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WindCalc Vs. Atmosphere WRF for iPad

WindCalc im Vergleich zu Atmosphere WRF for iPad Nutzung und Statistiken

This app converts apparent wind to true wind or ground wind, depending on the inputs for vessel speed and heading. This is a computation needed daily by sailing vessels underway and by ships reporting weather to national agencies. Use SOG and COG from the GPS for speed and heading to get the "true wind" used in official forecasts (sometimes called "ground wind") or use true heading derived from compass heading and knotmeter speed to get the" true wind" used on sailboat’s polar diagrams (sometimes called "water wind). Likewise this app does the reverse computation, true wind to apparent wind, so a mariner can forecast expected apparent wind based on a forecasted true wind change and known true wind boat speeds from a polar diagram. This allows mariners to plan for the sails needed and the courses available to them when the new wind appears. The app is designed with a simple, clean interface for efficient use.

Apple App Store
Kostenlos
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Atmosphere WRF for iPad

With Atmosphere WRF you have under control, with a simple touch, weather maps of models WRF-ARW ECM with resolution at 2,5km, 3km and 7km developed by the LaMMA consortium for Italy and most part of Europe and with zoom on Northern Italy. The number of available parameters allow the weather expert and meteorology enthusiast to check the details of the evolution of the weather for the next few days but also the common user, with a simple look at the maps, to understand, for example, how much it will rain or how much snow will fall in the coming days. Available parameters: - Cumulative precipitation in the previous hour - Cumulative precipitation in the previous 3 hours - Cumulative precipitation in the previous 6 hours - Cumulative precipitation in the previoud 12 hours - Cumulative precipitation in the previous 24 hours - Snow accumulated in the previous 6 hours - Snow accumulated in the previous 24 hours - Type of precipitation - Clouds type - Wind at 10 meters - Wind gust - Pressure at sea level - Temperature at 2 meters - Temperature and geopotential at 925 hPa - Temperature and geopotential at 850 hPa - Temperature and geopotential at 500 hPa - Relative humidity at 2 meters - Relative humidity at 925 hPa - Relative humidity at 850 hPa - Relative humidity at 700 hPa - Relative humidity at 500 hPa - Altitude of the freezing level - Temperature potential equivalent to 850 hPa - Total Totals Index and Sweat - K Index - Lifted Index - Delta Theta-e - CAPE - CIN - Precipitable water - Geopotential at 500 hpa and ground pressure - Relative humidity and wind at 300 hpa - Vorticity at 500 hpa - Tropopause Height Available areas for the WRF-ARW ECM model with 25km Resolution: - Europe - Zoom on Italy Available areas for the WRF-ARW ECM model with 12km Resolution: - Mediterranean - Zoom on Northern Italy Available areas for the WRF-ARW ECM model with 3Km Resolution: - Italy - Zoom on Northern Italy Plus: - View of 2 maps simultaneously in portrait mode. - View of 4 maps simultaneously in landscape mode. - Zoom on a single map in landscape mode. - Convenient animation to control the progress of the maps in time - Legend of the scales used in the maps - Share maps on Facebook, Twitter or by email, save maps to the Camera Roll The forecast are updated twice a day.