Vektorfeld

Bildinfo und Lizenz

Windvektoren rund um die Inselkette von Hawai. In dieser Region weht der Wind recht beständig von Ost nach West (Passat). Die Länge der Pfeile gibt die Windstärke an. Man sieht, wie die Windgeschwindigkeiten zwischen den Inseln und am Rand zunimmt. Im Windschatten der Inseln (Lee) nimmt er deutlich ab. Das Vektorfeld stellt die Information anschaulich dar.

The top image is a w:QuikSCAT satellite image of the effect of the Hawaiian Islands on the trade winds. Between islands the winds increase, while in the wake of the islands the winds are remarkably weaker. The bottom image (from the w:TRMM) shows the ocean current formed by the islands' wake. Arrows indicate current direction and speed (derived from a general circulation model), while white contours show ocean temperatures.

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