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Journal of the Korean Institute of Electromagnetic and Science 2005;5(4):189-192.
Measurement of Rainfall Characteristics and Rain-Attenuation at 38 GHz in Worst Months Affected by El Nino Signal in 1998
Won-Gyu Jang, Jae-Hoon Choi
Department of Electronics and Computer Engineering, Hanyang University
Abstract
The measurement of unique rainfall phenomenon and rain attenuation on 38 GHz terrestrial links at South Korea in 1998 is presented. It was one of the most severe rainfall years at the measured region due to increased EI Nino signal. The rainfall rate exceeded at $0.01%$ was 97.4 mm/h during a worst month and annual rate was 63.5 mm/h. Experimentally measured results have been compared with some models and found that the rain attenuation by system level was underestimated by the existing prediction models. As it was measured only three months, further study and measurement of rainfall and rain attenuation in this region are needed for stable millimeter-wave system operation at all times.
Key words: Rain, Attenuation Measurement, Millimeter Wave Propagation, El Nino
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