Sea Ice Flows, Sea of Okhotsk, CIS
Summary
STS039-84-29AL (28 April-6 May 1991) --- This nearly vertical photograph of the North Atlantic, taken outside of the sunglint pattern, illustrates the extreme contrast between highly reflective ice, having a large percentage of between-crystal air space, and the low-reflectance water, which absorbs most of the light that propagates into it from the air. The ice drifts along with the surface currents and wind and may therefore be used as a natural Langranian* tracer. Photographs such as this, taken several times over the course of a mission, may be used to investigate near-surface circulation in high-latitude oceans. *A Langranian tracer is anything that can be tracked as it drifts along with the water, as opposed to staying in one position and measuring how fast the water goes by.
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