نتایج جستجو برای: atmospheric turbulence

تعداد نتایج: 111918  

Journal: :Journal of the Meteorological Society of Japan. Ser. II 1951

Journal: :Atmospheric Chemistry and Physics 2021

Abstract. Theoretical models of the Earth's atmosphere adhere to an underlying concept flow driven by radiative transfer and nature surface over which is taking place: heat from sun and/or anthropogenic sources are sole energy driving atmospheric constituent transport. However, another source prevalent in human environment at very local scale – kinetic moving vehicles atmosphere. We show that t...

2013
Pingping Pan

Based on the theory for the turbulence and the Rytov method, the propagation formulas of the scintillation index and the mean square angle-of-arrival fluctuation for the beam propagation in atmospheric turbulence have been derived respectively. The propagation properties of the two turbulence effects have been investigated, and the effects of the characteristic parameters of turbulence and the ...

Journal: :Journal of Geophysical Research 1966

Journal: :The Journal of the Acoustical Society of America 1989

Journal: :Journal of the Meteorological Society of Japan. Ser. II 1951

Journal: :Journal of Geophysical Research 2003

Journal: :Journal of physics 2023

Abstract We present recent advances in the modeling of wind fields and their reconstruction from real-world atmospheric turbulence measurements. The proposed field model provides a statistically coherent framework for empirically observed occurrence extreme events. Furthermore, we demonstrate that is general enough to enmesh measurement points, e.g., meteorological masts or LIDAR, thus rather c...

Journal: :Journal of the Atmospheric Sciences 2022

Abstract In this work we show how to retrieve information about temporal changes of turbulence in the atmosphere based on situ wind velocity measurements performed by aircraft. We focus stratocumulus-topped boundary layer high-resolution data taken a helicopter-borne platform Airborne Cloud Turbulence Observation System (ACTOS). calculate two nondimensional indicators, dissipation factor and in...

Journal: :Physical review letters 2015
Fabrizio R Giorgetta Gregory B Rieker Esther Baumann William C Swann Laura C Sinclair Jon Kofler Ian Coddington Nathan R Newbury

Broadband atmospheric phase spectra are acquired with a phase-sensitive dual-frequency-comb spectrometer by implementing adaptive compensation for the strong decoherence from atmospheric turbulence. The compensation is possible due to the pistonlike behavior of turbulence across a single spatial-mode path combined with the intrinsic frequency stability and high sampling speed associated with du...

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