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Histels: organic soils similar to histosols except that they have permafrost within two meters (6 ft 7 in) below ground surface. They have 80% or more organic materials from the soil surface to a depth of 50 cm (20 in) or to a glacic layer or densic, lithic, or paralithic contact, whichever is shallowest.
The outcome of the study was a class of vertical-beam depth sounders, which is still widely used. It simultaneously pinged at two acoustic frequencies, separated by more than 2 octaves, making depth and echo-amplitude measurements that were concurrent, both spatially and temporally, albeit at a single vertical grazing angle. [clarification needed]
A depth gauge is an instrument for measuring depth below a vertical reference surface. They include depth gauges for underwater diving and similar applications. A diving depth gauge is a pressure gauge that displays the equivalent depth below the free surface in water. The relationship between depth and pressure is linear and accurate enough ...
A dive computer, personal decompression computer or decompression meter is a device used by an underwater diver to measure the elapsed time and depth during a dive and use this data to calculate and display an ascent profile which, according to the programmed decompression algorithm, will give a low risk of decompression sickness.
An acoustic doppler current profiler (ADCP) is a hydroacoustic current meter similar to a sonar, used to measure water current velocities over a depth range using the Doppler effect of sound waves scattered back from particles within the water column.
Victoreen Civil Defense V-777-1 shelter radiation detection kit overview. CD Counters came in a variety of different models, each with specific capabilities. Each of these models has an analog meter from 1 to 5, with 1/10 tick marks. Thus, at X10, the meter reads from 1 to 50. CD meters were produced by a number of different firms under contract.
Rep.-elect Brad Knott, R-N.C., vows to fight D.C. bureaucracy he blames for fueling the border crisis and funding foreign conflicts at taxpayers' expense
In its basic, untested configuration, it was stated to operate to a depth of 4,000 m (13,000 ft), limited by winch capacity; additional equipment was required for the deep-diving configuration. [7] H6500 measured 55 in (1,400 mm) W × 80 in (2,000 mm) L × 58 in (1,500 mm) H with a mass of 2,700 lb (1,225 kg) and a maximum payload of 110 lb (50 ...
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