The three dimensional velocity of the CME which is derived from plane of sky speeds using various methods (e.g. source location, geometric triangulation, fitting models).
Coal is a readily combustible black or brownish-black sedimentary rock. The harder forms, such as anthracite coal, can be regarded as metamorphic rock because of later exposure to elevated temperature
and pressure. It is composed primarily of carbon along with variable quantities of other elements, chiefly sulfur, hydrogen, oxygen and nitrogen. [Wikipedia]
Glaciers whose tongues come together and flow in parallel without coalescing; No merging of ice masses; Glaciers whose tongues come together and flow in parallel without coalescing (WGMS 1977)