LISTING OF METOCEAN DATA / PARAMETERS
1. Meteorology1.1. Air temperature, °C
- Estimated air temperature of the coldest five-day period.
- Average air temperature of the coldest days.
- Absolute minimum air temperature.
- Absolute maximum air temperature.
1.2. Air Humidity
- Average annual air humidity.
- Air humidity. of the coldest month.
- Air humidity. of the warmest month.
1.3. Operational Wind Statistics
- Wind recurrence with respect to velocity intervals and directions, by months, in ice and ice-free periods, for the entire year.
- The number of days a year with wind speeds of 4, 8, 10, 12, and 15 m/sec.
- Average and maximum duration of wind conditions by speed intervals.
- A vertical wind speed profile for a layer of up to 100 m high.
1.4. Wind Extreme Statistical Characteristics
- Wind speed with 1, 5, 10, 25, 50 and 100-year return periods and averaging intervals of 10 min at a height of 10 m.
- Wind gust speed of 1, 5, 10, 25, 50 and 100-year return periods measured at a height of 10 m with averaging intervals 3-5 sec.
1.5. Duration and dates of navigation period, by month
- Maximum duration.
- Minimum duration.
- Average duration.
- Distribution of precipitation by months.
- Average monthly and extreme values of snow cover thickness.
- Number of days with fog estimated by months and by fog duration, in hours.
- Frequency of icing.
- Number of days with icing.
- Amount of ice per 1 sq. m of horizontal surface.
- Amount of ice per 1 sq. m of vertical surface.
- Thickness of the glaze ice wall versus its height above the sea level .
2. Oceanography2.1. Water Temperature
- Water temperature by seasons (by horizons, including bottom one).
- Absolute maximum water temperature.
- Absolute minimum water temperature.
2.2. Seawater Salinity And Transparency (By Seasons)2.3. Sea Level Operational Statistics
- Tidal regime.
- Observation analysis.
2.4. Extreme Sea Level Characteristics
- Highest and lowest astronomical tides relative to the mean sea level.
- Extreme positive and negative surges predicted to occur once in 5, 10, 25, 50 and 100-years.
- Estimated minimum and maximum sea level values relative to the mean sea level, predicted to occur once in 5, 10, 25, 50 and 100 -years.
- Seasonal sea level variations.
- Recommended estimated maximum sea level at the storm of 100-year return period and wave height probability of 0.1%.
2.5. Sea Currents Operational Statistics
- Recurrence of velocities and directions of the total sea currents at no less than three horizons, obtained from the observation data.
- A general scheme of sea currents in the operation area with details by seasons at not less than three horizons; a detailed scheme for the surface horizon based on typical wind conditions.
2.6. Characteristics Of Maximum Sea Current Velocities
- Estimated maximum velocities of total sea currents with an indication of direction, predicted to occur once in 5, 10, 25, 50 and 100-year periods at no less than three horizons, including the near-bottom one.
- Maximum tidal currents velocities at the indicated horizons.
2.7. Wave Operational Statistics
- Wave probability (%) by months, and for entire year.
- Duration of storms and weather windows for wave heights above and below the specified threshold.
- Swell waves characteristics.
- Wave spectral characteristics.
- Orbital velocities.
2.8. Wave Extreme Statistics
- Estimated wave parameters – average, 50%, 13%, 3%, 1%, and 0.1% probability, with “n”-year return period (n = 1, 5, 10, 25, 50 and 100 years).
- Estimated periods and wave lengths corresponding to wave heights n year return period.
- Exceedance of the wave crest of 0.1% probability with “n” year return period.
- Hazardous wave directions, the most probable direction of maximum estimated waves.
2.9. Combined extremes of the main hydrological parameters