Friday, March 20, 2009

Mapping the Journey

We’re almost back in port! We finished our last CTD station, number 126, and now we’re packing up. Here is a really, really cool map of where we’ve been:

Wow! What’s going on here? A few different things
- The arrows represent the movement of water on the surface. Longer arrows mean the water was moving faster
- The color of the arrow shows the surface water temperature. Red is warmer, blue is cooler.
- The locations of the arrows follow the cruise track, so you can see where we’ve been

This is called a vector plot (the arrows are called vectors) and they’re a great way to show a lot of data in a small space.

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