An iceberg forecast approach based on a statistical ocean current model

被引:2
作者
Andersson, Leif Erik [1 ]
Scibilia, Francesco [1 ,2 ]
Imsland, Lars [1 ]
机构
[1] Norwegian Univ Sci & Technol, Dept Engn Cybernet, N-7491 Trondheim, Norway
[2] Equinor ASA, Equinor Res Ctr, Arkitekt Ebbells Veg 10, N-7053 Ranheim, Norway
关键词
Iceberg drift forecasting; Offshore operations; Parameter estimation; Multivariate empirical mode decomposition; Moving horizon estimator; Model identification; DRIFT; TRAJECTORIES; PREDICTION;
D O I
10.1016/j.coldregions.2018.11.016
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
This article proposes a statistical model for short-term iceberg drift forecasts by transforming the problem of forecasting the iceberg velocity into a problem of forecasting the ocean current velocity. A Vector-autoregression model is identified using historical ocean current data as a training set. The proposed forecast scheme is tested and analysed on four real iceberg drift trajectories. Based on these results, recommendations about the forecast horizon, the filter horizon and model order are given. Moreover, it is shown that the statistical forecast approach presented in this article offers superior performance to a conventional dynamic iceberg forecast model for short-term drift forecasts.
引用
收藏
页码:128 / 142
页数:15
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