Egnell-Clayton Law
The Egnell-Clayton law is a control empirically found that states that the wind speed increases above a fixed point on the earth's surface with the height and in the upper troposphere (about 5,000 to 10,000 meters) inversely proportional is the air density. This means that the mass flow generated by the wind in this area of the atmosphere is independent of the altitude.
The law was discovered in the late 1890s by the Swedish meteorologist Axel Egnell and the American meteorologist Henry Helm Clayton through systematic cloud observations and pilot balloon ascents . William Jackson Humphreys gave a theoretical justification in 1920 .
swell
- Sir Napier Shaw: Manual of Meteorology . Volume 4, Meteorological Calculus: Pressure and Wind , revised edition of Volume 4 (1919), Cambridge University Press, Cambridge 1931, p. 226
- Arnold Court, Robert R. Ready, and Gerald E. Abrahms: Mathematical Wind Profiles . George C. Marshall Space Flight Center, NASA, NAS-8-5380, Huntsville, Alabama 1968, p. 6
Individual evidence
- ^ William Jackson Humphreys: Physics of the Air . Lippincott, Philadelphia 1920, pp. 157-159