Spaceborne global navigation satellite system reflectometry (GNSS-R) interferometric altimetry, with its advantages of low-cost, rapid global coverage, and revisiting capability, shows promise as new ...

There is far more to altitudes and altimeters than most people think. When pilots equip themselves with the proper knowledge of the various altitude types, they can maintain situational awareness ...

To calculate pressure altitude, first get the current altimeter setting from a verified weather source. Check the current METAR online or listen to the ASOS, AWOS, or ATIS frequency at your airport.