Results 51 to 60 of about 190 (79)

Analysis of the Results of Astroclimate Research at the Kara-Dag Radioastronomical Station in Crimea and the Possibilities for Reducing the Influence of the Atmosphere on Millimeter-Band Radioastronomical Observations

Journal of Experimental and Theoretical Physics, 2019
The results of astroclimate research at the Kara-Dag radioastronomical station (Crimea) from July 22 to September 21, 2017, are presented. The algorithms for processing the data obtained by the atmospheric profile method are analyzed. The broad bands of the MIAP-2 receivers are shown to lead to a non-cosecant dependence of the antenna temperatures on ...
I. T. Bubukin, I. V. Rakut’, M. I. Agafonov, A. L. Pankratov, A. V. Troitskii, V. A. Lapchenko, R. V. Gorbunov, I. I. Zinchenko, V. I. Nosov, V. F. Vdovin   +9 more
openaire   +3 more sources

Astroclimate of the Terskol Observatory

Adaptive Optics Systems IX
Evgeniy Kopylov, Sergey A. Potanin, Lidiya Bol'basova, Artem Shikhovtsev, Mikhail Sachkov   +4 more
openaire   +3 more sources

Mobile Differential Image Motion Monitor for Astroclimate Research

Astrophysical Bulletin
S. A. Potanin, E. A. Kopylov, A. D. Savvin   +2 more
openaire   +3 more sources

Variations in the Astroclimate of High-Altitude Observatories of Tajikistan

Astronomy Reports
L. A. Bolbasova, E. A. Kopylov, A. P. Mironov, G. I. Kokhirova, A. O. Zhukov   +4 more
openaire   +3 more sources

Astroclimate parameters of the surface layer in the Sayan Solar Observatory

SPIE Proceedings, 2009
High-altitude profiles of the parameters of atmospheric air currents in the lower surface layer were measured with the use of a meteorological mast of 32 m in height. A mobile ultrasonic meteosystem was used for the measurements. The theory of similarity for turbulence in anisotropic boundary layer has been verified. The measured vertical profiles of
V. V. Nosov, V. M. Grigoriev, P. G. Kovadlo, V. P. Lukin, A. V. Torgaev   +4 more
openaire   +1 more source

Millimeter-wave astroclimate investigations on badary observatory near Baikal lake

2017 XXXIInd General Assembly and Scientific Symposium of the International Union of Radio Science (URSI GASS), 2017
This paper deals with results of long-term astroclimate investigations in millimeter-wave band in the Badary observatory near Baikal lake. The optical depths for the 3-millimeter and 2-millimeter-band windows have been determined with the atmospheric dip method.
Grigoriy M. Bubnov, Vyacheslav F. Vdovin, Vladimir Yu. Bukov, Timofey A. Makarov, Gennadiy N. Il'in, Igor I. Zinchenko   +5 more
openaire   +1 more source

Repeated testing of under dome astroclimate of AZT-33 telescope

SPIE Proceedings, 2009
Based on the results of repeated measurements of under dome airstreams parameters of the AZT-33 telescope, some conclusions have been drawn, allowing improvement in quality of astronomic images in the telescope. After fulfillment of a part of recommended works, changes of under dome climate were compared with the measurements of 2005.
V. V. Nosov, V. M. Grigoriev, P. G. Kovadlo, V. P. Lukin, P. G. Papushev, A. V. Torgaev   +5 more
openaire   +1 more source

ASTROCLIMATE OF THE TERSKOL PEAK OBSERVATORY

Proceedings of the XVIII Conference of Young Scientists “Interaction of fields and radiation with matter”
Atmospheric turbulence characteristics are important for determining the quality of astronomical imaging and implementing adaptive systems. The paper studies the vertical distributions of optical turbulence at the Terskol Peak Observatory (43.27472° N 42.50083° E, 3127 m above sea level) using the Era-5 reanalysis, optical scintillation measurements ...
E.A. Kopylov, L.A. Bolbasova, A.Yu. Shikhovtsev, S.A. Potanin, A.M. Sachkov   +4 more
openaire   +1 more source

Tashanta as a promising astropoint of the Altai mountains: the first results of the astroclimate study

Astronomičeskij žurnal
For the Tashanta point, 49°43ʹ4ʺN, 89°11ʹ31ʺE, Gorny Altai, data from continuous measurements of astroclimatic parameters of the surface layer, monthly average values of the total cloud cover, suspended water vapor from the ERA5 atmospheric reanalysis database and primary measurements of the altitude distribution of turbulence are presented.
L. А. Bolbasova, E. A. Kopylov, S. А. Potanin   +2 more
openaire   +1 more source

Ecuador's Astroclimate, 2010–2025

Country-scale astro-climatology and site-screening for Ecuador, integrating reanalysis, satellite, and geospatial layers into operational products for observatories. From ERA5 (2010–2025) we derive three night-time metrics—photometric clear-sky fraction (CSNF), precipitable water vapour (PWV), and 200-hPa wind speed (V200)—and combine them into an ...
openaire   +1 more source