As requested by the US Army Corps of Engineers, CDIP has special
data formats for wave energy and direction. There are also
CDIP specific formats for other data types such as wind and barometric
pressure.

Wave energy is resolved to 9 bands (2-6,6-8,8-10,10-12,12-14,14-16,16-18,18-22,22+ seconds)
in units of cm^2. (Please see the confidence interval disclaimer below).

The mean wave direction is resolved to 9bands (as above).
Harvest Platform only has 6 period bands due to the large distance
between sensors. Angles reported in the directional data are true compass
headings towards which the waves are traveling at the location of the
measuring instrument. Peak direction is given in the second column.

Wave energy confidence interval disclaimer
Estimates of wave energy contain a certain amount of statistical
uncertainty. This uncertainty is function of wave frequency bandwidth
not period bandwidth. Therefore, the energy estimates in the 9 period
bands have varying confidence limits. In general, the statistical
uncertainty gets progressively smaller as you go from the longer to
the shorter wave period bands (which encompass increasingly larger
frequency bandwidths).