Open AccessEstimating of the optical turbulence profile for clear sky over Baghdad
Author(s) -
Thoalfaqar Al-Rbayee,
Monim H. Al-Jiboori
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/790/1/012024
Subject(s) - radiosonde , sky , meteorology , turbulence , atmosphere (unit) , geology , atmospheric sciences , physics
Study of optical turbulence profile represented by refractive index structure through the atmosphere has several effects on the propagation of light, free space optics, degradation of images taken by telescopes. Based on the routine meteorological data taken from radiosonde such as air pressure, air temperature and wind speed, this study presents C n 2 profiles for clear sky four days at time 12 pm of year 2019, which are chosen at different seasons: winter, spring, summer and autumn. The results show that these profiles have large values near the ground and gradually drop to low values. Also these profiles have large values in winter and after 17 km height they drop steeply and unify to same trend and magnitudes.