Welcome to GoXplore.
Do you live for those days when you can grab your rucksack and boots and head off into the wild?
GoXplore is an online community where you will meet hundreds of other people like yourself. It's for everybody who loves the natural world enough to go wilderness camping, exploring, climbing and mountaineering or navigating the world's waters by kayak, raft or yacht.
With friends in all regions of the world, the forum offers completely free membership - why not join now - and you could be in dialogue with some of the world's most interesting outdoorsmen in less than a minute.
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ViewsAltimeterFrom GuidesAn Altimeter is a piece of navigational equipment used to determine altitude above a fixed plane - most commonly sea level.
Types of equipmentBarometric AltimeterAs altitude increases, barometric pressure decreases, by about one millibar for every 27 feet when in relative proximity to sea level. If the pressure has been set at a known height any deviation from this height can be calculated from the change in pressure. Advantages
Disadvantages
GPS AltimetersThese work on the basis of triangulation, however, more then 3 satellites are required and so is only restricted to top end GPS units for any true accuracy. Most GPS units work off barometric pressure. |