학술논문

A STUDY ON VESSEL DRIFTING SIMULATION ACCURACY USING VARIOUS METEOROLOGICAL MODELS / 気象予測モデルを用いた船舶の漂流予測計算精度に関する研究
Document Type
Journal Article
Source
土木学会論文集B2(海岸工学) / Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering). 2021, 77(2)1015
Subject
STOC-DM
STOC-ML
WRF
stormsurge
typhoon
vessel
wind
Language
Japanese
ISSN
1883-8944
1884-2399
Abstract
In this study, a method for predicting the drift of vessels during typhoons is developed, and the accuracy of predicting the drift of vessels is investigated by calculating the drift using various weather prediction models. The prediction method is based on the domain meteorological model WRF, the Japan Meteorological Agency's GSM (Japan region), and the forecast data of MSM. The results of the prediction calculations showed that, on average, the error of the predicted drifting position from the measured value was about 1 to 4 km, but in the case of a vessel at anchor, the prediction accuracy of the drifting wake and the drifting point was higher in the case with a higher prediction accuracy of the wind field. However, in order to improve the accuracy of predicting the anchorage of a vessel during a typhoon, it is necessary to take into account various uncertainty factors, such as the anchor chain, waves, and the use of the main engine, in order to improve the calculation accuracy, such as the conditions for the start of drifting.

Online Access