Finestructure of Elevated Stable Layers Observed by Sounder andIn SituTower Sensors

Autor: William Neff, R. J. Zamora, J. E. Gaynor, E. E. Gossard
Rok vydání: 1985
Předmět:
Zdroj: Journal of the Atmospheric Sciences. 42:2156-2169
ISSN: 1520-0469
0022-4928
DOI: 10.1175/1520-0469(1985)042<2156:foeslo>2.0.co;2
Popis: A study of the finestructure within elevated stable atmospheric layers is described. The observational program consisted of measurements made with fast-response turbulence sensors on a carriage traversing a 300 m tower and comparison of the carriage data with data from acoustic and radar echo sounders. Some supporting observations using a free balloon-borne sensor of the temperature structure parameter are also shown. The layers studied were found to be composed of sheets and layers in temperature, humidity and wind reminiscent of the sheet and layer structures often reported in lakes, estuaries and the oceans. Finestructure in the profiles of temperature and humidity are very highly correlated within elevated stable layers. The sheets are generally accompanied by thin zones of very large temperature and humidity structure parameter, apparently the result of Kelvin-Helmholtz instability, that account for the strong returns from these zones recorded by short wavelength radar and acoustic sounders....
Databáze: OpenAIRE