The intercept, ratio and R² values resulting from the regression analyses comparing one calendar year (2021) of data from the Bideford Bay, Penzance, Perranporth, and Porthleven buoys. The regressions compare significant wave height (Hm0) derived from 30 min records by way of CCO processing and by way of Datawell MkIII processing (30 vs 30 min), and Hm0 derived from 12 min heave records by way of CCO processing and Hm0 derived from full-length 30 min heave records by way of Datawell MkIII processing (30 vs 12 min)