ShipsClock vs Marine Barometer使用状況と統計

This application is NOT compatible with the Apple Watch. If your device is connected with a watch, when the device is "asleep", you will not hear the ships bell notification sounds. The notification goes to the watch. The watch plays its own notification sound. There is no way to prevent this behavior. - mark time by sounding the ship's bell - display a twenty-four hour clock face with hands for the hour, minute, and the four-hour ship's watch - display of the current latitude and longitude in degrees, minutes, and seconds - display of the current heading using points of the compass - display of velocity in knots - display the hour angle of the sun and moon - display the hour UTC

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Marine Barometer

Marine Barometer is a barometer sensor interface that is uniquely designed to meet the needs of mariners who rely on accurate atmospheric pressure for weather routing and the evaluation of weather maps. Pressure readings can be manually saved permanently along with the latitude, longitude, and time of the reading. If a sensor offset has been applied, that value is also stored with each recorded pressure. These recorded pressures can then at the navigator's convenience be transferred to the vessel's printed logbook. The GPS sensor is accessed for latitude and longitude only. The elevation of the sensor (your iOS device that includes a barometer) above sea level must be entered manually. Elevation values from the GPS are not accurate enough for the intended application. The concept of sea level pressure is explained along with how it is determined from the sensor reading. Instructions are provided on how to check the calibration of the sensor, and a sensor offset can be applied as needed. Links to sources of accurate sea level pressure are included. Sources of accurate elevation are included for use on land. The standard units for marine applications are millibars (mb) or hectoPascals (hPa). The main pressure display can also be set to inches of mercury, millimeters of mercury, or kiloPascals. However, because the primary reference pressures that would be used to check the sensor calibration are in mb, the sensor calibration must be set using millibar units. Reference links are provided for learning more about the tactical use of pressure for weather forecasting and weather map evaluation. Discounts are offered for barometer related reference books.