ICOADS Web information page (Tuesday, 08-Nov-2005 17:00:19 MST):
Figure 2a. Untrimmed observations of sea surface temperature (SST). The
left panel shows coverage before correction of the ZQ problem, and the
right panel shows coverage after correction. The colors show the number
of observations in a 2° box per decade. Grey indicates 1-9; red indicates
10-99; orange indicates 100-399; yellow indicates 400 or more.
[Links to detailed][Report-rejection Problem]