Marine Barometer 1.4

The Marine Barometer is a specialized barometer sensor interface that caters to the specific needs of mariners who rely on precise atmospheric pressure measurements for weather routing and the analysis of weather maps. This device allows users to manually save and store pressure readings, along with associated location and time data. It also records any sensor offset that has been applied, providing a comprehensive record of pressure data. Furthermore, users have the convenience of transferring these recorded pressures to their vessel's printed logbook at their leisure.

While the Marine Barometer accesses the GPS sensor solely for latitude and longitude information, it is important to note that the elevation of the sensor (i.e., your iOS device with a built-in barometer) must be manually inputted. The elevation data from GPS is not precise enough for the intended application.

An explanation of the concept of sea level pressure is provided, clarifying how it is derived from the barometer's readings. Additionally, detailed instructions are included for checking the calibration of the sensor and applying a sensor offset, if necessary. Links to reliable sources for obtaining accurate sea level pressure and elevation data are also provided, with specific recommendations for land-based applications.

The Marine Barometer primarily employs millibars (mb) or hectoPascals (hPa) as standard units for marine use, although alternative units such as inches of mercury, millimeters of mercury, or kiloPascals are available for display purposes. However, it is crucial to set the sensor calibration using millibar units since the main reference pressures used to validate the calibration are given in mb.

For enthusiasts seeking further knowledge regarding the tactical utilization of pressure in weather forecasting and weather map evaluation, useful reference links are provided. Lastly, valuable discounts on barometer-related reference books are offered, enhancing customers' access to additional educational materials.