TURBULENT PARAMETERS AT DIFFERENT HEIGHTS IN THE ATMOSPHERE. SHACK–HARTMANN WAVEFRONT SENSOR DATA
Journal Title: Solar-Terrestrial Physics - Year 2022, Vol 8, Issue 2
Abstract
The paper presents the results of studies of wavefront distortions at different heights in the atmosphere. We have used measurement wavefront data to determine optical turbulence parameters along the line of sight of the Large Solar Vacuum Telescope. Through cross-correlation analysis of differential motions of sunspots at spaced wavefront sensor subapertures, we determined turbulent parameters at different heights at the Large Solar Vacuum Telescope site. The differential motions of sunspots characterize the small-scale structure of turbulent phase distortions in the atmosphere. Synchronous temporal changes in the amplitude of these distortions at certain regions of the telescope aperture are conditioned by turbulent layers at different heights. We have estimated the contribution of optical turbulence to integral distortions at the telescope aperture for layers 0–0.6, 0.6–1.1, 1.1–1.7 km. The contribution of optical turbulence concentrated in a 1.7 km atmospheric layer to the wavefront distortions at the aperture telescope is shown to be ~43 %.
Authors and Affiliations
Shikhovtsev A. Y. , Kiselev A. V. , Kovadlo P. G. , Kolobov D. Y. , Russkikh I. V. , Tomin V. E.
Keywords
Related Articles
- EP ID EP706570
- DOI 10.12737/stp-82202203
- Views 114
- Downloads 0
PROBLEMS OF THE PC1 MAGNETOSPHERIC WAVE THEORY. A REVIEW
The Pc1 ultralow-frequency electromagnetic waves (frequency range 0.2–5 Hz), also known as pearl necklace, are a unique phenomenon in near-Earth space physics. Many properties of pearls remain a mystery, despite the rese...
MANIFESTATIONS OF TWO BRANCHES OF SOLAR ACTIVITY IN THE HELIOSPHERE AND GCR INTENSITY
This paper provides insight into heliospheric processes and galactic cosmic ray (GCR) modulation occurring due to the presence of two branches of solar activity in this solar layer. According to the topology of solar mag...
MANIFESTATION OF SOLAR WIND COROTATING INTERACTION REGIONS IN GCR INTENSITY VARIATIONS
The regions of interaction between solar wind streams of different speed, known as corotating interaction regions, form an almost constantly existing structure of the inner heliosphere. Using observational data on the ma...
Long-period geomagnetic pulsations as an element of the space weather influence on technologocal systems
We analyze variations in geomagnetically induced currents (GIC) and pulsations of the geomagnetic field latitudinal By component in the frequency range 1–20 mHz. The analysis is based on the data from GIC registration at...
MONITORING OF MAGNETOSPHERIC PARAMETERS BASED ON COSMIC RAY EFFECTS IN AUGUST 2018
Using data (uncorrected for the temperature effect) from the global network of neutron monitors (GNNM), along with data from the Yakutsk muon telescope complex and the muon hodoscope URAGAN (Moscow), we have applied a mo...