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. Author manuscript; available in PMC: 2018 Jun 22.
Published in final edited form as: J Geophys Res Space Phys. 2018 May 9;123(5):4215–4231. doi: 10.1029/2017JA025033

Table 1.

Empirical equations of threshold NPP dependence on wave period with signal length from 66.7% to 133.3% of ideally even sampled length in the Pc3–4 and Pc5 range.

Npts Pc3–4 Npts Pc5
200 NPP = 0.72T̃sin +6.8 400 NPP = 0.49T̃sin +16.7
250 NPP = 0.94T̃sin +6.3 500 NPP = 0.60T̃sin +19.0
300 NPP = 1.09T̃sin +6.5 600 NPP = 0.71T̃sin +21.2
350 NPP = 1.25T̃sin +6.6 700 NPP = 0.82T̃sin +23.8
400 NPP = 1.40T̃sin +7.0 800 NPP = 0.95T̃sin +25.0