Zobrazeno 1 - 10
of 53
pro vyhledávání: '"N. N. Shefov"'
Publikováno v:
Annales Geophysicae, Vol 22, Pp 2273-2276 (2004)
On the basis of the analysis of the data of auroral observations at middle latitudes during low solar activity, and modern spectrophotometric research, the feasibility of their joint use for the estimation of the level of the solar activity during
Externí odkaz:
https://doaj.org/article/13d50d66c12c410ba87cb2e72409b484
Publikováno v:
Geomagnetism and Aeronomy. 55:699-708
The variations in different (7–21 years) activity periods (F10.7) in the atmospheres of stars of the late spectral types (G2–K5) and the Sun have been considered. F10.7 quasiperiodic oscillations with periods varying from 1.8 to 12.5 years have b
Empirical model of variations in the upper atmosphere continuum emission. 3. Emitting-layer altitude
Publikováno v:
Geomagnetism and Aeronomy. 55:539-546
The specific features and variations in the continuum emission volume intensity for different heliogeophysical conditions were revealed based on rocket and satellite measurements of this emission in the upper atmosphere in the visible spectral region
Publikováno v:
Doklady Earth Sciences. 468:490-492
The published data on long-term observations on cycles of the activity of the Sun and stars of late spectral classes (F, G, K) were analyzed. Quasiperiodic oscillations (QPO) in solar activity with periods varying from 1.8 (7-year cycles) to 12.5 yea
Publikováno v:
Geomagnetism and Aeronomy. 54:655-665
The absolute integral intensity of the IR components of the continuum emission is calculated from the laboratory velocities of photochemical reactions between NO and nonexcited and excited O3 molecules. The vertical intensity distribution of the cont
Publikováno v:
Geomagnetism and Aeronomy. 54:488-499
The ground-based and satellite measurements of the upper-atmosphere continuum (continuous emission) intensity in the visible and near IR spectral regions have been analyzed. The data were obtained at the geophysical stations, located in different reg
Publikováno v:
Geomagnetism and Aeronomy. 54:373-380
On the basis of multiyear ground-based, rocket, and satellite studies of characteristics of the hydroxyl emission of the upper atmosphere, information on longitudinal changes in the height of its emitting layer, the vibrational temperature, and the i
Autor:
N. N. Shefov
Publikováno v:
Geomagnetism and Aeronomy. 53:774-779
A problem of estimating the significance of revealed trends appears in the analysis of long-term variations in the parameters of different processes that describe the state of geophysical phenomena and similar processes. If the time interval is limit
Publikováno v:
Geomagnetism and Aeronomy. 53:492-501
Data on longitudinal variations in the hydroxyl emission have been obtained based on long-term studies of the mesopause temperature and hydroxyl (OH) emission at different ground stations in the Northern Hemisphere and based on temperature measuremen
Publikováno v:
Doklady Earth Sciences. 449:362-365