<h2>A Javascript worldview for surface temp.</h2>

You may have noticed that I generally prefer simple spherical (orthographic) projections for displaying global fields. Even though it takes several projections to convey all the information.

But I use lat/lon maps for comparisons, and more recently, Hammer projections for comparison with NOAA and MP.

Spherical projections take up space, but this can be resolved by creating a poor man's Google Earth (OK, GE is free) with Javascript. In the plot below, of the July temperature data using GISS's colors and baseline (1951-80), you'll see a pattern of squares, top left. This corresponds to eight views. The directions are as if the earth was encased in a cube, with one apex above the N pole. The views are from the directions of the eight corners. N Pole is the square at the top, the next three are around near the Tropic of Cancer, etc. Just click - the red square marks where you are.
Picture below the jump




Below the jump - same for NOAA



This time, for variety, I've positioned the views differently. The viewing cube is tangent to the pole, so the foci are points along a N and S latitude, at about 40°. The squares to click on follow that pattern.(Due to a slight inadequacy in the current JS, please don't click on this one before clicking on the top one).