Quantification of spatial spread in track-based applications

Meteorological applications

article

Jacob C. H. Cheung¹ 

[1] Met Office

关键词: Fréchet distance;    trajectory;    aviation;    storm track;    ensemble;    spaghetti;   

DOI  :  10.1002/met.1556

学科分类：社会科学、人文和艺术（综合）

来源: Wiley

【 摘 要 】

Traditionally, spaghetti charts and track ellipses are used in track-based meteorological applications to illustrate the spatial uncertainty of a set of paths on a map. However, the spatial spread of the set is often evaluated by the eye, and as a result, the decisions made can be highly subjective. A unit-less metric based on the Fréchet distance is developed and proposed as a consistent way of quantifying spatial uncertainty in track-based applications. The methodology described is generic and can be configured for use in applications where a measure of the spatial similarity among a set of tracks is required, such as tropical storm track forecasts and flight/ship routing.

【 授权许可】

CC BY|CC BY-NC|CC BY-NC-ND