Most of the data used in the temperature(depth,time) area fills on the Buoy Summary Plots are not gridded, and instead are at the actual instrument depths and times.

ATLAS Buoys west of 150W use the following eleven standard instrument depths (m):
0, 25, 50, 75, 100, 125, 150, 200, 250, 300, 500

Buoys east of 150W use depths (m):
0, 20, 40, 60, 80, 100, 120, 140, 180, 300, 500

At a few buoys where changes in instrument depths have occurred in time, the earlier temperatures have been gridded to the later standard depths by linear interpolation.

The four current meter moorings along the Equator at 156E, 165E, 140W, and 110W generally have more than eleven instrument depths. The temperatures for these buoys were linearly interpolated to the standard depths described above.

The actual depths (m) for the current meter mooring temperatures are listed below. Note that not all of these depths were instrumented at all times:
156E: 0, 3, 5, 10, 30, 50, 75, 100, 125, 150, 175, 200, 225, 250, 300, 400, 500
165E: 0, 3, 10, 30, 50, 75, 100, 125, 150, 175, 200, 225, 250, 275, 300, 400, 500
140W: 0, 3, 10, 25, 35, 40, 45, 60, 80, 100, 120, 140, 160, 200, 250, 300, 500
110W: 0, 10, 15, 25, 35, 40, 45, 50, 60, 75, 80, 100, 120, 140, 150, 160, 200, 250, 300, 500

Missing daily temperatures have been interpolated in depth. Missing SST values are filled using nearest shallow subsurface temperatures for depths shallower than 50 m. This corresponds to an assumption of a mixed layer depth of 50 m. In a very few cases, bottom temperatures are linearly extrapolated from shallower temperatures when the slope at the nearest temperature can be reliably estimated and when the distance extrapolated is small. For more examples of Buoy Summary Plots, see the TAO / TRITON Data Display page.