In offshore and coastal engineering, metocean refers to the syllabic abbreviation of meteorology and (physical) oceanography.
This, in order to estimate the environmental conditions of direct influence on the choices to be made during the project phase at hand, and to arrive at an effective and efficient solution for the problems/goals stated.
They are most often presented as statistics, including seasonal variations, scatter tables, wind roses and probability of exceedance.
For estimating probabilities of exceedance – for relevant physical quantities – data of extreme events during more than one year is needed.
Often, long-term local measurements of wave conditions due to extreme events (e.g. hurricanes) are missing.