Results 71 to 80 of about 395 (109)

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.
G. Bubnov, V. Vdovin, Vladimir Yu. Bukov, Timofey A. Makarov, G. N. Il’in, I. Zinchenko   +5 more
semanticscholar   +2 more sources

Analysis of the Results of Astroclimate Measurements in the Millimeter Wavelength Range Using Machine Learning Methods

Astrophysical Bulletin
T. A. Khabarova, P. Zemlyanukha, E. M. Dombek, A. S. Marukhno, V. Vdovin   +4 more
semanticscholar   +2 more sources

The Results of Observing the Astroclimate on the Crimean Peninsula in the Shortwave Part of the Millimeter Wavelength Range

Astrophysical Bulletin, 2018
We present the results of a study of the astroclimate on the Crimean Peninsula in the vicinity of the UNN Kara-Dag radioastronomical station (located at a height of 105 m above sea level). The measurements were taken in semi-automatic mode every 2 minutes from July 22 to September 21, 2017.
M. Agafonov, G. Bubnov, I. Bubukin, V. Vdovin, R. Gorbunov, I. Zinchenko, V. Lapchenko, V. I. Nosov, A. Pankratov, I. Rakut’   +9 more
semanticscholar   +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, В. П. Лукин, А. В. Торгаев   +4 more
openalex   +2 more sources

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

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. Bubukin, I. Rakut’, M. Agafonov, A. Pankratov, A. Troitskiĭ, V. Lapchenko, R. Gorbunov, I. Zinchenko, V. I. Nosov, V. Vdovin   +9 more
semanticscholar   +2 more sources

Astroclimate of specialized stations of the Large Solar Vacuum Telescope: Part I

SPIE Proceedings, 2007
V. Nosov, V. Grigoriev, P. Kovadlo, V. Lukin, E. V. Nosov, A. V. Torgaev   +5 more
semanticscholar   +2 more sources

Result of measurements of the astroclimate characteristics of astronomical telescopes in the mountain observatories

SPIE Proceedings, 2009
The paper describes the results of the measurements of telescope actroclimate characteristics in the mountains on the lake Baikal shore and in the Sayan foothills. For the measurements a mobile ultrasonic meteorological system was used. It is shown that the place of arrangement of telescopes on the lake Baikal shore is favorable to daytime observations,
V. V. Nosov, V. M. Grigoriev, P. G. Kovadlo, V. P. Lukin, A. V. Torgaev   +4 more
openaire   +1 more source

Astroclimate inside the dome of AZT-14 telescope of Sayan Solar Observatory

SPIE Proceedings, 2007
V. Nosov, V. Grigoriev, P. G. Kovaldo, V. Lukin, P. Papushev, A. V. Torgaev   +5 more
semanticscholar   +2 more sources

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