depth
vertical distance below the reference surface
depth
depth of a borehole or mine shaft related to the surface
Secchi depth
measurement of transparency in fresh and sea water
equivalent air depth
depth at which a nitrox mix will have the same nitrogen partial pressure as air at the reference depth
water depth
distance from surface to floor of a water body
mean depth
the average distance between the surface and the bottom in a body of water
carbonate compensation depth
depth in the oceans below which no sediment particles are preserved than consist of calcium carbonate
true vertical depth
depth of a hole measured vertically down
equivalent narcotic depth
method for comparing the narcotic effects of a trimix diving gas with air
maximum operating depth
depth below which the partial pressure of oxygen (pO2) of the gas mix exceeds an acceptable limit
thaw depth
distance from the soil surface to the surface of the permafrost layer