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Showing 1-20 of 4,677 results
  1. The Frequency of Occurrence of Pre-Flare Fluctuations in Microwave Radiation of Active Regions

    Abstract

    We present a study of the frequency of occurrence of quasi-periodic fluctuations (QPFs) of microwave radiation from solar active regions at...

    V. E. Abramov-Maximov, I. A. Bakunina in Geomagnetism and Aeronomy
    Article 25 December 2023
  2. Classification of ice and water in the Arctic using radar altimeter and microwave radiometer data from HY-2B satellite

    Several Chinese marine satellites have been launched in recent years. Monitoring sea ice and the ocean in the Arctic is of great importance for...

    Chengfei Jiang, Mingsen Lin, ... Qimao Wang in Acta Oceanologica Sinica
    Article 01 May 2023
  3. Bomb Cyclones over the North Pacific: Atmospheric Structure and Parameters According to Passive and Active Microwave Measurements from Space

    Abstract

    The data of microwave satellite sensing of two bomb cyclones over the Pacific Ocean are considered. The distinctive features of the cyclones...

    L. M. Mitnik, A. V. Baranyuk, ... M. L. Mitnik in Russian Meteorology and Hydrology
    Article 01 January 2023
  4. Trends in Antarctic Snowmelt Onset for the Period 1988 to 2008 from Passive Microwave Data

    Onset dates of annual snowmelt on the Antarctic sea ice are available from 1988 to 2008. These data sets, derived from passive microwave brightness...

    Article 22 March 2024
  5. Increased Microwave Radiation Brightness as a Sign of Flare-Producing Active Regions Based on Observations of NOAA Active Region 12371

    Abstract

    Methods to predict solar flares based on observations in the microwave range with radio telescopes with high angular resolution continue to...

    N. G. Peterova, N. A. Topchilo, E. A. Kurochkin in Geomagnetism and Aeronomy
    Article 01 December 2021
  6. The Contribution of Sea-Ice Contamination to Inaccuracies in Sea-Ice Concentration Retrieval from Satellite Microwave Radiometry Data during the Ice-Melt Period

    Abstract

    Sea-ice concentrations retrieved from satellite microwave radiometry data are influenced by many natural factors. In the work we consider...

    T. A. Alekseeva, J. V. Sokolova, ... V. M. Smolyanitsky in Izvestiya, Atmospheric and Oceanic Physics
    Article 01 December 2022
  7. Features of the Behavior of Microwave and Ultraviolet Emission of Solar Active Regions in Relation to Eruptive and Confined Flares

    Abstract

    In this study, a comparative analysis was carried out on the preflare and flare conditions for six flares accompanied by coronal mass...

    I. A. Bakunina, V. F. Melnikov, ... A. S. Morgachev in Geomagnetism and Aeronomy
    Article 01 December 2021
  8. Assessing Hydrological Changes in Wetland Areas of the Russian Arctic, Subarctic, and Northern Taiga Based on Microwave Remote Sensing Data

    Abstract

    Specific emissivity features of swamps and wetlands in Western Siberia were studied for changing seasonal conditions with the use of daily...

    A. N. Romanov, I. V. Khvostov, ... E. A. Sharkov in Izvestiya, Atmospheric and Oceanic Physics
    Article 01 December 2022
  9. Signs of Preparation of Solar Flares in the Microwave Range

    Abstract

    We present a study of the spatial distribution of quasi-periodic oscillations (QPOs) of microwave emission in three solar active regions...

    V. E. Abramov-Maximov, I. A. Bakunina in Geomagnetism and Aeronomy
    Article 01 December 2022
  10. Loaded Failure Characteristics of Anthracite Derived from Microwave Irradiation: Acoustic Emission Evaluation

    Microwave energy and in situ stress cooperatively influence the permeability of coal reservoirs in microwave-assisted coalbed methane (CBM)...

    Yirui Gao, Yixin Zhao, ... Sen Gao in Rock Mechanics and Rock Engineering
    Article 05 September 2023
  11. Analysis of the Preflare Phase of Eruptive and Noneruptive Flares Using Data on the Spatial Dynamics of Coronal Magnetic Structures and Their Microwave and Ultraviolet Emission

    Abstract

    The dynamics of the preflare phase of microwave and ultraviolet emission for M-class X-ray flares in three active regions (ARs), two flares...

    I. A. Bakunina, V. F. Melnikov, ... V. E. Abramov-Maximov in Geomagnetism and Aeronomy
    Article 01 December 2022
  12. Quick Event During the Decay Phase of the Microwave Emission of a Flare on May 22, 2021

    Abstract

    This paper presents the results of a study of a short event that occurred during the decay phase of a C6.0 circular flare (GOES). The event...

    I. D. Motyk, L. K. Kashapova, ... E. G. Kupriyanova in Geomagnetism and Aeronomy
    Article 25 December 2023
  13. Optimization of Microwave Presplitting Iron Ore to Improve Mechanical Mining Efficiency

    Optimizing the microwave parameters adopted in microwave-assisted mechanical mining is of great significance to improving the efficiency of the deep...

    Feng Lin, **a-ting Feng, ... Tian-yang Tong in Rock Mechanics and Rock Engineering
    Article 30 November 2023
  14. Spatiotemporal Variations of Microwave Land Surface Emissivity (MLSE) over China Derived from Four-Year Recalibrated Fengyun 3B MWRI Data

    Microwave Land Surface Emissivity (MLSE) over China under both clear and cloudy sky conditions was retrieved using measurements of recalibrated...

    Rui Li, Jiheng Hu, ... Ling Sun in Advances in Atmospheric Sciences
    Article 23 May 2022
  15. Magnetic Flux Ropes in Active Regions with M-Class Flares

    Abstract

    The dynamics of the magnetic field reconstructed in the nonlinear force-free approximation in the pre-flare and post-flare phases of M-class...

    I. A. Bakunina, V. F. Melnikov, ... V. E. Abramov-Maximov in Geomagnetism and Aeronomy
    Article 01 December 2023
  16. Expansion and Compression of a Flare Loop System during the Flare on January 15, 2022 According to Ultraviolet and Microwave Data

    Abstract

    In this paper, we study the dynamics of a single loop structure in a C1.3 flare on January 15, 2022. A new type of behavior of flare loop was...

    V. F. Melnikov, N. S. Meshalkina in Geomagnetism and Aeronomy
    Article 25 December 2023
  17. A Depression of Microwave Emission as a Response to the Appearance of a Jet

    Abstract

    Numerous jets were observed in the extreme ultraviolet images of the SDO/AIA space observatory in early March 2015 in the develo** active...

    I. V. Kuzmenko in Geomagnetism and Aeronomy
    Article 25 December 2023
  18. A Theoretical Model for the Microwave Emissivity of Rough Sea Surfaces

    When sea surface wavelengths are not larger than microwave wavelengths, the microwave emissivity of Gaussian rough sea surfaces can be investigated...

    Zhenlin Yang, Enbo Wei, Peng Gao in Journal of Ocean University of China
    Article 20 June 2022
  19. An improved algorithm for retrieving thin sea ice thickness in the Arctic Ocean from SMOS and SMAP L-band radiometer data

    The aim of this study was to develop an improved thin sea ice thickness (SIT) retrieval algorithm in the Arctic Ocean from the Soil Moisture Ocean...

    Lian He, Senwen Huang, ... **ao Cheng in Acta Oceanologica Sinica
    Article 12 March 2024
  20. Sandpack flooding of microwave absorbent nanofluids under electromagnetic radiation: an experimental study

    Electromagnetic (EM) radiation has long been recognized as an effective method for enhancing the quality and recovery of heavy and extra-heavy crude...

    Reza Gharibshahi, Mohammadreza Omidkhah, Arezou Jafari in Journal of Petroleum Exploration and Production Technology
    Article Open access 12 January 2024
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