate under off-grid conditions (no commercial power supply or Internet), (2) be easily transported, installed, and operated, and (3) collect basic data for simple weather forecasts. This system will be developed to collect basic meteorological parameters in remote areas, such as isolated villages or scientific research sites, and to be used by experts (e.g., meteorologists) for simple weather forecasting. The accuracy of forecasts will be improved if information on the free atmosphere (upper atmosphere) is also obtained from the simple ground-based observing system. Therefore, POMS includes functions for scintillation monitoring of stars, automatic identification of cloud by camera, and estimation of wind fields in the free atmosphere by optical flow calculations in the system. In this paper, we present the capabilities of the first POMS prototype, report the results of test operations, and discuss future plans for operational deployment.