BUG: Verify scaling on wave power plots

[KCollins]

Expected behavior: Same order of magnitude for calculated wave power in wave power plots, when waves are present.

Observed behavior: Order of magnitude difference between Arctic/Antarctic stations seems common.

Hypotheses:

• Sampling rate difference? (since this now pulls from magdf() since wavepwr uses magdf #7 , these should match in sampling rate, but perhaps they don't - should check.)
• Different DFT parameters? (number of points in window, smoothing, start and stop times of window)
• Hardware sensitivity?
• Physical result?

Next steps:

• Review dataframe from which the wave power is calculated.
• Check DFT parameters