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Marine weather forecasting is the process by which mariners and meteorological organizations attempt to forecast future weather conditions over the Earth's oceans. Mariners have had rules of thumb regarding the navigation around tropical cyclones for many years, dividing a storm into halves and sailing through the normally weaker and more ...
For each harbor there is a Meteogram with detailed wind forecasts and weather information for eight days. Available weather data for wind direction, wind speed, air temperature, air pressure, relative humidity, cloudiness, precipitation. From this worldwide available data the captains can predict the marine weather.
The Global Wind Atlas is a web-based application developed to help policymakers and investors identify potential high-wind areas for wind power generation virtually anywhere in the world, and perform preliminary calculations. It provides free access to data on wind power density and wind speed at multiple heights using the latest historical ...
Nautical charts must be labeled with navigational and depth information. There are a few commercial software packages that do automatic label placement for any kind of map or chart. Modern systems render electronic charts consistent with the IHO S-52 specification, issued by the International Hydrographic Organization (IHO).
Four charts of the wind, 18th-century illustration based on medieval wind roses. The Tower of the Winds in Athens, of about 50 BC is in effect a physical wind rose, as an octagonal tower with eight large reliefs of the winds near the top. It was designed by Andronicus of Cyrrhus, who seems to have written a book on the winds.
Map of Sea Areas and Coastal Weather Stations referred to in the Shipping Forecast. The 31 sea areas covered in the forecast are as shown in this table and map. [12] The forecast follows the order shown, going clockwise around the British Isles, with each area except Trafalgar, Irish Sea, Shannon, and Fair Isle bordering the previous.
In fluid dynamics, wind wave modeling describes the effort to depict the sea state and predict the evolution of the energy of wind waves using numerical techniques.These simulations consider atmospheric wind forcing, nonlinear wave interactions, and frictional dissipation, and they output statistics describing wave heights, periods, and propagation directions for regional seas or global oceans.
Such maps have been in use since the mid-19th century and are used for research and weather forecasting purposes. Maps using isotherms show temperature gradients, [2] which can help locate weather fronts. Isotach maps, analyzing lines of equal wind speed, [3] on a constant pressure surface of 300 or 250 hPa show where the jet stream is located.