Changes in the Period of Negative Superhumps of Type SU UMa Dwarf Novae. II. NY Her (2017 and 2020)     

Pavlenko  E. P.  Sosnovskii  A. A.  Antonyuk  K. A.  Antonyuk  O. I.  Pit’  N. V.  Kokhirova  G. I.  Rakhmatullaeva  F. J.  Baklanov  A. V. 《Astrophysics》2021,64(3):293-305

Astrophysics - Photometric studies of the type SU UMa dwarf nova NY Her were made during 2017 and 2020 at the Crimean Astrophysical Observatory and at the Sanglokh Observatory over a total of 77...  相似文献   

Whistler Growth Rates in the Magnetosphere According to Measurements of Energetic Electron Fluxes on the Van Allen Probe A Satellite     

Shklyar  D. R.  Titova  E. E.  Manninen  J.  Romantsova  T. V. 《Geomagnetism and Aeronomy》2020,60(1):46-57

Geomagnetism and Aeronomy - Measurements of the differential fluxes of energetic electrons in the equatorial region of the magnetosphere in the energy range from units of keV to hundreds of keV...  相似文献   

Ground-Based and Satellite Observations of the SAR Arc in the MLT Evening Sector at the Beginning of the Magnetic Storm on March 17, 2015     

Ievenko  I. B.  Parnikov  S. G. 《Geomagnetism and Aeronomy》2020,60(6):737-746

Geomagnetism and Aeronomy - Stable auroral red (SAR) arcs are the result of the interaction of energetic ring current ions with the outer plasmasphere (plasmapause). The article analyzes the...  相似文献   

Winter North Atlantic Oscillations Driven by Variations in Total Solar Irradiance     

Gorshkov  V.  Chapanov  Y. 《Geomagnetism and Aeronomy》2020,60(8):1152-1158

Geomagnetism and Aeronomy - The solar influence on long-term climatic processes of Earth has been studied with the use of long-term series of historical reconstructions of Total Solar Irradiation...  相似文献   

Chemistry and Toxicity of Bottom Sediments in Small Watercourses of St. Petersburg     

Opekunov  A. Yu.  Mitrofanova  E. S.  Spasskii  V. V.  Opekunova  M. G.  Sheinerman  N. A.  Chernyshova  A. V. 《Water Resources》2020,47(2):282-293

Water Resources - The article gives the results of integrated studies of bottom sediments in four watercourses in the central St. Petersburg: the rivers of Ekateringofka, Okhta, Fontanka, and...  相似文献   

The Assessment of the Diffuse Pollution from Agricultural Territories in the Upper Volga Basin and the Development of Measures to Reduce It: Case Study of the Yakhroma River     

Kireycheva  L. V.  Lentyaeva  E. A.  Timoshkin  A. D.  Yashin  V. M. 《Water Resources》2020,47(5):709-720

Water Resources - The possible input of nutrients-pollutants into water bodies in the Upper Volga basin from agricultural lands is evaluated for the case of the Yakhroma R. with a basin area of...  相似文献   

Subsurface flow measurements using passive flux meters in variably-saturated cold-regions landscapes     

Élise G. Devoie  Ryan F. Connon  James R. Craig  William L. Quinton 《水文研究》2020,34(23):4541-4546

To date, passive flux meters have predominantly been applied in temperate environments for tracking the movement of contaminants in groundwater. This study applies these instruments to reduce uncertainty in (typically instantaneous) flux measurements made in a low-gradient, wetland dominated, discontinuous permafrost environment. This method supports improved estimation of unsaturated and over-winter subsurface flows which are very difficult to quantify using hydraulic gradient-based approaches. Improved subsurface flow estimates can play a key role in understanding the water budget of this landscape.  相似文献   

Characteristics of the Energy Transfer by Alfvén Waves in the Solar Atmosphere     

Tsap  Yu. T.  Stepanov  A. V.  Kopylova  Yu. G.  Khaneichuk  O. V. 《Geomagnetism and Aeronomy》2020,60(4):446-451

Geomagnetism and Aeronomy - The propagation of linear Alfvén waves with periods of 10–200 s from the photosphere to the solar chromosphere under the conditions of an isothermal...  相似文献   

Influence of Oxygen Ions on the Structure of the Thin Current Sheet in the Earth’s Magnetotail     

Domrin  V. I.  Malova  Kh. V.  Popov  V. Yu.  Grigorenko  E. E.  Petrukovich  A. A. 《Geomagnetism and Aeronomy》2020,60(2):171-183

Geomagnetism and Aeronomy - During geomagnetic substorms, the current sheet in the Earth’s magnetotail can transversely reduce in thickness from a few radii of the Earth (RE) to one to...  相似文献   

Estimation of the Ionospheric Effects of Geomagnetic Disturbances Based on Data from Wakkanai Station     

Legen’ka  A. D.  Khegai  V. V. 《Geomagnetism and Aeronomy》2020,60(5):577-585

Geomagnetism and Aeronomy - Ionosonde measurements of the critical frequency of the ionospheric F2 layer (foF2) at Wakkanai station (Japan) are analyzed with the method of superposed epochs. The...  相似文献