elevation, altitude sickness, airspeed, acclimatization, altimeter, mesosphere, timberline, transonic, descents, groundspeed, autorotation, temperature, barometric pressure, mountain, tropopause, troposphere, grossglockner, pico de orizaba, terrain, humidity, ridge, flying, seracs, zugspitze, latitudes, glacier, mount kilimanjaro, ojos del salado, takeoff, veldt, endurance, velocity, sailplane, icecap, ballistic trajectory, paramo, millibar, airglow, orbital velocity, paragliding, marmolada, highveld, wasatch range, drogue parachute, summiting, gliders, gradiometer, icefall, speeds, sajama, himalayas, airborne, altocumulus, aconcagua, minima, treeline, turbojet, obscuration, retrorockets, supersonic, sastrugi, microlite, alpine, slopes, ornithopter, cosmic radiation, plane, icefield, cog railway, geosynchronous orbit, ascents, glide slope, isotherm, airship, ionosphere, thermals, crosswind, atmospheric, hypersonic, sangre de cristo mountains, annularity, airstream, cumulonimbus cloud, karakoram range, huascaran, evapotranspiration, subsonic, bernese alps, windy, distances, windblast, mohave desert, radiosonde, afterburner, jet stream, nmi, airflows, aircrew, fourteener, topography, hang glider, equatorial, height, altitudes, frequency, value, depth, fluence, speed, amperage, weight, width, size, intensity, rpm, salinity, wattage, luminance, magnification, highaltitude, latitude, unmanned, manned, midlatitude, ballistic, nearshore, subalpine, inshore, longrange, coastal, dryland, geothermal, hightemperature, humid, inflight, instrumented

ceiling, level

., 3d radar, absolute ceiling, acclimation, acclimatisation, acclimatization, aerie, aery, altazimuth, altitudinal, altocumulus, altocumulus cloud, altostratus, altostratus cloud, artesian well, base, bird's-eye, bird's eye view, ceiling, chandelle, cirrocumulus, cirrocumulus cloud, cirrostratus, cirrostratus cloud, cirrus, cirrus cloud, climb, climbing, cloud, combat ceiling, culminate, eyrie, eyry, flyover, flypast, high, high-level, high up, jet stream, loft bombing, low-level, mother-of-pearl cloud, mounting, nacreous cloud, nephoscope, orbit period, ozone sickness, panoramic, panoramic view, parhelic circle, parhelic ring, pressure suit, quadrant, roll, service ceiling, shoot, solar halo, stinger, temperature gradient, three-dimensional radar, toss bombing

angular position, distance, length

alt, el