flying altitude above ground

Height Above Ellipsoid (HAE); altitude / elevation above the ellipsoid (ellipsoidal height)

altitude above ground level

above the takeoff altitude (AToA)

wing-in-ground-effect amphibious craft; ground-effect vehicle (GEV); wing-in-ground-effect (WIG); ground-effect craft; wingship; flarecraft; ekranoplan

accident-free flying / mishap-free flying

mishap-free flying / accident-free flying

low flying aircraft / low-flying aircraft

height above ground

above-ground launch

above-ground missile emplacement

above-ground structure

above ground level (AGL)

above-ground storage

nap-of-the-earth (NOE) (ground-hugging / terrain masking / flying under the radar / hedgehopping)

low-altitude drive on ground

low-altitude pursuit drive on ground

above water warfare officer

echelon above corps (EAC)

echelon above brigade (EAB)

above field level (AFL)

hull above fender

above aerodrome level (AAA)

data above voice

above sea level (ASL)

above-water craft

fly above the weather

elevation above sea level

above mean sea level (AMSL)

battle-ground / battle ground / battleground

Ground Observer 12 (GO 12 Ground Surveillance Radar, нім. Bodenüberwachungsradar)

vantage ground / vantage-ground

ground-to-ground guided missile