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I'm under the impression that this takes special equipment? We're talking centimeter precision by the way. Shouldn't I be able to get this from some App by now?!
"Height above sea level" refers to the vertical distance from a specific point on the earth's surface to the average level of the ocean's surface.
The most accurate way to determine your height above sea level is by using a global navigation satellite system (GNSS) receiver, such as a GPS device. This device uses satellite signals to calculate your elevation above sea level.
Yes, you can use a topographic map to estimate your height above sea level. Topographic maps show contour lines that connect points of equal elevation, allowing you to determine your approximate elevation at a specific location.
In addition to elevation, other factors that can affect your height above sea level include local topography, atmospheric pressure, and weather conditions such as temperature and humidity.
Yes, there are many websites and apps that provide elevation data, including Google Maps, MapQuest, and GPS altitude apps. However, the accuracy of these sources may vary, so it is best to use a GNSS receiver for precise measurements.